| Violation ID |
Occurrence Date |
Violation Type |
Violation Description(-) |
Violation Status |
Priority |
Source |
Facility Name |
Violated Reg. Meas. ID |
Violated Reg. Meas. Order No. |
Linked to Enf. |
| 1088567 |
11/02/2020 |
Late Report |
Third Quarter2020 monitoring report submitted late. |
Violation |
N |
Report |
Sun NG Cisco Grove RV LLC |
145924 |
96-016 |
Y |
| 1101874 |
04/30/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101876 |
05/31/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101894 |
02/25/2021 |
Order Conditions |
Total Coliform in Monitoring Wells (MWs) 2 and 3 reported in violation of Groundwater Limitations D of the WDRs. |
Violation |
None |
Report |
Clearlake Oaks Co WTR Dis WWTP |
147062 |
98-211 |
Y |
| 1104692 |
04/30/2021 |
Deficient Reporting |
The April 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104699 |
11/30/2021 |
Deficient Reporting |
The November 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104701 |
01/31/2022 |
Deficient Reporting |
The January 2022 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1108317 |
06/08/2021 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 90 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1108378 |
03/31/2022 |
Order Conditions |
Total coliform organisms reported at 4.5 MPN/100 mL in MW-4 during the first quarter 2022 monitoring event. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1108379 |
06/30/2022 |
Order Conditions |
Total coliform organisms reported at 17 MPN/100 mL in MW-4 during the second quarter 2022 monitoring event. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1110968 |
01/31/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 16.3 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110979 |
11/30/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 183 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110982 |
06/30/2022 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 44 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110990 |
07/06/2021 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110991 |
08/10/2021 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110993 |
09/29/2021 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110994 |
11/02/2021 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 540.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111476 |
03/15/2021 |
Order Conditions |
Total Coliform Organisms reported in Groundwater Monitoring Wells (MWs) 1, 2 and 3 above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the first quarter 2022 monitoring event. |
Violation |
None |
Report |
Spanish Flat WWT & Disposal Facility |
141184 |
93-236 |
Y |
| 1112464 |
02/28/2022 |
Deficient Reporting |
The February 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1112470 |
08/31/2022 |
Deficient Reporting |
The August 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1118049 |
09/30/2022 |
Order Conditions |
Total Coliform Organisms reported in Groundwater Monitoring Wells (MWs) 1 and 3 reported in violation of Groundwater and Surface Water Limitations C.1.b of the General Order. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118058 |
04/07/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118064 |
06/23/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118072 |
09/01/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 94.7 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118092 |
09/30/2022 |
CAT1 |
Settleable Solids 30-Day Average limit is 0.2 mg/L and reported value was 0.3 mg/L. |
Violation |
None |
Report |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1118099 |
10/04/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 260 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118100 |
01/10/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 98 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118106 |
12/31/2022 |
OEV |
Total Coliform Monthly Median limit is 23.0 MPN/100 mL and reported value was 400 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118128 |
09/30/2022 |
Order Conditions |
Third quarter 2022 groundwater monitoring shows that Nitrate as Nitrogen (LAMW-2R, LAMW-8R2), Total Alkalinity (LAMW-2R, LAMW-8R2) and Total Dissolved Solids (LAMW-5R, LAMW-8R2) reported above calculated background concentrations in groundwater. In addition, Total Coliform Organisms reported in LAMW-1R, MW-3R2, MW-6R, and LAMW-8R2. |
Violation |
None |
Report |
Conagra Oakdale Facility |
131696 |
R5-2002-0098 |
Y |
| 1121906 |
01/02/2023 |
Late Report |
Non submittal of the November 2022 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121908 |
03/02/2023 |
Late Report |
Non submittal of the January 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121913 |
07/02/2023 |
Late Report |
Non submittal of the June 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121915 |
10/02/2023 |
Late Report |
Non submittal of the August 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1123323 |
03/31/2023 |
Order Conditions |
Electrical conductivity, total dissolved solids and fixed dissolved solids reported in groundwater monitoring well (MW-4) during the first quarter 2023 monitoring period at concentrations in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123329 |
12/31/2022 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1123331 |
02/28/2023 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1125463 |
03/07/2023 |
Order Conditions |
Total coliform organisms reported above 2.2 MPN/100 ml in groundwater monitoring wells (W-MW-R and E-MW-R) during the first quarter 2023 monitoring event. |
Violation |
None |
Report |
Waterford WWTP |
140995 |
94-273 |
Y |
| 1126514 |
04/21/2024 |
Order Conditions |
Wastewater spill estimated at approximately 900 gallons that occurred on 21 April 2024 (Cal OES Control No. 24-2344). The spill was caused by capacity issues at the WWTF which resulted in erosion from a berm on Pond 2. Wastewater from Pond 2 discharged into Pond 1 caused an overflow from the pond into the neighboring orchard. Road base material was placed around a portion of the berm. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1126682 |
02/02/2024 |
Deficient Reporting |
The 2023 annual monitoring report did not include all information required by the revised MRP. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1126737 |
09/15/2023 |
Order Conditions |
Total Coliform Organisms reported in excess of Groundwater Limitations D.1 of the WDRs during the second quarter monitoring event in MW-1 and MW-3. |
Violation |
None |
Report |
Circle Oaks WWTF |
141723 |
94-097 |
Y |
| 1126738 |
02/02/2023 |
Deficient Reporting |
The 2022 annual monitoring report did not include all information required by the revised MRP. |
Violation |
None |
Report |
Circle Oaks WWTF |
141723 |
94-097 |
Y |
| 1128262 |
04/30/2023 |
Order Conditions |
The April 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128268 |
10/31/2023 |
Order Conditions |
The September 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128272 |
02/02/2024 |
Deficient Reporting |
The ?Sludge Monitoring? section of the MRP states: ?A composite sample of digested sludge be collected at least once per year when sludge is removed from the wastewater treatment system for disposal in accordance with EPA?s POTW Sludge Sampling and Analysis Guidance Document, August 1989, and analyzed for cadmium, nickel, chromium, lead, and zinc.? The 2023 Annual Monitoring Report states that there were no records available for sludge sampling during 2023. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128441 |
04/30/2023 |
Order Conditions |
Dissolved oxygen reported at less than 1.0 mg/L in Treatment Pond 1 during the April 2023 monitoring. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1128446 |
12/31/2023 |
Order Conditions |
Total coliform organisms reported above 2.2 MPN/100 mL in MW 13 during the fourth quarter 2023 monitoring event. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1128702 |
02/02/2023 |
Late Report |
Non submittal of the 2022 Annual Monitoring Report |
Violation |
None |
Report |
Secret Ravine Vineyards & Winery |
439086 |
R5-2020-0002 |
Y |
| 1128703 |
02/02/2024 |
Late Report |
Non submittal of the 2022 Annual Monitoring Report |
Violation |
None |
Report |
Secret Ravine Vineyards & Winery |
439086 |
R5-2020-0002 |
Y |
| 1128708 |
02/02/2023 |
Late Report |
Non submittal of 2022 Annual Monitoring Report. |
Violation |
None |
Report |
Hill Top Oaks Winery |
438942 |
R5-2020-0002 |
Y |
| 1128709 |
02/02/2024 |
Late Report |
Non submittal of 2023 Annual Monitoring Report. |
Violation |
None |
Report |
Hill Top Oaks Winery |
438942 |
R5-2020-0002 |
Y |
| 1128710 |
02/02/2022 |
Late Report |
Non submittal of the 2021 Annual Monitoring Report. |
Violation |
None |
Report |
Happy Dayz Vineyard |
444737 |
R5-2020-0002 |
Y |
| 1128887 |
02/02/2024 |
Late Report |
Non-submittal of the 2023 Annual Monitoring Report. |
Violation |
None |
Report |
Napa Ranch Wines LLC |
443934 |
R5-2020-0002 |
Y |
| 1135623 |
08/15/2024 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 310 mg/L. |
Violation |
None |
Report |
Cebro Frozen Foods |
147069 |
98-231 |
Y |
| 1136863 |
09/02/2024 |
Late Report |
Non submittal of the the July 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136867 |
12/02/2023 |
Late Report |
Non submittal of the October 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136873 |
05/02/2024 |
Late Report |
Non submittal of the March 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136900 |
08/02/2024 |
Late Report |
Non submittal of the second quarter 2024 monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1138720 |
09/30/2023 |
Order Conditions |
During the September 2023 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1139007 |
04/07/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 800 gallons to the Salt Creek Drainage in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139013 |
04/21/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 900 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139022 |
07/14/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 2000 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1142315 |
12/18/2024 |
Order Conditions |
Nitrate as Nitrogen reported in Monitoring Wells (MWs) 2, 5 and 11 above the groundwater limitation of 10 mg/L during the fourth quarter 2024 monitoring event in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
City of Patterson WQCF |
425768 |
R5-2018-0070-001 |
Y |
| 1143627 |
10/16/2024 |
OEV |
Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600.0 MPN/100 mL at EFF-001. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143663 |
12/31/2023 |
Order Conditions |
During the fourth quarter 2023 monitoring event, sodium, boron, manganese, total dissolved solids and specific conductivity reported in MW- 2 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. In addition, sodium, manganese, total dissolved solids and specific conductivity reported in MW- 3 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143674 |
08/31/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the August 2024 monitoring, total coliform was reported at 59.78 MPN/100 mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143677 |
06/20/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 20 June 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143679 |
07/02/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 2 July 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143680 |
07/17/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 280 MPN/100 mL on 17 July 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143682 |
11/06/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 23 October 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1088561 |
01/02/2021 |
Late Report |
November 2020 monitoring report submitted late. |
Violation |
N |
Report |
Sun NG Cisco Grove RV LLC |
145924 |
96-016 |
Y |
| 1091091 |
03/16/2021 |
Deficient Reporting |
Non-submittal of February 2021 monthly progress report. |
Violation |
N |
Report |
Isleton WWTP |
443761 |
None |
Y |
| 1101858 |
09/30/2021 |
Deficient Reporting |
Quarterly monitoring report did not include all information required by the MRP. The monitoring report did not include the following: (1) a narrative description of all preparatory, monitoring, sampling, and analytical testing activities, (2) calculation of groundwater elevations, an assessment of the groundwater flow direction and gradient on the date of the measurement, comparison to previous flow direction and gradient data, and a discussion of seasonal trends, (3) a narrative discussion of the analytical results for all media and locations monitored including spatial and temporal trends with reference to summary data tables, graphs, and appended analytical reports, (4) a comparison of the monitoring data for the discharge specifications and groundwater limitations, (5) summary data tables of historical and current water table elevations and analytical results, and (6) a scaled map showing relevant structures and features of the facility, the locations of monitoring wells and other sampling stations, and the groundwater elevation contours referenced to mean sea level datum. |
Violation |
None |
Report |
Mountain of Attn Sanctuary |
131616 |
R5-2002-0221 |
Y |
| 1104720 |
12/31/2021 |
Order Conditions |
Effluent and Mass Loading Limitations C.2 of the WDRs states that irrigation with treated wastewater and supplemental water applied to the LAAs shall not exceed the annual maximum total nitrogen mass loading crop demand. The 2021 Annual Monitoring Report states that three land application areas (LAA1, LAA3, and LAA5-3) exceeded the available nitrogen crop demand for alfalfa of 50 lbs/acre, exceeding this guideline by a maximum of 64 lbs/acre at LAA5-3. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1104725 |
09/30/2021 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring well (W-3) during the third quarter 2021 monitoring event in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1110969 |
02/28/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 20 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110977 |
09/30/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 148 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110984 |
08/31/2022 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 322.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110992 |
08/17/2021 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110995 |
05/10/2022 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110998 |
08/16/2022 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111487 |
02/03/2022 |
Order Conditions |
Total Coliform Organisms reported in groundwater monitoring wells (MWs) 1R, and 4R above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the first quarter 2022 monitoring event. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1118048 |
11/22/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 241 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118050 |
03/31/2022 |
Order Conditions |
Total Coliform Organisms reported in Groundwater Monitoring Wells (MWs) 2 and 3 reported in violation of Groundwater and Surface Water Limitations C.1.b of the General Order. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118068 |
03/03/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 639.1 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118090 |
09/30/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) 30-Day Average limit is 40 mg/L and reported value was 54 mg/L. |
Violation |
None |
Report |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1118094 |
06/30/2022 |
Order Conditions |
Total coliform organisms reported at 23 MPN/100 mL in MW-3 during the second quarter 2022 monitoring event. |
Violation |
None |
Report |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1118098 |
02/22/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 mg/L and reported value was 82 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118110 |
11/22/2022 |
OEV |
Total Coliform Daily Maximum limit is 500 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1121909 |
04/02/2023 |
Late Report |
Non submittal of the February 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121910 |
05/02/2023 |
Late Report |
Non submittal of the March 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1123327 |
09/30/2022 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1126512 |
03/23/2024 |
Order Conditions |
Wastewater spill estimated at approximately 200 gallons that occurred on 23 March 2024 (Cal OES Control No. 24-1765). The spill was caused by a power outage which resulted in pumps at the headworks malfunctioning causing raw sewage to impact soil and vegetation of the nearby property. Arbuckle PUD is in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1128255 |
01/31/2024 |
Order Conditions |
Pond freeboard reported at less than two feet in Ponds 1, 2 and 3 during January 2023 monitoring. |
Violation |
None |
Report |
Lake Berryessa Resort Improvement District WWTF |
392774 |
R5-2013-0114 |
Y |
| 1128257 |
03/31/2023 |
Order Conditions |
Pond freeboard reported at less than two feet in Ponds 1, 2 and 4 during March 2023 week 1 monitoring. |
Violation |
None |
Report |
Lake Berryessa Resort Improvement District WWTF |
392774 |
R5-2013-0114 |
Y |
| 1128890 |
02/02/2024 |
Late Report |
Non submittal of the 2023 Annual Monitoring Report. |
Violation |
None |
Report |
Smokin' Barrel Winery |
442689 |
R5-2020-0002 |
Y |
| 1136124 |
12/31/2023 |
Order Conditions |
The 2023 Annual Monitoring Report states that Electrical Conductivity, Chloride, and Nitrate as Nitrogen were reported in Monitoring Well (MW) 7 above statistically calculated baseline groundwater quality, which is a violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1136869 |
02/02/2024 |
Late Report |
Non submittal of the the December 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136879 |
10/02/2024 |
Late Report |
Non submittal of the August 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136895 |
08/02/2023 |
Late Report |
Non submittal of the second quarter 2023 monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1138723 |
12/31/2023 |
Order Conditions |
During the December 2023 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1139019 |
06/11/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 1500 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1143624 |
08/28/2024 |
OEV |
Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600.0 MPN/100 mL at EFF-001. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143625 |
10/02/2024 |
OEV |
Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600.0 MPN/100 mL at EFF-001. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143640 |
06/30/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the June 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143647 |
10/24/2024 |
Order Conditions |
Total coliform organisms reported in MW-1 and MW-3 above 2.2 MPN/100 mL during the 2023 second semi-annual monitoring event in violation of Groundwater Limitation G.1 of the WDRs. |
Violation |
None |
Report |
Lakeport City WWTP |
368729 |
R5-2012-0025 |
Y |
| 1143649 |
11/06/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 11 mg/L. |
Violation |
None |
Report |
Lakeport City WWTP |
368729 |
R5-2012-0025 |
Y |
| 1143652 |
02/07/2025 |
OEV |
Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Lakeport City WWTP |
368729 |
R5-2012-0025 |
Y |
| 1143657 |
08/31/2025 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 47.8 mg/L. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143667 |
12/31/2024 |
Order Conditions |
During the fourth quarter 2024 monitoring event, sodium, boron and total dissolved solids reported in MW- 2 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. In addition, sodium, manganese and total dissolved solids reported in MW- 3 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143672 |
06/30/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the June 2024 monitoring, total coliform was reported at 536.58 MPN/100 mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143673 |
07/31/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the July 2024 monitoring, total coliform was reported at 470.9 MPN/100 mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143678 |
06/26/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 540 MPN/100 mL on 26 June 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143691 |
09/30/2024 |
Order Conditions |
During the third quarter 2024 groundwater monitoring event, total coliform organisms were reported in groundwater monitoring well MW-4 at 33 MPN/100mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1088560 |
12/02/2020 |
Late Report |
October 2020 monitoring report submitted late. |
Violation |
N |
Report |
Sun NG Cisco Grove RV LLC |
145924 |
96-016 |
Y |
| 1088562 |
02/02/2021 |
Late Report |
December 2020 monitoring report submitted late. |
Violation |
N |
Report |
Sun NG Cisco Grove RV LLC |
145924 |
96-016 |
Y |
| 1091088 |
12/16/2020 |
Deficient Reporting |
Non-submittal of November 2020 monthly progress report. |
Violation |
N |
Report |
Isleton WWTP |
443761 |
None |
Y |
| 1091092 |
04/16/2021 |
Deficient Reporting |
Non-submittal of March 2021 monthly progress report. |
Violation |
N |
Report |
Isleton WWTP |
443761 |
None |
Y |
| 1099333 |
12/31/2020 |
Order Conditions |
Total coliform exceeded the 7-day median groundwater limitation for MW-4, and MW-6. |
Violation |
None |
Report |
Lakeport City WWTP |
368729 |
R5-2012-0025 |
Y |
| 1101869 |
12/31/2020 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101882 |
08/31/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1104696 |
08/31/2021 |
Deficient Reporting |
The August 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104698 |
10/31/2021 |
Deficient Reporting |
The October 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1108316 |
06/02/2021 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 mg/L and reported value was 120 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1110822 |
11/06/2022 |
Order Conditions |
Violation of Discharge Prohibition No.4 of Waste Discharge Requirements Order No. R5-2009-0023 for a sewage spill estimated at approximately 6,000 gallons to unpaved ground in an open field. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1110959 |
04/30/2021 |
CAT1 |
Total Dissolved Solids (TDS) 30-Day Average limit is 450 mg/L and reported value was 570 mg/L. |
Violation |
None |
Report |
Del Rio CSD WWTF |
194858 |
97-010-DWQ |
Y |
| 1110964 |
04/30/2021 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10 mg/L and reported value was 19 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110965 |
08/31/2021 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 12 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110967 |
12/31/2021 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 22.5 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110974 |
06/30/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 429 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110987 |
04/27/2021 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110997 |
07/19/2022 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111478 |
08/30/2022 |
Order Conditions |
Total Coliform Organisms reported in Groundwater Monitoring Wells (MW) 3 above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the third quarter 2022 monitoring event. |
Violation |
None |
Report |
Spanish Flat WWT & Disposal Facility |
141184 |
93-236 |
Y |
| 1112463 |
01/31/2022 |
Deficient Reporting |
The January 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1112467 |
05/31/2022 |
Deficient Reporting |
The May 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1112469 |
07/31/2022 |
Deficient Reporting |
The July 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1118062 |
06/09/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118069 |
04/07/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 1284 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118075 |
11/04/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 117.3 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118105 |
11/30/2022 |
OEV |
Total Coliform Monthly Median limit is 23.0 MPN/100 mL and reported value was 400 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118113 |
01/09/2023 |
Order Conditions |
Raw sewage spills totaling approximately 1750 gallons associated with overflowing manholes at 6810 and 6840 Meadowbrook Drive in Clearlake during a storm event in January 2023. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118124 |
12/31/2021 |
Order Conditions |
Fourth quarter 2021 groundwater monitoring shows that Nitrate as Nitrogen (LAMW-2R), Total Dissolved Solids (LAMW-2R, LAMW-5R) reported above the calculated background tolerance concentrations in groundwater. In addition, Total Coliform Organisms reported in APMW-1R and LAMW-2R. |
Violation |
None |
Report |
Conagra Oakdale Facility |
131696 |
R5-2002-0098 |
Y |
| 1118733 |
03/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 48 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1118738 |
10/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 51 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1123312 |
09/30/2022 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in September 2022 at a concentration of 1600 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123319 |
08/31/2023 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in August 2023 at a concentration of 1800 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123322 |
12/31/2022 |
Order Conditions |
Electrical conductivity, total dissolved solids and fixed dissolved solids reported in groundwater monitoring well (MW-4) during the fourth quarter 2022 monitoring period at concentrations in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123328 |
11/30/2022 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1123333 |
06/30/2023 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1123344 |
01/31/2023 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A., 2 and 3 during the first quarter 2023 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1128261 |
03/31/2023 |
Order Conditions |
The March 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128267 |
09/30/2023 |
Order Conditions |
The September 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128707 |
02/02/2022 |
Late Report |
Non submittal of 2021 Annual Monitoring Report. |
Violation |
None |
Report |
Hill Top Oaks Winery |
438942 |
R5-2020-0002 |
Y |
| 1128712 |
02/02/2024 |
Late Report |
Non submittal of the 2023 Annual Monitoring Report. |
Violation |
None |
Report |
Happy Dayz Vineyard |
444737 |
R5-2020-0002 |
Y |
| 1135620 |
12/21/2023 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 220 mg/L. |
Violation |
None |
Report |
Cebro Frozen Foods |
147069 |
98-231 |
Y |
| 1136122 |
09/30/2024 |
Order Conditions |
Total Coliform Organisms exceeded 2.2 MPN/100 mL in Monitoring Wells (MW)s 1. 2 and 3 during the third quarter 2024 monitoring period, in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1136868 |
01/02/2024 |
Late Report |
Non submittal of the November 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136877 |
09/02/2024 |
Late Report |
Non submittal of the July 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1138726 |
04/30/2024 |
Order Conditions |
During the April 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1138728 |
06/30/2024 |
Order Conditions |
During the June 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1138729 |
07/31/2024 |
Order Conditions |
During the July 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1138730 |
08/31/2024 |
Order Conditions |
During the August 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1138731 |
09/30/2024 |
Order Conditions |
During the August 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1139021 |
07/11/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 400 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139024 |
10/03/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 17000 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1140933 |
03/31/2024 |
Order Conditions |
First quarter 2024 groundwater monitoring report shows that pH in (MWs 1, 2, 3, 11 and 12), electrical conductivity in (MWs 1, 2, 3, 4, 5R, 6, 7, 9, 10, 11 and 13), nitrate as nitrogen in (MWs 1, 3, 4, 7, 9, 11 and 12), total dissolved solids in (MWs1 through 13), arsenic in (MWs 5R, 6 and 10), iron in (MWs 5R and 10), manganese in (MWs 2, 3, 5R, 6, 7, and 10), sodium in (MWs 1, 2, 3, 5R, 6, 7, 9, 10, 11 and 13) and chloride in (MW 1) exceeded water quality objectives in violation of Groundwater Limitations D.2 of the WDRs. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1143644 |
10/31/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the October 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143650 |
12/04/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 11 mg/L. |
Violation |
None |
Report |
Lakeport City WWTP |
368729 |
R5-2012-0025 |
Y |
| 1143658 |
06/30/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 40.0 mg/L and reported value was 43 mg/L. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143668 |
07/31/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the 30-day average BOD concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 40 mg/L. The July 2024 monitoring report indicates that the 30-day average BOD effluent concentration was 50.8 mg/L. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143675 |
10/31/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the October 2024 monitoring, total coliform was reported at 418.45 MPN/100 mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1088376 |
02/01/2021 |
Deficient Reporting |
The 2020 Annual Monitoring Report did not include all information as required by the revised Monitoring and Reporting Program. The missing information was as follows: (1) an evaluation of the performance of the wastewater system, (2) a discussion of compliance and corrective actions taken, and (3) a discussion of any data gaps and potential deficinencies/redundancies in the monitoring system or reporting program. |
Violation |
N |
Report |
Kingsbury Greens CSD WWTP |
145906 |
95-238 |
Y |
| 1088563 |
03/02/2021 |
Late Report |
January 2020 monitoring report submitted late. |
Violation |
N |
Report |
Sun NG Cisco Grove RV LLC |
145924 |
96-016 |
Y |
| 1099294 |
12/07/2020 |
Order Conditions |
Nitrate as nitrogen exceeded 10 mg/L in monitoring wells (MWs) 5 and 6 during the second semi-annual 2020 monitoring event in violation of Groundwater Limitation E.1 of the WDRs. |
Violation |
None |
Report |
City of Patterson WQCF |
425768 |
R5-2018-0070-001 |
Y |
| 1101872 |
03/31/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101880 |
07/31/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1104697 |
09/30/2021 |
Deficient Reporting |
The September 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1108319 |
12/07/2021 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 280 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1110972 |
04/30/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 411.5 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110973 |
05/31/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 402 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111477 |
06/07/2022 |
Order Conditions |
Total Coliform Organisms reported in Groundwater Monitoring Wells (MWs) 2 and 3 above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the second quarter 2022 monitoring event. |
Violation |
None |
Report |
Spanish Flat WWT & Disposal Facility |
141184 |
93-236 |
Y |
| 1111489 |
09/24/2022 |
Order Conditions |
Total Coliform Organisms reported in groundwater monitoring wells (MWs) 1R, 2R, 3R, 4R and 5R above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the third quarter 2022 monitoring event. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1112462 |
12/31/2021 |
Deficient Reporting |
The December 2021 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1112465 |
03/31/2022 |
Deficient Reporting |
The March 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1112473 |
02/02/2022 |
Late Report |
The 2021 Annual Monitoring Report not received. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1114102 |
12/30/2022 |
Order Conditions |
Raw sewage spill estimated at 70,535 gallons that occurred from the North San Juan Treatment Plant located at 30070 Rush Street, and Manhole 36 and 37 located at 29658 State Highway 49 in North San Juan. |
Violation |
None |
Report |
North San Juan WW Facility |
139946 |
87-190 |
Y |
| 1118031 |
07/28/2022 |
Order Conditions |
pH in pond 1 reported above 8.5 pH units in violation of Discharge Specification B.17 of the WDRs. |
Violation |
None |
Report |
Skyview Terrace Mobile Home Park |
131693 |
R5-2002-0140 |
Y |
| 1118042 |
05/26/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 108 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118045 |
08/28/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 755 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118053 |
06/30/2022 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring well (MW2) in violation of Groundwater Limitations F of the WDRs. |
Violation |
None |
Report |
Weimar Institute WWTP |
313605 |
R5-2005-0099 |
Y |
| 1118070 |
05/05/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 191.3 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118089 |
09/20/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 190 mg/L. |
Violation |
None |
Report |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1118091 |
07/31/2022 |
CAT1 |
Settleable Solids 30-Day Average limit is 0.2 mg/L and reported value was 0.3 mg/L. |
Violation |
None |
Report |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1118093 |
03/31/2022 |
Order Conditions |
Total coliform organisms reported at 4.5 MPN/100 mL in MW-1 during the first quarter 2022 monitoring event. |
Violation |
None |
Report |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1118101 |
06/30/2022 |
OEV |
Total Coliform Monthly Median limit is 23 MPN/100 mL and reported value was 87.5 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118126 |
06/30/2022 |
Order Conditions |
Second quarter 2022 groundwater monitoring shows that Chloride (LAMW-5R), Nitrate as Nitrogen (LAMW-2R), Total Alkalinity (LAMW-2R and Total Dissolved Solids (LAMW-5R) reported above calculated background concentrations in groundwater. In addition, Total Coliform Organisms reported in LAMW-2R. |
Violation |
None |
Report |
Conagra Oakdale Facility |
131696 |
R5-2002-0098 |
Y |
| 1118734 |
04/30/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 68 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1118736 |
07/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 110 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1121912 |
07/02/2023 |
Late Report |
Non submittal of the May 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121914 |
09/02/2023 |
Late Report |
Non submittal of the July 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1123313 |
10/31/2022 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in October 2022 at a concentration of 1900 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123321 |
09/30/2022 |
Order Conditions |
Electrical conductivity, total dissolved solids and fixed dissolved solids reported in groundwater monitoring well (MW-4) during the third quarter 2022 monitoring period at concentrations in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123330 |
01/31/2023 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1123342 |
09/30/2022 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A and 3 during the third quarter 2022 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1123343 |
12/31/2022 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A. and 3 during the fourth quarter monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1126678 |
02/02/2023 |
Deficient Reporting |
The 2022 annual monitoring report did not include all information required by the revised MRP. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1128269 |
12/31/2022 |
Order Conditions |
During the fourth quarter 2022 monitoring event, monitoring well (MW-3) was not sampled due to insufficient water. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128271 |
09/30/2023 |
Order Conditions |
During the third quarter 2023 monitoring event, monitoring well (MW-3) was not sampled due to insufficient water. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128701 |
02/02/2022 |
Late Report |
Non submittal of the 2021 Annual Monitoring Report |
Violation |
None |
Report |
Secret Ravine Vineyards & Winery |
439086 |
R5-2020-0002 |
Y |
| 1128885 |
02/02/2024 |
Late Report |
Non-submittal of the 2021 Annual Monitoring Report. |
Violation |
None |
Report |
Napa Ranch Wines LLC |
443934 |
R5-2020-0002 |
Y |
| 1128889 |
02/02/2023 |
Late Report |
Non submittal of the 2022 Annual Monitoring Report. |
Violation |
None |
Report |
Smokin' Barrel Winery |
442689 |
R5-2020-0002 |
Y |
| 1136120 |
03/31/2024 |
Order Conditions |
Total Coliform Organisms exceeded 2.2 MPN/100 mL in Monitoring Well (MW) 2 during the first quarter 2024 monitoring period, in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1136865 |
08/02/2023 |
Late Report |
Non submittal of the August 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136870 |
02/02/2024 |
Late Report |
Non submittal of the Second Semi-Annual 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136871 |
03/02/2024 |
Late Report |
Non submittal of the January 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136874 |
06/02/2024 |
Late Report |
Non submittal of the April 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136893 |
02/02/2024 |
Late Report |
Non submittal of the fourth quarter 2022/annual monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1136897 |
02/02/2024 |
Late Report |
Non submittal of the fourth quarter 2023/annual monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1138725 |
03/31/2024 |
Order Conditions |
During the March 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1139005 |
09/19/2023 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 100 gallons to the Salt Creek Drainage in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139008 |
05/10/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 2500 gallons to the Salt Creek Drainage in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139016 |
05/29/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 900 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1140934 |
06/30/2024 |
Order Conditions |
Second quarter 2024 groundwater monitoring report shows that pH in (MWs 1, 2, 11 and 12), electrical conductivity in (MWs 2 through 13), nitrate as nitrogen in (MWs 3, 4, 7, 8, 9, 11 and 12), total dissolved solids in (MWs 2 through 13), arsenic in (MWs 5R, 6, 10, 11 and 12), iron in (MWs 5R, 6 and 10), manganese in (MWs 2, 5R, 6, 7, and 10), and sodium in (MWs 1, 4, 8 and 11) exceeded water quality objectives in violation of Groundwater Limitations D.2 of the WDRs. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1143639 |
05/31/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the May 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143642 |
08/31/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the August 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143643 |
09/30/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the September 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143645 |
11/30/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the November 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143661 |
09/30/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 40.0 mg/L and reported value was 45.5 mg/L. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143664 |
03/31/2023 |
Order Conditions |
During the first quarter 2024 monitoring event, sodium, boron, total dissolved solids and specific conductivity reported in MW- 2 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. In addition, sodium, manganese, total dissolved solids and specific conductivity reported in MW- 3 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143665 |
06/30/2024 |
Order Conditions |
During the second quarter 2024 monitoring event, sodium, boron, total dissolved solids and specific conductivity reported in MW- 2 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. In addition, sodium and manganese reported in MW- 3 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143669 |
11/30/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the 30-day average BOD concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 40 mg/L. The November 2024 monitoring report indicates that the 30-day average BOD effluent concentration was 65.3 mg/L. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143670 |
02/29/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the February 2024 monitoring, total coliform was reported at 33.9 MPN/100 mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143671 |
05/31/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the May 2024 monitoring, total coliform was reported at 191.68 MPN/100 mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143687 |
08/31/2024 |
Order Conditions |
Discharge Specification B.6 of the WDRs states: ?The discharge shall not have a pH less than 6.5 nor greater than 8.5.? The reported pH in the discharge during the August 2024 monitoring was greater than 8.5 pH units on 13 August 2024, 20 August 2024 and 29 August 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143692 |
12/31/2024 |
Order Conditions |
During the third quarter 2024 groundwater monitoring event, total coliform organisms were reported in groundwater monitoring well MW-4 at 4 MPN/100mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1099295 |
05/17/2021 |
Order Conditions |
Nitrate as nitrogen exceeded 10 mg/L in monitoring wells (MWs) 5, 6 and 11 during the first semi-annual 2021 monitoring event in violation of Groundwater Limitation E.1 of the WDRs. |
Violation |
None |
Report |
City of Patterson WQCF |
425768 |
R5-2018-0070-001 |
Y |
| 1101855 |
12/31/2020 |
Deficient Reporting |
Quarterly monitoring report did not include all information required by the MRP. The monitoring report did not include the following: (1) a narrative description of all preparatory, monitoring, sampling, and analytical testing activities, (2) calculation of groundwater elevations, an assessment of the groundwater flow direction and gradient on the date of the measurement, comparison to previous flow direction and gradient data, and a discussion of seasonal trends, (3) a narrative discussion of the analytical results for all media and locations monitored including spatial and temporal trends with reference to summary data tables, graphs, and appended analytical reports, (4) a comparison of the monitoring data for the discharge specifications and groundwater limitations, (5) summary data tables of historical and current water table elevations and analytical results, and (6) a scaled map showing relevant structures and features of the facility, the locations of monitoring wells and other sampling stations, and the groundwater elevation contours referenced to mean sea level datum. |
Violation |
None |
Report |
Mountain of Attn Sanctuary |
131616 |
R5-2002-0221 |
Y |
| 1101871 |
02/28/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101878 |
06/30/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101887 |
10/31/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1104694 |
06/30/2021 |
Deficient Reporting |
The June 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104719 |
12/31/2021 |
Order Conditions |
Effluent and Mass Loading Limitations C.1 of the WDRs states that the effluent flow weighted average BOD concentration shall not exceed a quarterly average of 100 mg/L and/or an annual average of 80 mg/L. The 2021 Annual Monitoring Report states that the fourth quarter and annual average BOD concentration slightly exceeded the WDR limitations of 80 and 100 mg/L. The flow weighted quarterly average BOD concentration was calculated at 159 mg/L and the annual average BOD concentration was 86 mg/L. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1104724 |
06/30/2021 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring wells (W-2, and W-3) during the second quarter 2021 monitoring event in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1108314 |
05/12/2021 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 mg/L and reported value was 100 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1108377 |
09/30/2021 |
Order Conditions |
Total coliform organisms reported at 4.5 MPN/100 mL in MW-4 during the third quarter 2021 monitoring event. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1110975 |
07/31/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 148 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110976 |
08/31/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 148 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110988 |
05/04/2021 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110989 |
06/08/2022 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111486 |
12/13/2021 |
Order Conditions |
Total Coliform Organisms reported in groundwater monitoring wells (MWs) 1R, 2R and 4R above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the fourth quarter 2021 monitoring event. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1112459 |
09/30/2021 |
Deficient Reporting |
The September 2021 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1118041 |
03/09/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 102 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118044 |
07/28/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 202 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118047 |
10/24/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 112 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118057 |
02/17/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118067 |
01/06/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 mg/L and reported value was 225.1 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118071 |
07/07/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 94.7 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118097 |
12/31/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40.0 mg/L and reported value was 42 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118103 |
08/31/2022 |
OEV |
Total Coliform Monthly Median limit is 23.0 MPN/100 mL and reported value was 55 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118108 |
07/08/2022 |
OEV |
Total Coliform Daily Maximum limit is 500 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118114 |
03/21/2023 |
Order Conditions |
Raw sewage spill totaling approximately 600,000 gallons associated with a failed coupler on a 16 inch force main near the vicinity of Lift Station 1 at 14938 Burns Valley Road. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118732 |
02/28/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 170 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1118739 |
12/31/2022 |
CAT1 |
Nitrogen, Total (as N) Annual Average (Mean) limit is 10 mg/L and reported value was 12 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1121916 |
11/02/2023 |
Late Report |
Non submittal of the September 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1123317 |
06/30/2023 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in June 2023 at a concentration of 1500 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123345 |
06/30/2023 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A., 2 and 3 during the second quarter 2023 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1126513 |
04/07/2024 |
Order Conditions |
Wastewater Spill estimated at approximately 800 gallons that occurred on 7 April 2024 (Cal OES Control No.24-2055). The spill was caused by capacity issues at the WWTF and the transferring of wastewater from one pond to another pond caused an overflow of wastewater into Salt Creek. Road base material was placed around a portion of the pond to stop the spill. Arbuckle PUD is in violation of Discharge Prohibition A.1 and A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1126676 |
03/27/2023 |
Order Conditions |
Total Coliform Organisms exceeded groundwater limitations during the first quarter 2023 monitoring event in monitoring wells MW-1, MW-2 and MW-3. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1126685 |
03/07/2024 |
Deficient Reporting |
Duckweed was observed on surface of wastewater ponds 2 and 3 which is a violation of Discharge Specification B.5.c of the WDRs. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1128256 |
02/28/2023 |
Order Conditions |
Pond freeboard reported at less than two feet in Ponds 1, 2 and 3 during February 2023 monitoring. |
Violation |
None |
Report |
Lake Berryessa Resort Improvement District WWTF |
392774 |
R5-2013-0114 |
Y |
| 1128258 |
03/23/2023 |
Order Conditions |
2. Effluent Limitation C.2.b of the WDRs states: ?Prior to discharge to the land application areas, effluent shall not exceed the following limits for total coliform organism: The number of total coliform bacteria shall not exceed an MPN of 240 per 100 mL in more than one sample in any 30-day period. ?The March 2023 monitoring report states that the contact basin outlet total coliform result taken on 23 March 2023 exceeded the maximum daily upper limitation of 240MPN/100mL. |
Violation |
None |
Report |
Lake Berryessa Resort Improvement District WWTF |
392774 |
R5-2013-0114 |
Y |
| 1128259 |
01/31/2023 |
Order Conditions |
The January 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128442 |
08/31/2023 |
Order Conditions |
Dissolved oxygen reported at less than 1.0 mg/L in Treatment Pond 1 during the August 2023 monitoring. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1128444 |
06/30/2023 |
Order Conditions |
Total coliform organisms reported above 2.2 MPN/100 mL in MW 1 during the second quarter 2023 monitoring event. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1128704 |
02/02/2022 |
Late Report |
Non submittal of the 2021 Annual Report. |
Violation |
None |
Report |
Mt. Vernon Winery |
443111 |
R5-2020-0002 |
Y |
| 1128706 |
02/02/2024 |
Late Report |
Non submittal of the 2023 Annual Monitoring Report. |
Violation |
None |
Report |
Mt. Vernon Winery |
443111 |
R5-2020-0002 |
Y |
| 1128711 |
02/02/2023 |
Late Report |
Non submittal of the 2022 Annual Monitoring Report. |
Violation |
None |
Report |
Happy Dayz Vineyard |
444737 |
R5-2020-0002 |
Y |
| 1136112 |
12/31/2023 |
Order Conditions |
The 2023 Annual Monitoring Report states that three land application areas (LAA1, LAA2, and LAA5-3) exceeded the available nitrogen crop demand for alfalfa of 50 lbs/acre. This is an exceedance of the Effluent and Mass Loading Limitations C.2 of the WDRs which states that irrigation with treated wastewater and supplemental water applied to the LAAs shall not exceed the annual maximum total nitrogen mass loading crop demand. The maximum exceedances were as follows: (49.2 lbs/acre at LAA1, 40.9 lbs/acre at LAA2, and 8.2 lbs/acre at LAA5-3). |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1136564 |
01/25/2024 |
Order Conditions |
The first quarter 2024 groundwater monitoring report states that total coliform organisms was reported in groundwater monitoring well (MW-3) at a concentration of 4.5 MPN/100 mL on 25 January 2024. |
Violation |
None |
Report |
Clearlake Oaks Co WTR Dis WWTP |
147062 |
98-211 |
Y |
| 1136864 |
09/02/2023 |
Late Report |
Non submittal of the First Semi-Annual 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136880 |
11/02/2024 |
Late Report |
Non submittal of the September 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136890 |
11/02/2024 |
Late Report |
Non submittal of the third quarter 2022 monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1136894 |
05/02/2023 |
Late Report |
Non submittal of the first quarter 2023 monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1136896 |
11/02/2024 |
Late Report |
Non submittal of the third quarter 2023 monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1138721 |
10/31/2023 |
Order Conditions |
During the October 2023 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1138727 |
05/31/2024 |
Order Conditions |
During the May 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1139009 |
09/05/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 28000gallons to the Salt Creek Drainage in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139010 |
10/16/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 20000 gallons to the Salt Creek Drainage in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139011 |
12/02/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 3000 gallons to the Salt Creek Drainage in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139017 |
06/02/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 900 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139018 |
06/08/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 2000 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1140939 |
01/31/2024 |
Order Conditions |
Dissolved oxygen in treatment pond 1 was reported at 0.57 mg/L during the week 5 monitoring event in violation of Discharge Specification B.3 of the WDRs. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1142313 |
12/05/2023 |
Order Conditions |
Nitrate as Nitrogen reported in Monitoring Wells (MWs) 2, 5 and 11 above the groundwater limitation of 10 mg/L during the fourth quarter 2023 monitoring event in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
City of Patterson WQCF |
425768 |
R5-2018-0070-001 |
Y |
| 1143626 |
10/09/2024 |
OEV |
Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600.0 MPN/100 mL at EFF-001. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143635 |
07/31/2024 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L in the effluent storage pond during the July 2024 monitoring event in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143646 |
12/31/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the December 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143662 |
10/31/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 40.0 mg/L and reported value was 42.5 mg/L. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143685 |
06/30/2024 |
Order Conditions |
Discharge Specification B.6 of the WDRs states: ?The discharge shall not have a pH less than 6.5 nor greater than 8.5.? The reported pH in the discharge during the June 2024 monitoring was greater than 8.5 pH units on 5 June 2024 and 14 June 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1088559 |
11/02/2020 |
Late Report |
September 2020 monitoring report submitted late. |
Violation |
N |
Report |
Sun NG Cisco Grove RV LLC |
145924 |
96-016 |
Y |
| 1088568 |
02/02/2021 |
Late Report |
Fourth Quarter2020 monitoring report submitted late. |
Violation |
N |
Report |
Sun NG Cisco Grove RV LLC |
145924 |
96-016 |
Y |
| 1089460 |
12/31/2020 |
OEV |
Specific Conductance Monthly Average (Mean) limit is 1950 umhos/cm and reported value was 2070 umhos/cm. |
Violation |
N |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1091090 |
02/16/2021 |
Deficient Reporting |
Non-submittal of January 2021 monthly progress report. |
Violation |
N |
Report |
Isleton WWTP |
443761 |
None |
Y |
| 1099300 |
12/07/2020 |
Order Conditions |
Total coliform organism exceeded 2.2 MPN/100 mL in monitoring wells (MW) 6 during the second semi-annual 2020 monitoring event in violation of Groundwater Limitation E.2 of the WDRs. |
Violation |
None |
Report |
City of Patterson WQCF |
425768 |
R5-2018-0070-001 |
Y |
| 1099301 |
05/17/2021 |
Order Conditions |
Total coliform organism exceeded 2.2 MPN/100 mL in monitoring wells (MWs) 1, 6 and 15 during the first semi-annual 2021 monitoring event in violation of Groundwater Limitation E.2 of the WDRs. |
Violation |
None |
Report |
City of Patterson WQCF |
425768 |
R5-2018-0070-001 |
Y |
| 1104693 |
05/31/2021 |
Deficient Reporting |
The May 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104695 |
07/31/2021 |
Deficient Reporting |
The July 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104700 |
12/31/2021 |
Deficient Reporting |
The December 2021 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104702 |
02/28/2022 |
Deficient Reporting |
The February 2022 monitoring report did not include effluent flow monitoring results. |
Violation |
None |
Report |
Westley Comm Sewage Trt Fac |
140871 |
93-087 |
Y |
| 1104721 |
12/31/2021 |
Deficient Reporting |
The revised MRP requires that the 2021 annual monitoring report be prepared as the December monitoring report. Records show that the annual report was submitted with the fourth quarter monitoring report. In addition, the annual monitoring report did not include a statement regarding whether the influent flow meter was calibrated. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1104723 |
03/31/2021 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring wells (W-1, and W-3) during the first quarter 2021 monitoring event in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1104726 |
12/31/2021 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring wells (W-1, W-2 and W-3) during the fourth quarter 2021 monitoring event in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1108318 |
12/01/2021 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 110 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1108320 |
02/22/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 82 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1110962 |
06/30/2022 |
CAT1 |
Total Dissolved Solids (TDS) 30-Day Average limit is 450 mg/L and reported value was 465 mg/L. |
Violation |
None |
Report |
Del Rio CSD WWTF |
194858 |
97-010-DWQ |
Y |
| 1110963 |
06/30/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) 30-Day Average limit is 40 mg/L and reported value was 158.6 mg/L. |
Violation |
None |
Report |
Del Rio CSD WWTF |
194858 |
97-010-DWQ |
Y |
| 1110966 |
11/30/2021 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 24 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110971 |
08/31/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 12 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110981 |
05/31/2022 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 651 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110996 |
05/17/2022 |
OEV |
Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111005 |
06/30/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 15 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1112460 |
10/31/2021 |
Deficient Reporting |
The October 2021 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1112466 |
04/30/2022 |
Deficient Reporting |
The April 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1118034 |
08/29/2022 |
Order Conditions |
pH in pond 1 reported above 8.5 pH units in violation of Discharge Specification B.17 of the WDRs. |
Violation |
None |
Report |
Skyview Terrace Mobile Home Park |
131693 |
R5-2002-0140 |
Y |
| 1118037 |
10/10/2022 |
Order Conditions |
pH in ponds 1 and 2 reported above 8.5 pH units in violation of Discharge Specification B.17 of the WDRs. |
Violation |
None |
Report |
Skyview Terrace Mobile Home Park |
131693 |
R5-2002-0140 |
Y |
| 1118040 |
02/25/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 111.0 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118051 |
12/31/2021 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring well (MW4) in violation of Groundwater Limitations F of the WDRs. |
Violation |
None |
Report |
Weimar Institute WWTP |
313605 |
R5-2005-0099 |
Y |
| 1118052 |
03/31/2022 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring well (MW2) in violation of Groundwater Limitations F of the WDRs. |
Violation |
None |
Report |
Weimar Institute WWTP |
313605 |
R5-2005-0099 |
Y |
| 1118065 |
12/31/2021 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring well (MWs) 3 and 4 in violation of Groundwater Limitations D of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118073 |
10/01/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 94.7 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118081 |
09/14/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 45.0 mg/L and reported value was 156 mg/L. |
Violation |
None |
Report |
Placer Cnty SA No 28, ZONE No.6, Sheridan WWTP |
410231 |
2014-0153-DWQ |
Y |
| 1118095 |
10/31/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 78 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118737 |
08/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 51 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1121901 |
09/19/2023 |
Order Conditions |
Wastewater spill estimated at 100 gallons in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121905 |
12/02/2022 |
Late Report |
Non submittal of the October 2022 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121907 |
02/02/2023 |
Late Report |
Non submittal of the December 2022 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1123314 |
12/31/2022 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in December 2022 at a concentration of 2100 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123320 |
06/30/2022 |
Order Conditions |
Electrical conductivity, total dissolved solids and fixed dissolved solids reported in groundwater monitoring well (MW-4) during the second quarter 2022 monitoring period at concentrations in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123325 |
07/31/2022 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater ponds 1 and 2 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1123341 |
06/30/2022 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A and 3 during the second quarter 2022 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1126511 |
03/21/2024 |
Order Conditions |
Wastewater spill estimated at approximately 700 gallons that occurred on 21 March 2024 (Cal OES No. 24-1764. The spill was due to capacity issues at the WWTF wastewater from Pond 4 overflowed into Salt Creek. Wastewater diverted from Pond 4 to Pond 1, which stopped the spill. Arbuckle PUD is in violation of Discharge Prohibition A.1 and A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1128260 |
02/28/2023 |
Order Conditions |
The February 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128445 |
09/30/2023 |
Order Conditions |
Total coliform organisms reported above 2.2 MPN/100 mL in MW 10 during the third quarter 2023 monitoring event. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1128700 |
02/02/2021 |
Late Report |
Non submittal of the 2020 Annual Monitoring Report |
Violation |
None |
Report |
Secret Ravine Vineyards & Winery |
439086 |
R5-2020-0002 |
Y |
| 1135621 |
03/21/2024 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 110 mg/L. |
Violation |
None |
Report |
Cebro Frozen Foods |
147069 |
98-231 |
Y |
| 1136118 |
09/30/2023 |
Order Conditions |
Total Coliform Organisms exceeded 2.2 MPN/100 mL in Monitoring Wells (MWs) 1 and 4 during the third quarter 2023 monitoring period, in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1138722 |
11/30/2023 |
Order Conditions |
During the November 2023 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1138724 |
01/31/2024 |
Order Conditions |
During the January 2024 monitoring event, the pH was reported in effluent storage pond at greater than 8.5 pH units in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1138732 |
06/16/2024 |
Order Conditions |
During the June 2024 monitoring,. total coliform organisms were reported at >1600 MPN/100 mL in an effluent sample collected on 16 June 2024. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1143641 |
07/31/2024 |
Order Conditions |
The pH in the effluent storage pond reported at greater than 10.0 pH units during the July 2024 monitoring event in violation of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143648 |
10/11/2024 |
Order Conditions |
Total coliform organisms reported in MW-5 above 2.2 MPN/100 mL during the 2024 second semi-annual monitoring event in violation of Groundwater Limitation G.1 of the WDRs. |
Violation |
None |
Report |
Lakeport City WWTP |
368729 |
R5-2012-0025 |
Y |
| 1143651 |
03/15/2024 |
OEV |
Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Lakeport City WWTP |
368729 |
R5-2012-0025 |
Y |
| 1143659 |
07/31/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 40.0 mg/L and reported value was 50.3 mg/L. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143666 |
09/30/2024 |
Order Conditions |
During the third quarter 2024 monitoring event, sodium, boron, total dissolved solids and specific conductivity reported in MW- 2 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. In addition, sodium and manganese reported in MW- 3 above their MCLs in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143686 |
07/31/2024 |
Order Conditions |
Discharge Specification B.6 of the WDRs states: ?The discharge shall not have a pH less than 6.5 nor greater than 8.5.? The reported pH in the discharge during the July 2024 monitoring was greater than 8.5 pH units on 10 July 2024, 17 July 2024 and 23 July 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143689 |
11/30/2024 |
Order Conditions |
Discharge Specification B.6 of the WDRs states: ?The discharge shall not have a pH less than 6.5 nor greater than 8.5.? The reported pH in the discharge during the November 2024 monitoring was greater than 8.5 pH units on 5 November 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1091087 |
11/16/2020 |
Deficient Reporting |
Non-submittal of October 2020 monthly progress report. |
Violation |
N |
Report |
Isleton WWTP |
443761 |
None |
Y |
| 1091093 |
05/16/2021 |
Deficient Reporting |
Non-submittal of April 2021 monthly progress report. |
Violation |
N |
Report |
Isleton WWTP |
443761 |
None |
Y |
| 1101856 |
03/31/2021 |
Deficient Reporting |
Quarterly monitoring report did not include all information required by the MRP. The monitoring report did not include the following: (1) a narrative description of all preparatory, monitoring, sampling, and analytical testing activities, (2) calculation of groundwater elevations, an assessment of the groundwater flow direction and gradient on the date of the measurement, comparison to previous flow direction and gradient data, and a discussion of seasonal trends, (3) a narrative discussion of the analytical results for all media and locations monitored including spatial and temporal trends with reference to summary data tables, graphs, and appended analytical reports, (4) a comparison of the monitoring data for the discharge specifications and groundwater limitations, (5) summary data tables of historical and current water table elevations and analytical results, and (6) a scaled map showing relevant structures and features of the facility, the locations of monitoring wells and other sampling stations, and the groundwater elevation contours referenced to mean sea level datum. |
Violation |
None |
Report |
Mountain of Attn Sanctuary |
131616 |
R5-2002-0221 |
Y |
| 1101862 |
11/30/2020 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101870 |
01/31/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101885 |
09/30/2021 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1101895 |
08/26/2021 |
Order Conditions |
Total Coliform in Monitoring Well (MW) 3 reported in violation of Groundwater Limitations D of the WDRs. |
Violation |
None |
Report |
Clearlake Oaks Co WTR Dis WWTP |
147062 |
98-211 |
Y |
| 1104722 |
12/31/2020 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring wells (W-1, W-2 and W-3) in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1105402 |
12/17/2021 |
Order Conditions |
Total Coliform Organisms reported in Groundwater Monitoring Wells (MWs 3, 4 and 5) at concentrations of 33, 7.8 and 7.8 MPN/100 mL during the Fourth Quarter 2021 sampling event in violation of Groundwater Limitations F.2 of the WDRs. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1110970 |
05/31/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10.0 mg/L and reported value was 21 mg/L. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110983 |
07/31/2022 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 401 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111485 |
08/27/2021 |
Order Conditions |
Total Coliform Organisms reported in groundwater monitoring well (MW) 1R above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the third quarter 2021 monitoring event. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1111488 |
05/16/2022 |
Order Conditions |
Total Coliform Organisms reported in groundwater monitoring wells (MWs) 1R, and 4R above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the second quarter 2022 monitoring event. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1112461 |
11/30/2021 |
Deficient Reporting |
The November 2021 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1112471 |
09/30/2022 |
Deficient Reporting |
The September 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1113601 |
01/24/2023 |
Order Conditions |
On 24 January 2023, Board staff received a Cal OES Report (#23-0716) which stated that during a storm event between 1 and 8 January 2023 a retention pond overflowed causing the release of an estimated 10,000 gallons of wastewater onto soil and then into Slaughters Ravine, a surface water drainage course that leads to the North Fork of the American River located approximately 1.8 miles east of the facility. |
Violation |
None |
Report |
Shady Glen Mobile Home Park |
140148 |
86-187 |
Y |
| 1118028 |
02/25/2022 |
Order Conditions |
pH in ponds 2 and 3 reported above 8.5 pH units in violation of Discharge Specification B.17 of the WDRs. |
Violation |
None |
Report |
Skyview Terrace Mobile Home Park |
131693 |
R5-2002-0140 |
Y |
| 1118036 |
09/29/2022 |
Order Conditions |
pH in ponds 1 and 2 reported above 8.5 pH units in violation of Discharge Specification B.17 of the WDRs. |
Violation |
None |
Report |
Skyview Terrace Mobile Home Park |
131693 |
R5-2002-0140 |
Y |
| 1118043 |
06/27/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 128 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118054 |
12/31/2022 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring wells (MWs) 2 and 8 in violation of Groundwater Limitations F of the WDRs. |
Violation |
None |
Report |
Weimar Institute WWTP |
313605 |
R5-2005-0099 |
Y |
| 1118060 |
05/12/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118061 |
05/19/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118063 |
06/16/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118066 |
03/31/2022 |
Order Conditions |
Total coliform organisms reported in groundwater monitoring well (MW) 3 in violation of Groundwater Limitations D of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118074 |
10/01/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 128.6 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118076 |
12/01/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 117.3 mg/L. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118079 |
05/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 45 mg/L and reported value was 53.4 mg/L. |
Violation |
None |
Report |
Placer Cnty SA No 28, ZONE No.6, Sheridan WWTP |
410231 |
2014-0153-DWQ |
Y |
| 1118088 |
07/19/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 85.0 mg/L. |
Violation |
None |
Report |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1118096 |
11/30/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40.0 mg/L and reported value was 42 mg/L. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118102 |
07/31/2022 |
OEV |
Total Coliform Monthly Median limit is 23.0 MPN/100 mL and reported value was 400 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118109 |
10/18/2022 |
OEV |
Total Coliform Daily Maximum limit is 500 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118735 |
05/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 43 mg/L. |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1123027 |
12/31/2023 |
Order Conditions |
Total Coliform Organism reported above 2.2 MPN/100 mL in groundwater monitoring well (MW) 10 during the first semi-annual 2023 sampling event. |
Violation |
N |
Report |
Hughson WWTF |
383599 |
R5-2012-0003 |
Y |
| 1123318 |
07/31/2023 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in July 2023 at a concentration of 1600 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123324 |
06/30/2023 |
Order Conditions |
Electrical conductivity, total dissolved solids and fixed dissolved solids reported in groundwater monitoring well (MW-4) during the second quarter 2023 monitoring period at concentrations in violation of Groundwater Limitations D.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123332 |
05/31/2023 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1125279 |
12/31/2022 |
Order Conditions |
Manganese reported in groundwater monitoring wells (OMW-1, OMW-4R, and OMW-8) during the fourth quarter 2022 monitoring event at concentrations exceeding the groundwater limitation D.6 of the WDRs. In addition, total coliform organism reported in MW (OMW-3) at concentration exceeding groundwater limitation D.5 of the WDRs. |
Violation |
None |
Report |
Oakdale WWTF |
385669 |
R5-2012-0063 |
Y |
| 1125461 |
12/14/2022 |
Order Conditions |
Total coliform organisms reported above 2.2 MPN/100 ml in groundwater monitoring well (W-MW-R) during the fourth quarter 2022 monitoring event. |
Violation |
None |
Report |
Waterford WWTP |
140995 |
94-273 |
Y |
| 1125465 |
10/24/2023 |
Order Conditions |
Total coliform organisms reported above 2.2 MPN/100 ml in groundwater monitoring wells (W-MW-R) during the third quarter 2023 monitoring event. |
Violation |
None |
Report |
Waterford WWTP |
140995 |
94-273 |
Y |
| 1126675 |
12/31/2022 |
Order Conditions |
Total Coliform Organisms exceeded groundwater limitations during the fourth quarter 2022 monitoring event in monitoring wells MW-1 and MW-3. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1126739 |
02/02/2024 |
Deficient Reporting |
The 2023 annual monitoring report did not include all information required by the revised MRP. |
Violation |
None |
Report |
Circle Oaks WWTF |
141723 |
94-097 |
Y |
| 1128265 |
07/31/2023 |
Order Conditions |
The July 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128266 |
08/31/2023 |
Order Conditions |
The August 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128270 |
06/30/2023 |
Order Conditions |
During the second quarter 2023 monitoring event, monitoring well (MW-3) was not sampled due to insufficient water. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128888 |
02/02/2022 |
Late Report |
Non submittal of the 2021 Annual Monitoring Report. |
Violation |
None |
Report |
Smokin' Barrel Winery |
442689 |
R5-2020-0002 |
Y |
| 1135622 |
04/18/2024 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 86 mg/L. |
Violation |
None |
Report |
Cebro Frozen Foods |
147069 |
98-231 |
Y |
| 1136872 |
04/02/2024 |
Late Report |
Non submittal of the February 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136876 |
08/02/2024 |
Late Report |
Non submittal of the June 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136878 |
09/02/2024 |
Late Report |
Non submittal of the First Semi-Annual 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136881 |
12/02/2024 |
Late Report |
Non submittal of the October 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136898 |
05/02/2024 |
Late Report |
Non submittal of the first quarter 2024 monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1136901 |
11/02/2024 |
Late Report |
Non submittal of the third quarter 2024 monitoring report. |
Violation |
None |
Report |
Markley Cove Resort |
447958 |
2014-0153-DWQ |
Y |
| 1139015 |
05/15/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 900 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139023 |
08/17/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 8000 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1140935 |
09/30/2024 |
Order Conditions |
The third quarter 2024 groundwater monitoring report shows that pH in (MWs 3 and 11), electrical conductivity in (MWs 3, 4, 5R, 6, 7, 8, 9, 11 and 12), nitrate as nitrogen in (MWs 3, 4, 7, 8, 9, 11 and 12), total dissolved solids in (MWs 2 through 13), arsenic in (MWs 5R, 10 and 11), iron in (MWs 5R, 6, 8 and 10), manganese in (MWs 2, 3, 5R, 6, 8, 10 and 11), and sodium in (MWs 3, 6, 7, 9, 11 and 13) exceeded water quality objectives in violation of Groundwater Limitations D.2 of the WDRs. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1140937 |
12/31/2024 |
Order Conditions |
The fourth quarter 2024 groundwater monitoring report shows that pH in (MWs 1, 2, 3, 7, 8, 11 and 12), electrical conductivity in (MWs 2, 3, 4, 5R, 6, 7, 8, 9 and 13), nitrate as nitrogen in (MWs 2, 3, 4, 7, 8, 9, 11 and 12), total dissolved solids in (MWs 1, 2, 3, 4, 5R, 6, 7, 8, 9, 11, 12 and 13), arsenic in (MWs 5R, 10 and 11), iron in (MWs 5R, 6, 7 and 10), manganese in (MWs 2, 3, 5R, 6, 7 and 10), and sodium in (MWs 2, 3, 5R, 6, 7, 9, 11 and 13) exceeded water quality objectives in violation of Groundwater Limitations D.2 of the WDRs. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1142314 |
06/03/2024 |
Order Conditions |
Nitrate as Nitrogen reported in Monitoring Wells (MWs) 2, 5 and 11 above the groundwater limitation of 10 mg/L during the second quarter 2024 monitoring event in violation of Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
City of Patterson WQCF |
425768 |
R5-2018-0070-001 |
Y |
| 1143628 |
10/24/2024 |
OEV |
Total Coliform Monthly Maximum limit is 240 MPN/100 mL and reported value was 1600.0 MPN/100 mL at EFF-001. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143636 |
08/31/2024 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L in the effluent storage pond during the August 2024 monitoring event in violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Report |
Maxwell PUD WWTF |
368841 |
R5-2009-0109 |
Y |
| 1143681 |
10/23/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 23 October 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1091089 |
01/16/2021 |
Deficient Reporting |
Non-submittal of December 2020 monthly progress report. |
Violation |
N |
Report |
Isleton WWTP |
443761 |
None |
Y |
| 1101861 |
10/31/2020 |
Order Conditions |
Discharge Specification B.7 of the WDRs states that the treatment plant effluent shall not have a pH of less than 6.5 or greater than 8.5. The pH reported in the effluent storage pond and golf course ponds 8 and 18 exceeded the limit. |
Violation |
None |
Report |
Hidden Valley Lake WRF |
147692 |
5-00-019 |
Y |
| 1110960 |
05/31/2021 |
CAT1 |
Total Dissolved Solids (TDS) 30-Day Average limit is 450.0 mg/L and reported value was 557 mg/L. |
Violation |
None |
Report |
Del Rio CSD WWTF |
194858 |
97-010-DWQ |
Y |
| 1110961 |
05/31/2022 |
CAT1 |
Total Dissolved Solids (TDS) 30-Day Average limit is 450.0 mg/L and reported value was 465 mg/L. |
Violation |
None |
Report |
Del Rio CSD WWTF |
194858 |
97-010-DWQ |
Y |
| 1110978 |
09/30/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 321 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110980 |
12/31/2021 |
OEV |
Total Coliform Monthly Average (Mean) limit is 23.0 MPN/100 mL and reported value was 39 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1110986 |
04/27/2021 |
CAT1 |
Nitrogen, Total (as N) Monthly Average (Mean) limit is 10 MPN/100 mL and reported value was 15 MPN/100 mL. |
Violation |
None |
Report |
Del Rio East HOA WWTP |
333664 |
97-010-DWQ |
Y |
| 1111475 |
12/08/2021 |
Order Conditions |
Total Coliform Organisms reported in Groundwater Monitoring Wells (MWs) 2 and 3 above 2.2 MPN/100 mL in violation of Groundwater Limitations D.3 of the WDRs during the Fourth Quarter 2021 monitoring. |
Violation |
None |
Report |
Spanish Flat WWT & Disposal Facility |
141184 |
93-236 |
Y |
| 1112468 |
06/30/2022 |
Deficient Reporting |
The June 2022 monthly monitoring report did not include results of effluent, land application area and solids monitoring, comparison of monitoring data to discharge specifications and effluent limitations, cumulative volume of wastewater generated during the year. |
Violation |
None |
Report |
Wineco Inc., dba Wildhurst Vineyards |
368111 |
R5-2012-0024 |
Y |
| 1118029 |
03/09/2022 |
Order Conditions |
pH in pond 3 reported above 8.5 pH units in violation of Discharge Specification B.17 of the WDRs. |
Violation |
None |
Report |
Skyview Terrace Mobile Home Park |
131693 |
R5-2002-0140 |
Y |
| 1118030 |
06/27/2022 |
Order Conditions |
pH in pond 2 reported above 8.5 pH units in violation of Discharge Specification B.17 of the WDRs. |
Violation |
None |
Report |
Skyview Terrace Mobile Home Park |
131693 |
R5-2002-0140 |
Y |
| 1118046 |
09/22/2022 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 90.0 mg/L and reported value was 372 mg/L. |
Violation |
None |
Report |
Auburn Ridge Woods MHP |
422802 |
2014-0153-DWQ |
Y |
| 1118056 |
02/10/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118059 |
05/05/2022 |
Order Conditions |
pH reported in wastewater pond in violation of Discharge Specification B.4 of the WDRs. |
Violation |
None |
Report |
Grass Valley Mobile Home Village |
146358 |
98-011 |
Y |
| 1118080 |
07/06/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 45.0 mg/L and reported value was 59 mg/L. |
Violation |
None |
Report |
Placer Cnty SA No 28, ZONE No.6, Sheridan WWTP |
410231 |
2014-0153-DWQ |
Y |
| 1118083 |
12/31/2021 |
Order Conditions |
The fourth quarter 2021 groundwater monitoring report shows that TDS, chloride, iron and manganese were reported in groundwater in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
Lincoln Mill Site |
146409 |
95-094 |
Y |
| 1118104 |
10/31/2022 |
OEV |
Total Coliform Monthly Median limit is 23.0 MPN/100 mL and reported value was 400 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118107 |
01/31/2023 |
OEV |
Total Coliform Monthly Median limit is 23.0 MPN/100 mL and reported value was 27.5 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118111 |
12/01/2022 |
OEV |
Total Coliform Daily Maximum limit is 500 MPN/100 mL and reported value was 1600 MPN/100 mL. |
Violation |
None |
Report |
Southeast Regional WW System |
146234 |
96-166 |
Y |
| 1118125 |
03/31/2022 |
Order Conditions |
First quarter 2022 groundwater monitoring shows that Chloride (LAMW-5R), Nitrate as Nitrogen, (LAMW-2R), Total Alkalinity (LAMW-2R) and Total Dissolved Solids (LAMW-5R) reported above calculated background concentrations in groundwater. In addition, Total Coliform Organisms reported in LAMW-2R. |
Violation |
None |
Report |
Conagra Oakdale Facility |
131696 |
R5-2002-0098 |
Y |
| 1118130 |
12/31/2022 |
Order Conditions |
Fourth quarter 2022 groundwater monitoring shows that Total Alkalinity (LAMW-2R, LAMW-8R2) and Total Dissolved Solids (LAMW-5R, LAMW-8R2) reported above calculated background concentrations in groundwater. In addition, Total Coliform Organisms reported in APMW-1, LAMW-2R, LAMW-6R, LAMW-7R and LAMW-8R2.. |
Violation |
None |
Report |
Conagra Oakdale Facility |
131696 |
R5-2002-0098 |
Y |
| 1118731 |
01/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30 and reported value was 40 . |
Violation |
None |
Report |
Auburn Valley CSD WWTF |
417094 |
2014-0153-DWQ |
Y |
| 1121911 |
06/02/2023 |
Late Report |
Non submittal of the April 2023 monitoring report. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1123315 |
02/28/2023 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in February 2023 at a concentration of 1700 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123316 |
04/30/2023 |
Order Conditions |
The effluent from the processing facility to the pond exceeded an electrical conductivity (EC) daily maximum concentration of 1,200 umhos/cm in April 2023 at a concentration of 1800 umhos/cm. |
Violation |
None |
Report |
Hughson Nut Company |
146359 |
98-012 |
Y |
| 1123326 |
08/31/2022 |
Order Conditions |
Dissolved Oxygen reported at less than 1.0 mg/L for three consecutive weekly sampling events in wastewater pond 1 in violation of Discharge Specification D.8 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
Y |
| 1125280 |
12/31/2023 |
Order Conditions |
Manganese reported in groundwater monitoring wells (OMW-1, OMW-4R, and OMW-8) during the fourth quarter 2022 monitoring event at concentrations exceeding groundwater limitation D.6 of the WDRs. |
Violation |
None |
Report |
Oakdale WWTF |
385669 |
R5-2012-0063 |
Y |
| 1126677 |
06/12/2023 |
Order Conditions |
Total Coliform Organisms exceeded groundwater limitations during the first quarter 2023 monitoring event in monitoring wells MW-1, MW-2 and MW-3. |
Violation |
None |
Report |
Capell Valley Estates |
141725 |
94-099 |
Y |
| 1126736 |
06/06/2023 |
Order Conditions |
Total Coliform Organisms reported in excess of Groundwater Limitations D.1 of the WDRs during the second quarter monitoring event in MW-2 and MW-4. |
Violation |
None |
Report |
Circle Oaks WWTF |
141723 |
94-097 |
Y |
| 1128263 |
05/31/2023 |
Order Conditions |
The May 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128264 |
06/30/2023 |
Order Conditions |
The June 2023 monitoring report states that due to multiple process failures that ultimately required the replacement of sheet membranes at the plant, the treatment plant was offline. Untreated wastewater was discharged in one the lined wastewater storage ponds until it could be treated, tested and discharged to the land application area. |
Violation |
None |
Report |
Napa Berryessa WTF |
368742 |
R5-2013-0065 |
Y |
| 1128443 |
01/31/2024 |
Order Conditions |
Dissolved oxygen reported at less than 1.0 mg/L in Treatment Pond 1 during the August 2023 monitoring. |
Violation |
None |
Report |
Riverbank WWTP |
141726 |
94-100 |
Y |
| 1128705 |
02/02/2023 |
Late Report |
Non submittal of the 2022 Annual Monitoring Report. |
Violation |
None |
Report |
Mt. Vernon Winery |
443111 |
R5-2020-0002 |
Y |
| 1128886 |
02/02/2023 |
Late Report |
Non-submittal of the 2022 Annual Monitoring Report. |
Violation |
None |
Report |
Napa Ranch Wines LLC |
443934 |
R5-2020-0002 |
Y |
| 1135618 |
09/21/2023 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 and reported value was 210 . |
Violation |
None |
Report |
Cebro Frozen Foods |
147069 |
98-231 |
Y |
| 1135619 |
11/16/2023 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 1300 mg/L. |
Violation |
None |
Report |
Cebro Frozen Foods |
147069 |
98-231 |
Y |
| 1135624 |
09/19/2024 |
Order Conditions |
The pH in pond no. 2 during September 2024 was 6.2 pH units which is a violation of Discharge Specification B.6 of the WDRs. |
Violation |
None |
Report |
Cebro Frozen Foods |
147069 |
98-231 |
Y |
| 1136119 |
12/31/2023 |
Order Conditions |
Total Coliform Organisms exceeded 2.2 MPN/100 mL in Monitoring Wells (MWs) 1, 3 and 4 during the fourth quarter 2023 monitoring period, in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1136121 |
06/30/2024 |
Order Conditions |
Total Coliform Organisms exceeded 2.2 MPN/100 mL in Monitoring Well (MW) 3 during the second quarter 2024 monitoring period, in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
City of Newman WWTF |
420963 |
R5-2018-0024 |
Y |
| 1136562 |
07/25/2024 |
Order Conditions |
Discharge Specification B.7 of the WDRs states: ?Ponds shall not have a pH less than 6.5 or greater than 8.5.?: The July 2024 monitoring report states that the pH in the pond no. 1 effluent was reported at 8.58 pH units on 25 July 2024. The report also states that this was corrected by temporarily taking pond no. 1 offline to increase the detention time in the treatment process. |
Violation |
None |
Report |
Clearlake Oaks Co WTR Dis WWTP |
147062 |
98-211 |
Y |
| 1136866 |
11/02/2024 |
Late Report |
Non submittal of the September 2023 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1136875 |
07/02/2024 |
Late Report |
Non submittal of the May 2024 monitoring report. |
Violation |
None |
Report |
Moss Creek Winery |
140249 |
88-066 |
Y |
| 1139014 |
05/05/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 1000 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1139020 |
06/20/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 2000 gallons to the almond orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1143660 |
08/31/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 40.0 mg/L and reported value was 54.4 mg/L. |
Violation |
None |
Report |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1143676 |
11/30/2024 |
Order Conditions |
Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the November 2024 monitoring, total coliform was reported at 801 MPN/100 mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143683 |
04/30/2024 |
Order Conditions |
Discharge Specification B.6 of the WDRs states: ?The discharge shall not have a pH less than 6.5 nor greater than 8.5.? The reported pH in the discharge during the April 2024 monitoring was greater than 8.5 pH units on 17 April 2024 and 29 April 2024.. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143684 |
05/31/2024 |
Order Conditions |
Discharge Specification B.6 of the WDRs states: ?The discharge shall not have a pH less than 6.5 nor greater than 8.5.? The reported pH in the discharge during the May 2024 monitoring was greater than 8.5 pH units on 3 May 2024, 8 May 2024, 15 May 2024 and 22 May 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143688 |
10/31/2024 |
Order Conditions |
Discharge Specification B.6 of the WDRs states: ?The discharge shall not have a pH less than 6.5 nor greater than 8.5.? The reported pH in the discharge during the October 2024 monitoring was greater than 8.5 pH units on 1 October 2024. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1143690 |
03/31/2024 |
Order Conditions |
During the first quarter 2024 groundwater monitoring event, total coliform organisms were reported in groundwater monitoring wells, MWs 3 and 4 at 6.8 and 79 MPN/100mL. |
Violation |
None |
Report |
Middletown STP (SD 2-2) |
146902 |
97-249 |
Y |
| 1139012 |
03/23/2024 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 200 gallons to the Almond Orchard located just east of the ponds in violation of Discharge Prohibition A.2 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
N |
| 1123026 |
06/30/2022 |
Order Conditions |
Total Coliform Organism reported above 2.2 MPN/100 mL in groundwater monitoring wells (MW) 8 and 10D during the second semi-annual 2022 sampling event. |
Violation |
None |
Report |
Hughson WWTF |
383599 |
R5-2012-0003 |
N |
| 1139006 |
03/21/2023 |
Order Conditions |
Wastewater spill from percolation/evaporation pond estimated at 700 gallons to the Salt Creek Drainage in violation of Discharge Prohibition A.1 of the WDRs. |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
N |
| 1118087 |
12/31/2022 |
Order Conditions |
The fourth quarter 2022 groundwater monitoring report shows that TDS, iron, and manganese were reported in groundwater in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
Lincoln Mill Site |
146409 |
95-094 |
N |
| 1118086 |
09/30/2022 |
Order Conditions |
The third quarter 2022 groundwater monitoring report shows that TDS, iron, and manganese were reported in groundwater in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
Lincoln Mill Site |
146409 |
95-094 |
N |
| 1122943 |
06/30/2023 |
Deficient Monitoring |
The quarterly monitoring reports indicate that: (a) during the third quarter 2021 groundwater monitoring well (MW) 10 was dry; (b) during the third and fourth quarter of 2022, MWs 3, 4, 5, 6, 7, 9 and 10 were dry; (b) during the first quarter 2023, MWs 4, 5, 8, 9 and 10 were dry and (c) during the second quarter 2023 MWs 5, 9 and 10 were dry. The significance of a dry well is the inability for Central Valley Water Board staff to evaluate compliance with groundwater limitations in the WDRs. The third quarter 2023 monitoring report shows that all 12 groundwater monitoring wells were sampled in accordance with the requirements in the MRP. |
Violation |
None |
Report |
Bronco Winery |
146526 |
96-247 |
N |
| 1118085 |
06/30/2022 |
Order Conditions |
The second quarter 2022 groundwater monitoring report shows that TDS, chloride, iron, manganese and arsenic were reported in groundwater in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
Lincoln Mill Site |
146409 |
95-094 |
N |
| 1123339 |
12/31/2021 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A and 3 during the fourth quarter 2021 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
N |
| 1118084 |
03/31/2022 |
Order Conditions |
The first quarter 2022 groundwater monitoring report shows that TDS, chloride, iron and manganese were reported in groundwater in violation of Groundwater Limitations E.2 of the WDRs. |
Violation |
None |
Report |
Lincoln Mill Site |
146409 |
95-094 |
N |
| 1144073 |
06/16/2025 |
Order Conditions |
Spill of undisinfected wastewater estimated at 30,000 gallons that was reported on 16 June 2025. The spill entered the adjacent property located east of the wastewater ponds and was the result of a breach in the overtopped berm due to the lack of capacity (Cal OES Control #25-2981): |
Violation |
None |
Report |
Arbuckle WWTP |
148673 |
93-208 |
N |
| 1123340 |
03/31/2021 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A and 3 during the first quarter 2022 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
N |
| 1123338 |
09/30/2021 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A. and 3 during the third quarter 2021 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
N |
| 1123337 |
06/30/2021 |
Order Conditions |
Nitrate Nitrogen reported in groundwater monitoring wells MWs 1A. and 3 during the second quarter 2021 monitoring event at concentrations above Groundwater Limitations E.1 of the WDRs. |
Violation |
None |
Report |
Hughson Nut, Inc. |
368692 |
R5-2014-0059 |
N |
| 1089465 |
02/17/2021 |
Order Conditions |
Abundant vegetation in the two percolation/evaporation ponds in violation of Discharge Specification B.6 of the WDRs. |
Violation |
N |
Inspection |
Princeton WWTP |
141225 |
94-013 |
Y |
| 1121282 |
09/21/2023 |
Order Conditions |
During the site inspection, Water Board staff was informed by the Discharger that the facility was currently undergoing a plant expansion to add another cooking line to the plant and that flows would increase to approximately 83,000 gallons per day. This expansion is because the Darling Ingredients Fresno plant will be closed by the end of 2023. Because Water Board staff was not notified of proposed expansion the Discharger is in violation of Provision I.12 of the WDRs which states: "As As described in the Standard Provisions, the Discharger shall report promptly to the Central Valley Water Board any material change or proposed change in the character, location, or volume of the discharge.? |
Violation |
N |
Inspection |
Darling Ingredients, Inc. Rendering Plant |
387815 |
R5-2012-0104 |
N |
| 1099316 |
06/30/2021 |
Order Conditions |
During the 2nd Quarter 2021 the Discharger exceeded total coliform groundwater limitation of 2.2 MPN/100 mL at the MW-1 and MW-2. |
Violation |
None |
Inspection |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1099323 |
02/28/2021 |
Order Conditions |
The discharge exceeded BOD. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1099324 |
03/31/2021 |
Order Conditions |
The discharge exceeded BOD. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1099329 |
05/31/2021 |
Order Conditions |
The discharge exceeded monthly TSS limitation of 40 mg/L. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1121280 |
09/21/2023 |
Order Conditions |
Water Board staff observed liquid waste and solids (waste byproducts) observed in wastewater pond 1A, which is an unlined pond in violation of Discharge Prohibition A.5 of the WDR, which states: ?Discharge of waste at a location or in a manner different from that described in the Findings is prohibited.? |
Violation |
None |
Inspection |
Darling Ingredients, Inc. Rendering Plant |
387815 |
R5-2012-0104 |
Y |
| 1121903 |
09/27/2023 |
Order Conditions |
During a 27 September 2023 site inspection Water Board staff observed an animal burrow in the northern levee of wastewater Pond 5 and the Discharger had been using material (soils/sludge) removed from the wastewater ponds to repair Pond 5 and raise the height of the levees of Ponds 1, 2, 3, 4 and 5 which back up to the dry creek bed. Discharge Specification B.10 of the WDRs states: ?Pond levees shall be protected from damage due to burrowing animals.? |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1121904 |
09/27/2023 |
Order Conditions |
During a 27 September 2023 site inspection Water Board staff was informed that the clarifier had not been operational. The District indicated that they were waiting on parts that had been ordered to make the repairs. This is a violation of Discharge Prohibitions A.2 and Provision E.2 of the WDRs, and General Provisions A.7 of the Standard Provisions and Reporting Requirements for WDRs. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1125137 |
11/29/2023 |
Order Conditions |
During a 29 November 2023 site inspection, Water Board staff observed freeboard measurements in the seven wastewater ponds at less than two feet with Ponds 1, 2 and 3 at freeboards of less 0.5 feet in violation of Discharge Specifications B.8 and B.9 of the WDRs. In addition, a non-functional clarifier was noted during the inspection in violation of Discharge Prohibitions A.2 and Provision E.2 of the WDRs, and General Provisions A.7 of the Standard Provisions and Reporting Requirements for WDRs. Also, sludge from the wastewater ponds was being used to repair pond 5 and raise the height of the levees of ponds 1, 2, 3, 4 and 5 in violation of Sludge Disposal Specification C.3 of the WDRs. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1111479 |
11/01/2022 |
Order Conditions |
Abundant vegetation was observed in a portion of the primary wastewater percolation/evaporation pond. |
Violation |
None |
Inspection |
Berryessa Pines WWTF |
148091 |
5-00-200 |
Y |
| 1125138 |
02/22/2024 |
Order Conditions |
During a 22 February 2024 site inspection, Water Board staff observed freeboard measurements in the seven wastewater ponds at less than two feet with Ponds 1, 2 and 3 at freeboards of less 0.5 feet in violation of Discharge Specifications B.8 and B.9 of the WDRs. In addition, a non-functional clarifier was noted during the inspection in violation of Discharge Prohibitions A.2 and Provision E.2 of the WDRs, and General Provisions A.7 of the Standard Provisions and Reporting Requirements for WDRs. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1099322 |
01/31/2021 |
Order Conditions |
The discharge exceeded BOD. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1099312 |
10/30/2020 |
Order Conditions |
During the 2nd Quarter 2020 the Discharger exceeded total coliform groundwater limitation of 2.2 MPN/100 mL at the MW-1. |
Violation |
None |
Inspection |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1121902 |
09/27/2023 |
Order Conditions |
During a 27 September 2023 site inspection Water Board staff observed freeboard measurements in the seven wastewater ponds at less than two feet with Ponds 2 and 3 Freeboard in the wastewater ponds observed at less than 2 feet in violation of Discharge Specification B.8 and B.9 of the WDRs. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1111120 |
09/27/2022 |
Order Conditions |
Vegetation (tules) surrounded the pond, and some duckweed was observed within the around the edges of pond 3 which is a violation of Discharge Specification B.7 of the WDRs. |
Violation |
None |
Inspection |
Kendall Jackson Wine Estates |
141956 |
91-218 |
Y |
| 1103499 |
11/17/2021 |
Order Conditions |
Vegetation and duckweed observed in effluent storage reservoir 2. Discharge Specification D.12 of the WDRs states that all ponds shall be managed to prevent breeding of mosquitos. Weeds shall be minimized through control of water depth, harvesting, or herbicides, and dead algae, vegetation, and debris shall not accumulate on the water surface. |
Violation |
None |
Inspection |
Rancho Murieta CSD WWT & Rec |
394415 |
R5-2014-0149 |
Y |
| 1099321 |
12/31/2020 |
Order Conditions |
The discharge exceeded BOD. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1119341 |
08/10/2023 |
Order Conditions |
Wastewater observed in a pond located adjacent to and east of the concrete settling basin. The pond is not described in the WDRs. In addition, wastewater observed ponding in a low-lying area next to the pond. Finally, aa sprinkler irrigation system with ponding wastewater observed on a portion of land just north of the pond that was being used to land apply wastewater. None of features are described in the WDRs. |
Violation |
None |
Inspection |
Sunrise Dryers LLC |
148095 |
5-00-205 |
Y |
| 1121046 |
08/10/2023 |
Unauthorized Discharge |
Discharge of walnut processing wastewater to an existing onsite pond without Waste Discharge Requirements (WDRs). Discharge of walnut processing wastewater onto adjacent farmland (walnut orchard) without WDRs. Discharge of walnut processing wastewater onto adjacent farmland (walnut orchard) without WDRs. |
Violation |
None |
Inspection |
Empire Nut Company |
454058 |
None |
Y |
| 1099313 |
12/31/2020 |
Order Conditions |
During the 4th Quarter 2020 the Discharger exceeded total coliform groundwater limitation of 2.2 MPN/100 mL at the MW-1, MW-2, MW-3. |
Violation |
None |
Inspection |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1099315 |
03/31/2021 |
Order Conditions |
During the 1st Quarter 2021 the Discharger exceeded total coliform groundwater limitation of 2.2 MPN/100 mL at the MW-1 and MW-3. |
Violation |
None |
Inspection |
NW Regional Waste Disp Fac |
148172 |
5-01-111 |
Y |
| 1099330 |
07/31/2021 |
Order Conditions |
The discharge exceeded monthly TSS limitation of 40 mg/L. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1118077 |
02/07/2023 |
Order Conditions |
Duckweed observed floating on the surface of wastewater pond 1 is a violation of Section B.5.cii of the General Order which states: ??Weeds shall be minimized through control of water depth, a shoreline synthetic liner, harvesting, or herbicides?? |
Violation |
None |
Inspection |
Rough and Ready Village |
416831 |
2014-0153-DWQ |
Y |
| 1126516 |
04/04/2024 |
Order Conditions |
The Clarifier remains offline and treatment to the wastewater ponds is being by-passed.in violation of Provision E.2 of the WDRs and General Provisions A.7 of the Standard Provisions and Reporting Requirements. This was observed during the 4 April 2024 site inspection, and previous inspections conducted on 27 September 2022, 29 November 2023, and 22 February 2024. Notice of Violation letters for these violations were issued on 16 November 2023 and 2 April 2024. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1126517 |
04/04/2024 |
Order Conditions |
Sludge removed from the wastewater pond stockpiled near the Clarifier. This was observed during the 4 April 2024 site inspection and previous site inspections conducted on conducted on 29 November 2023, and 22 February 2024. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1136811 |
10/02/2024 |
Order Conditions |
Vegetation observed in the wastewater ponds in violation of Discharge Specification B.8 of the WDRs. |
Violation |
None |
Inspection |
Berryessa SMI Opco Lp dba Pleasure Cove Marina |
146742 |
98-086 |
Y |
| 1099320 |
10/31/2020 |
Order Conditions |
The discharge exceeded BOD. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1099326 |
07/31/2021 |
Order Conditions |
The discharge exceeded BOD. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1099328 |
08/30/2021 |
Order Conditions |
The discharge exceeded monthly TSS limitation of 40 mg/L. |
Violation |
None |
Inspection |
Lake Cnty SD Kelseyville WWD No. 3 Kelseyville WWTF |
363816 |
R5-2009-0023 |
Y |
| 1118078 |
02/07/2023 |
Order Conditions |
Discharge Specification B.7 of the WDRs states ?Ponds shall be managed to prevent breeding of mosquitoes. In particular? dead algae, vegetation, and debris shall not accumulate on the water surface.? The duckweed observed floating on the surface of the aeration pond, and the vegetation observed in the wastewater pond next to the aeration pond are considered violations of the WDRs. |
Violation |
None |
Inspection |
Nevada City School of the Arts WWTF |
146905 |
97-256 |
Y |
| 1126515 |
04/04/2024 |
Order Conditions |
The freeboard levels in all seven wastewater ponds are at less than two feet with pond freeboards of less than 0.5 feet in wastewater ponds 1, 2 and 3. This was observed during the 4 April 2024 site inspection, and previous inspections conducted on 27 September 2022, 29 November 2023, and 22 February 2024. Notice of Violation letters for these violations were issued on 16 November 2023 and 2 April 2024. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1126674 |
03/07/2024 |
Order Conditions |
Duckweed vegetation was observed in the pond which is a violation of Discharge Specification B.13.c of the WDRs which states: ?The pond shall be managed to prevent breeding of mosquitos. In particular, dead algae, vegetation, and debris shall not accumulate on the water surface.? |
Violation |
None |
Inspection |
R-Ranch Campground WWTF |
146356 |
98-009 |
Y |
| 1111602 |
08/30/2022 |
Order Conditions |
Some debris observed floating on the surface of wastewater ponds 1 and 6. |
Violation |
None |
Inspection |
Arbuckle WWTP |
148673 |
93-208 |
Y |
| 1099365 |
11/09/2021 |
Unauthorized Discharge |
Disposal of wastewater at non-permitted facility |
Violation |
N |
Complaint |
K&D Enterprises, Unke, Inc. |
446398 |
None |
Y |
| 1099364 |
12/15/2021 |
Unauthorized Discharge |
Shipping of wastewater to a non-permitted facility. |
Violation |
N |
Complaint |
Stericycle, Inc |
446397 |
None |
Y |
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