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. |
1125037 |
02/02/2024 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.34 mg/L and reported value was 0.55 mg/L at EFF-001. |
Violation |
N |
eSMR |
San Mateo WWTP |
454700 |
R2-2023-0017 |
N |
1124788 |
02/15/2024 |
Deficient Reporting |
2023 Annual Report did not contain information about violations that occurred in 2023, including unauthorized discharge in January, or late Q2, Q3, Q4, and Annual reports. Report did not include a comprehensive discussion of performance and compliance, summaries of monitoring data, wastewater facilities review and evaluation status report, annual O&MM review status report, or annual BMP Plan evaluation. |
Violation |
None |
Report |
CEMEX Construction Materials Pacific, LLC ELIOT Site |
402857 |
R2-2020-0028 |
Y |
1124787 |
02/16/2024 |
Late Report |
2023 Annual Report was due on February 15, 2024, but was not submitted until February 29, 2024, after multiple email reminders. |
Violation |
None |
Report |
CEMEX Construction Materials Pacific, LLC ELIOT Site |
402857 |
R2-2020-0028 |
Y |
1124786 |
01/31/2024 |
Late Report |
Q4 2023 report was due January 30, 2024, but was not submitted until February 29, 2024, after multiple reminder emails. |
Violation |
None |
Report |
CEMEX Construction Materials Pacific, LLC ELIOT Site |
402857 |
R2-2020-0028 |
N |
1124537 |
10/01/2023 |
Unauthorized Discharge |
BLPOA used an unauthorized product, PondZilla Pro California, as an adjuvant with diquat in 2023. Exact date(s) currently unknown. |
Violation |
None |
Complaint |
Belvedere Lagoon POA - Aquatic Pesticides |
340978 |
2013-0002-DWQ |
Y |
1124327 |
12/31/2023 |
Deficient Monitoring |
Monthly monitoring of receiving water (Alameda Creek, upstream and downstream) missed for November and December 2023. |
Violation |
None |
Report |
DeSilva Gates Aggregates |
410097 |
R2-2020-0028 |
N |
1124191 |
01/23/2024 |
Deficient Monitoring |
The Plant performed a titration but failed to properly record the data during the 0500 hour. |
Violation |
N |
eSMR |
San Mateo WWTP |
454700 |
R2-2023-0017 |
N |
1124190 |
01/15/2024 |
Deficient Monitoring |
failure to perform the required hourly titration during the 0600 hour. |
Violation |
N |
eSMR |
San Mateo WWTP |
454700 |
R2-2023-0017 |
N |
1122963 |
11/26/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0 mg/L and reported value was 0.56 mg/L at EFF-001. |
Violation |
N |
eSMR |
San Mateo WWTP |
421205 |
R2-2018-0016 |
N |
1122962 |
11/01/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0 mg/L and reported value was 0.1 mg/L at EFF-001. |
Violation |
N |
eSMR |
San Mateo WWTP |
421205 |
R2-2018-0016 |
N |
1122363 |
10/30/2023 |
Late Report |
Quarter 3 (2023) report was due on October 30,2023, and was submitted on November 7, 2023. This is not an MMP-able violation because it is a no-discharge report. |
Violation |
N |
Report |
CEMEX Construction Materials Pacific, LLC ELIOT Site |
402857 |
R2-2020-0028 |
N |
1121955 |
10/27/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0 mg/L and reported value was 0.055 mg/L at EFF-001. |
Violation |
N |
eSMR |
San Mateo WWTP |
421205 |
R2-2018-0016 |
N |
1121954 |
10/12/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0 mg/L and reported value was 0.25 mg/L at EFF-001. |
Violation |
N |
eSMR |
San Mateo WWTP |
421205 |
R2-2018-0016 |
N |
1121048 |
09/13/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.0 mg/L and reported value was 1.35 mg/L at EFF-001. |
Violation |
N |
eSMR |
San Mateo WWTP |
421205 |
R2-2018-0016 |
N |
1120009 |
07/18/2023 |
Late Report |
Annual stormwater report (2022-2023) due 7/17/23; received 9/5/23. |
Violation |
None |
Report |
4501 Tidewater Ave, Oakland |
402858 |
R2-2020-0028 |
Y |
1119977 |
07/18/2023 |
Late Report |
Annual stormwater report (2022-2023) was due July 17, 2023, and was submitted on September 5, 2023. |
Violation |
None |
Report |
Hanson Aggregates/ Mission Valley Rock |
402861 |
R2-2020-0028 |
Y |
1119824 |
07/31/2023 |
Late Report |
2023 Q2 SMR was due on July 31, 2023, but was received on September 5, 2023. It was a report of no discharge. |
Violation |
None |
Report |
CEMEX Construction Materials Pacific, LLC ELIOT Site |
402857 |
R2-2020-0028 |
Y |
1118641 |
06/27/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.0 mg/L and reported value was 0.1 mg/L at EFF-001. |
Violation |
N |
eSMR |
San Mateo WWTP |
421205 |
R2-2018-0016 |
Y |
1117772 |
06/05/2023 |
CAT1 |
Settleable Solids Maximum Daily (MDEL) limit is 0.2 ml/L/hr and reported value was 1.3 ml/L/hr. |
Violation |
None |
Report |
Hanson Aggregates/ Mission Valley Rock |
402861 |
R2-2020-0028 |
Y |
1117595 |
05/26/2023 |
OEV |
Turbidity Maximum Daily (MDEL) limit is 50 NTU and reported value was 110 NTU. |
Violation |
N |
Report |
Hanson Aggregates SF Pier 92 Sand Yard |
402859 |
R2-2020-0028 |
Y |
1117103 |
05/18/2023 |
Unauthorized Discharge |
One of the facility's ponds (Tank Farm Pond) overflowed onto a bermed road. The water overtopped the berm and flowed down the adjacent hillside to Alameda Creek. Part of the berm was sloughed off and carried with the water towards the creek. Water also reached an area called "Creek Crossing" where Calaveras and Alameda Creek intersect. The quantity of water that was discharged is unknown. MVR suspects that the discharge was caused by non-synchronized pumps. Estimated quantity of discharge: 10,007 gallons. |
Violation |
None |
Report |
Hanson Aggregates/ Mission Valley Rock |
402861 |
R2-2020-0028 |
Y |
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