| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1139033 |
01/02/2025 |
LREP |
Annual SMR ( PROGRPT ) (Advanced Water Treatment Fac) report for 2025 (2523321) was due on 01-JAN-25 |
|
Violation |
B |
Report |
| 1123271 |
01/02/2024 |
LREP |
Annual SMR ( PROGRPT ) (Advanced Water Treatment Fac) report for 2024 (2523303) was due on 01-JAN-24 |
|
Violation |
B |
Report |
| 1119144 |
05/31/2023 |
DMON |
The monitoring of p,p-DDT and p,p-DDD are monthly requirements. Both analytes are analyzed by EPA method 608.3 and were missed in May. The analyst referred to the TIWRP NPDES permit and misunderstood the requirements. |
The analyzing lab has clarified and reiterated the requirements outlined in the permit and sample chain-of-custodies to all staff. |
Violation |
U |
eSMR |
| 1118429 |
04/07/2023 |
CAT2 |
Chlorine, Total Residual Daily Maximum limit is 0.1 mg/L and reported value was 0.17 mg/L at EFF-001. |
In the short-term, a new standard operating procedure will be created that instructs plant staff to operate the sodium bisulfite system in manual mode when work is taking place on the dichlorination system. The long-term corrective action that the plant is evaluating is to modify the programming so the sodium bisulfite system has a minimum dose based on the number of reverse osmosis trains are online, which will serve as a backup to the existing primary control method which is based on reverse osmosis concentrate ORP. |
Violation |
U |
eSMR |
| 1112240 |
01/02/2023 |
LREP |
Annual SMR ( PROGRPT ) (Advanced Water Treatment Fac) report for 2023 (2523285) was due on 01-JAN-23 |
|
Violation |
B |
Report |
| 1111248 |
09/28/2022 |
DMON |
The total flow on September 28 is Not Representative and will not be reported in this Self-Monitoring Report. It is a daily required parameter. There were communication issues with the control system and the database after a cutover to a new faceplate and the data could not be recovered. |
N/A |
Violation |
B |
eSMR |
| 1109954 |
08/29/2022 |
CTOX |
Chronic Toxicity Maximum Daily (MDEL) limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
N/A |
Violation |
B |
eSMR |
| 1102124 |
03/02/2022 |
LREP |
Annual SMR ( PRETRPT ) report for 2021 (2362621) was due on 01-MAR-22 |
|
Violation |
B |
Report |
| 1102969 |
01/04/2022 |
DMON |
On January 4 an equipment communications issue for part of the day led to inaccurate data for influent flow. It was resolved that day, but there no instantaneous peak flow can be reported for the influent that day. |
NA |
Violation |
U |
eSMR |
| 1099060 |
01/02/2022 |
LREP |
Annual SMR ( PROGRPT ) (Advanced Water Treatment Fac) report for 2022 (2523267) was due on 01-JAN-22 |
|
Violation |
B |
Report |
| 1100567 |
11/01/2021 |
DMON |
On 11/1/2021 the effluent sample was improperly preserved for oil and grease analysis. The pH was greater than two, and therefor invalid. This was discovered on 11/9/2021, and as this is a weekly monitoring requirement, no resample for that week was possible. |
Staff were reminded to follow proper sample preservation procedure. |
Violation |
U |
eSMR |
| 1096401 |
08/24/2021 |
OEV |
pH Instantaneous Minimum limit is 6.5 SU and reported value was 3.3 SU at EFF-001. |
To prevent reoccurrence, TIWRP has changed Lockout Blackout procedures to isolate the chemical discharge line during maintenance. Additionally, chemical pumps will be uncoupled from their motors for rotation testing to prevent unintentional release of chemicals. |
Violation |
B |
eSMR |
| 1089858 |
02/21/2021 |
DMON |
The Los Angeles Harbor testing of HW-20 and HW-62 for chronic toxicity, and the concurrent effluent chronic toxicity testing, occurred late in February, with samples collected on the 22nd for the Harbor sites and the 21st for effluent. The reference toxicant test for this batch of samples failed, rendering the toxicity results invalid, and a re-sampling could not occur before the end of the month. This is a deficient monitoring violation as effluent chronic toxicity testing is required monthly. |
The March chronic toxicity testing was able to be scheduled earlier, on March 9th. |
Violation |
B |
eSMR |
| 1077959 |
05/28/2020 |
DMON |
The City of Los Angeles was unable to monitor water quality parameters during the April - June quarter in the Santa Monica Bay and Los Angeles Harbor. Equipment necessary for profiling and sampling was unavailable due to Coronavirus closures. See attached letter to Regional Board dated June 30 titled ¿Unable to perform quarterly offshore and harbor water quality monitoring (April ¿ June)¿. Conductivity-temperature-depth (CTD) profiler was out of service and under repair at Sea-Bird Facility in Washington State, which was shut down during the pandemic. The CTD profiler is used for both discrete and surface sampling. Without the use of a CTD for tracking and delineating the plume, surface sample collection involving ammonia and microbiological samples would not be meaningful. |
EMD is seeking relief of this compliance requirement for the affected quarter; the CTD has since been repaired, returned to EMD, and is in service
On July 6, EMD conducted an LAH Quarterly survey (without the CTD) for ammonia and microbiology only at the 12 required stations. This is a good-faith effort for missing the second quarter survey due to the concern and inquiry of RWQCB. All 12 stations E. Coli results are <10 MPN/100mL, so they did not exceed single sample limitations.
|
Violation |
U |
eSMR |
|
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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