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. |
1147785 |
09/02/2025 |
CAT1 |
Total Dissolved Solids (TDS) 10 Sample 90th Percentile limit is 80 mg/L and repo |
Violation |
N |
Report |
Tahoe Donner Ski Area |
147685 |
00-045 |
N |
1147783 |
07/21/2025 |
CAT1 |
Total Dissolved Solids (TDS) 10 Sample 90th Percentile limit is 80 mg/L and repo |
Violation |
N |
Report |
Tahoe Donner Ski Area |
147685 |
00-045 |
N |
1147461 |
01/20/2025 |
Late Report |
Report due 12/15/2024 was received 01/20/2025 |
Violation |
N |
Report |
Resort at Squaw Creek |
366000 |
R6T-2009-0024 |
N |
1147208 |
08/05/2025 |
Deficient Monitoring |
For EFF-001, RSW-001, and RSW-002, a hardness test was not completed on the mont |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
N |
1147207 |
08/26/2025 |
Deficient Monitoring |
Wet lab discovered that their fecal bath was operating 1 degree C above the requ |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
N |
1147103 |
06/05/2025 |
Unauthorized Discharge |
Per TKPOA Water Quality, Weed Harvesting raft broke a hydaulic line on 6/5 resul |
Violation |
N |
Complaint |
Tahoe Keys POA |
397482 |
R6T-2014-0059 |
Y |
1146961 |
06/09/2025 |
CAT1 |
Nitrogen, Total (as N) Monthly Average limit is 10 mg/L and reported value was 1 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1146960 |
06/09/2025 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10.0 mg/L and reported value was |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1146958 |
06/11/2025 |
CAT1 |
Chloride Monthly Average limit is 5 mg/L and reported value was 32 mg/L. |
Violation |
N |
Report |
Woodfords Indian Colony WTDF |
145322 |
95-021 |
N |
1146918 |
03/26/2025 |
CAT1 |
Chloride Monthly Average limit is 5 mg/L and reported value was 33 mg/L. |
Violation |
N |
Report |
Woodfords Indian Colony WTDF |
145322 |
95-021 |
N |
1146895 |
11/06/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 0.5 mg/L and reported value was 0 |
Violation |
N |
Report |
Woodfords Indian Colony WTDF |
145322 |
95-021 |
N |
1146841 |
11/06/2024 |
CAT1 |
Chloride Monthly Average limit is 5.0 mg/L and reported value was 10.0 mg/L. |
Violation |
N |
Report |
Woodfords Indian Colony WTDF |
145322 |
95-021 |
N |
1146360 |
11/05/2024 |
Groundwater |
Uranium detected above the MCL in 13 wells, perchlorate detected above the MCL i |
Violation |
None |
Report |
Sierra Army Depot SWDS |
145262 |
93-102 |
Y |
1146206 |
06/02/2025 |
Groundwater |
Detections of volatile organic compounds and semi-volatile organic compounds in |
Violation |
N |
Report |
Bass Hill Sanitary Landfill (Lassen County Class III Landfill) |
148374 |
01-045 |
Y |
1146087 |
01/30/2025 |
CAT1 |
Nitrogen, Total (as N) Monthly Average limit is 10 mg/L and reported value was 1 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
Y |
1146066 |
08/02/2025 |
Late Report |
Semi-Annual SMR ( MONNPDES ) report for H1 2025 (2530835) was due on 01-AUG-25 |
Violation |
None |
Report |
Hot Creek Hatchery NPDES |
444177 |
R6V-2021-0014 |
N |
1145988 |
07/29/2025 |
OEV |
Total Coliform 7-Day Average (Mean) limit is 23 MPN/100 mL and reported value wa |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
N |
1145965 |
07/30/2025 |
Deficient Reporting |
Failed to report the types of waste deposited into the waste management unit. Vi |
Violation |
N |
Report |
Sierra Army Depot SWDS |
145262 |
93-102 |
N |
1145964 |
07/30/2025 |
Deficient Reporting |
Failed to report the type of groundwater pump used for purging, the location of |
Violation |
N |
Report |
Sierra Army Depot SWDS |
145262 |
93-102 |
N |
1145961 |
07/30/2025 |
Deficient Reporting |
Failed to report the velocity of groundwater flow. Violation of Board Order 6-93 |
Violation |
N |
Report |
Sierra Army Depot SWDS |
145262 |
93-102 |
N |
1145913 |
08/12/2025 |
Sanitary Sewer Overflow/Spill/ |
Category 4 spill on Lester St. ~40 gallons from surcharging sewer main. No water |
Violation |
None |
Complaint |
So. Tahoe Public Utility Dist. CS |
301290 |
2022-0103-DWQ |
N |
1145912 |
04/01/2025 |
Groundwater |
Exceeded background concentrations and the California Division of Drinking Water |
Violation |
N |
Report |
Sierra Army Depot SWDS |
145262 |
93-102 |
Y |
1145911 |
04/01/2025 |
Deficient Monitoring |
Failed to sample eight wells for volatile organic compounds during the first sem |
Violation |
N |
Report |
Sierra Army Depot SWDS |
145262 |
93-102 |
Y |
1145908 |
07/30/2025 |
Deficient Reporting |
Failed to report the percentage of total volume of landfill used. Violation of B |
Violation |
N |
Report |
Sierra Army Depot SWDS |
145262 |
93-102 |
Y |
1145211 |
06/16/2025 |
Deficient Monitoring |
Requirement I.E.1.&2. Missing locations and dates of application of snow conditi |
Violation |
N |
Report |
Northstar At Tahoe |
145260 |
93-089 |
Y |
1145192 |
01/20/2025 |
CAT1 |
Nitrate, Total (as N) Monthly Maximum limit is 0.030 mg/L and reported value was |
Violation |
N |
Report |
Resort at Squaw Creek |
366000 |
R6T-2009-0024 |
N |
1145191 |
06/30/2025 |
CAT1 |
Nitrogen, Total (as N) Monthly Maximum limit is 10 mg/L and reported value was 1 |
Violation |
N |
Report |
Susanville MHP |
399608 |
R6T-2015-0001 |
N |
1145097 |
03/19/2025 |
CAT1 |
Total Suspended Solids (TSS) Monthly Maximum limit is 45.0 mg/L and reported val |
Violation |
N |
Report |
USMC MWTC Coleville Housing WWTF |
378970 |
R6T-2011-0020 |
Y |
1145038 |
06/08/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Pump Station Failure - Controls caused 7200 gallons of s |
Violation |
None |
SSO |
Markleeville Wstwtr Trtmnt Sys CS |
301282 |
2022-0103-DWQ |
N |
1144934 |
02/04/2025 |
Deficient Reporting |
Lack of required samples |
Violation |
N |
Report |
Village at Squaw Phase II SW |
131608 |
03-002 |
N |
1144836 |
06/03/2025 |
OEV |
Total Coliform 7-Day Average (Mean) limit is 23 CFU/100 mL and reported value wa |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
N |
1144499 |
06/18/2025 |
Late Report |
Due 05/02/2025 submitted 06/18/2025 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1144498 |
06/18/2025 |
Late Report |
Due 02/15/2024 was submitted 06/18/2025 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1144497 |
06/18/2025 |
Late Report |
Due 02/01/2025 submitted 06/18/2025 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1144496 |
06/18/2025 |
Late Report |
Due 11/01/2024 was submitted 06/18/2025 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1144495 |
06/18/2025 |
Late Report |
Due 11/01/2024 was received 06/18/2025 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1144494 |
06/18/2025 |
Late Report |
Due 05/02/2024 submitted 06/19/2025 |
Violation |
N |
Report |
Honey Lake Safety Roadside Rest Area |
400195 |
R6T-2016-0034 |
N |
1144261 |
03/17/2025 |
Unauthorized Discharge |
325 gallons of sodium hydroxide spilled. Release was stopped for line repair. On |
Violation |
N |
Report |
Mountain Pass Mine & Mill Ops |
377626 |
R6V-2010-0047 |
N |
1144231 |
06/08/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Pump Station Failure - Controls caused 7200 gallons of s |
Violation |
None |
SSO |
Markleeville Wstwtr Trtmnt Sys CS |
301282 |
2022-0103-DWQ |
N |
1144160 |
06/11/2025 |
Deficient Monitoring |
Flow records not provided |
Violation |
N |
Report |
Woodfords Indian Colony WTDF |
145322 |
95-021 |
N |
1143990 |
05/20/2025 |
OEV |
Total Coliform 7-Day Average (Mean) limit is 23 MPN/100 mL and reported value wa |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
Y |
1143294 |
04/29/2025 |
Deficient Monitoring |
Did not test for phosphorus and hardness. |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
Y |
1143020 |
01/26/2025 |
Late Report |
4Q24 report due 1/15/25; not uploaded to GeoTracker til 4/29/25 (late report vio |
Violation |
N |
Report |
Green Valley Foods |
416725 |
None |
N |
1143019 |
10/26/2024 |
Late Report |
3Q24 report due 10/15/24, not uploaded to GeoTracker til 4/29/25 (late report vi |
Violation |
N |
Report |
Green Valley Foods |
416725 |
None |
N |
1142985 |
02/28/2025 |
Late Report |
The Annual 2024 report was submitted 44 days late on 2/28/2025 with a due date o |
Violation |
N |
Report |
Leavitt Lake Sewage Treatment Ponds |
145366 |
96-018 |
Y |
1142965 |
04/11/2025 |
Groundwater |
PMCL for Nitrate as N limit is 10 mg/L and reported value was 74 mg/L at Well No |
Violation |
N |
Report |
Leavitt Lake Sewage Treatment Ponds |
145366 |
96-018 |
Y |
1141598 |
03/05/2025 |
Late Report |
Late Report Violation. The Aug 2024 - Jan 2025 Semi-Annual report was submitted |
Violation |
N |
Report |
Eagle Lake Rec Area |
377476 |
R6T-2010-0056 |
Y |
1141223 |
11/30/2024 |
Deficient Monitoring |
Missing requirements I.A.3. November freeboard measurement, I.B. November Total |
Violation |
N |
Report |
Leavitt Lake Sewage Treatment Ponds |
145366 |
96-018 |
Y |
1140750 |
11/25/2024 |
Late Report |
Report due 11/15/24; received in Geotracker 1/4/25. and via email 1/7/25. |
Violation |
N |
Report |
Green Valley Foods |
383647 |
R6V-2012-0006 |
N |
1140536 |
02/24/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Fats, Oil and Grease (FOG) caused 70 gallons of sewage t |
Violation |
None |
SSO |
Susanville Sanitary District CS |
301298 |
2022-0103-DWQ |
Y |
1140008 |
10/31/2024 |
OEV |
Flow Daily Average (Mean) limit is 7000 GPD and reported value was 10252 GPD. |
Violation |
N |
Report |
Desolation Hotel Hope Valley |
132690 |
R6T-2004-0028 |
Y |
1139568 |
01/15/2025 |
Deficient Reporting |
Missed SMR reporting in 2024 |
Violation |
N |
Report |
Grover Hot Springs |
366010 |
R6T-2009-0025 |
Y |
1138645 |
12/10/2024 |
Late Report |
Draft 2Q24 domestic well sampling report received 9/23/24; revised report reques |
Violation |
N |
Report |
Green Valley Foods |
416725 |
None |
N |
1138640 |
12/19/2024 |
Late Report |
Submitted 34 days late on December 19, 2024. |
Violation |
N |
Report |
Eagle Lake Ranger Station |
144976 |
92-032 |
Y |
1138581 |
10/22/2024 |
Order Conditions |
Threatened pollution to groundwater and surface water from discharges of leachat |
Violation |
None |
Inspection |
Bass Hill Sanitary Landfill (Lassen County Class III Landfill) |
148374 |
01-045 |
Y |
1138570 |
10/22/2024 |
Order Conditions |
Discharge of solid waste outside the landfill boundary. Violation of Board Order |
Violation |
None |
Inspection |
Bass Hill Sanitary Landfill (Lassen County Class III Landfill) |
148374 |
01-045 |
Y |
1138528 |
10/29/2024 |
Unauthorized Discharge |
On October 28, 2024, a PG&E gas crew was in the process of assessing and repairi |
Violation |
N |
Report |
Pacific Gas & Electric Company - Natural Gas Utilities |
418337 |
2017-0029-DWQ |
N |
1137154 |
12/10/2024 |
Late Report |
SEL email sent 12/10/24 re late report violation (Sept 2024 report was due 10/15 |
Violation |
N |
Report |
Green Valley Foods |
383647 |
R6V-2012-0006 |
N |
1137149 |
10/30/2024 |
Deficient Monitoring |
Requirement IV.C. Missing pH measurements from Ponds 2 and 3. |
Violation |
N |
Report |
Spalding Tract Sewer System |
307579 |
R6T-2006-0020 |
Y |
1136465 |
11/21/2024 |
Late Report |
Report 2 30-day periods late |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136463 |
11/21/2024 |
Late Report |
Report 5 30-day period late |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136458 |
11/21/2024 |
Late Report |
Report 8 30-day period late |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136451 |
11/21/2024 |
Late Report |
Report 12 30-day periods late |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136447 |
11/21/2024 |
Late Report |
Report 15 30-day periods late |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136440 |
11/21/2024 |
Late Report |
Report 18 30-day periods late |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136437 |
11/21/2024 |
Late Report |
Report 22 30-day periods late as of 11/21/2024 |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136436 |
11/21/2024 |
Late Report |
Report 25 30-day periods late as of 11/21/2024 |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136435 |
11/21/2024 |
Late Report |
Report 28 30-day periods late as of 11/21/2024 |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136420 |
11/21/2024 |
Late Report |
Late for 31 30-day periods as of 11/21/2024 |
Violation |
N |
Report |
Plant GW Treatment System - National Cement |
445491 |
R6T-2016-0011 |
Y |
1136005 |
10/31/2024 |
CAT1 |
BOD5 @ 20 Deg. C, Percent Removal 30-Day Average limit is 85 % and reported valu |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
Y |
1135998 |
10/29/2024 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 45 m |
Violation |
N |
eSMR |
Susanville Sanitary District WWTP |
350221 |
R6T-2008-0022 |
Y |
1135236 |
10/31/2024 |
Late Report |
Submitted October 31, 2024 with a due date of October 15, 2024. 16 days late. |
Violation |
N |
Report |
USMC-MWTC WWTC |
145259 |
93-072 |
Y |
1134824 |
10/17/2024 |
Basin Plan Prohibition |
discharges of hazardous materials, violation of R6 BPP#3 |
Violation |
None |
Inspection |
Washington Anita Murphy Property |
458944 |
None |
Y |
1134823 |
10/17/2024 |
Other Codes |
Cannabis cultivation w/o enrollment (WC 13260 violation), discharges of wastes a |
Violation |
None |
Inspection |
Washington Anita Murphy Property |
458944 |
None |
Y |
1134822 |
10/17/2024 |
Basin Plan Prohibition |
discharges of hazardous materials, violation of R6 BPP#3 |
Violation |
None |
Inspection |
Magdi Hanna Property |
458942 |
None |
Y |
1134821 |
10/17/2024 |
Other Codes |
Active cannabis cultivation without enrollment (WC 13260), discharges of wastes |
Violation |
None |
Inspection |
Magdi Hanna Property |
458942 |
None |
Y |
1134820 |
10/17/2024 |
Basin Plan Prohibition |
Discharges of hazardous materials, violation of R6 BPP#3 |
Violation |
None |
Inspection |
Maria Rodriguez Property |
458939 |
None |
Y |
1134819 |
10/17/2024 |
Other Codes |
cannabis cultivation w/o enrollment (WC violation 13260), discharges of wastes ( |
Violation |
None |
Inspection |
Maria Rodriguez Property |
458939 |
None |
Y |
1134817 |
10/17/2024 |
Basin Plan Prohibition |
Discharges of hazardous materials, R6 BPP#3 |
Violation |
None |
Inspection |
Arturo Medina Property |
448121 |
None |
Y |
1134816 |
10/17/2024 |
Other Codes |
Illicit cannabis cultivation w/o enrollment (WC violation 13260), discharges of |
Violation |
None |
Inspection |
Arturo Medina Property |
448121 |
None |
Y |
1134815 |
10/17/2024 |
Basin Plan Prohibition |
Discharge of hazardous materials, R6 BPP#3 violation |
Violation |
None |
Inspection |
Rachel Gutierrez |
458935 |
None |
Y |
1134814 |
10/17/2024 |
Other Codes |
Active illicit cannabis cultivation w/o enrollment (WC 13260 violation); dischar |
Violation |
None |
Inspection |
Rachel Gutierrez |
458935 |
None |
Y |
1134813 |
10/17/2024 |
Basin Plan Prohibition |
Discharge of hazardous materials, violation of R6 BPP#3 |
Violation |
None |
Inspection |
Rigoberto Valencia Property |
458933 |
None |
Y |
1134812 |
10/17/2024 |
Other Codes |
13260, 13264 violations for active cultivation w/o enrollment, and actual discha |
Violation |
None |
Inspection |
Rigoberto Valencia Property |
458933 |
None |
Y |
1134809 |
10/17/2024 |
Basin Plan Prohibition |
Discharge of hazardous materials, violation of R6 BPP#3 |
Violation |
None |
Inspection |
Pedro Castro Property |
458931 |
None |
Y |
1134808 |
10/17/2024 |
Other Codes |
Discharge of wastes consistent with illicit cannabis cultivation. Cannabis plant |
Violation |
None |
Inspection |
Pedro Castro Property |
458931 |
None |
Y |
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