| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1127322 |
02/29/2024 |
DMON |
The flow meter discharging into Balboa Lake stopped working on July 26, 2023. Effluent flow is a continuous monitoring requirement reported on a daily basis for the daily average flow and daily maximum flow. The daily average effluent flows being reported for effluent discharge starting on July 25, 2023 are approximate values. The flow to Balboa Lake is being estimated based on pump capacity. Until the meter is replaced, the reported daily average flow for the effluent will continue to be an approximate value. Due to the Balboa Lake meter not working, the daily maximum for the effluent flow cannot be determined, these have been reported as an instrument failure (IF) since July 25, 2023. This IF resulted in one deficient monitoring violation for February 2024. |
N/A |
Violation |
U |
eSMR |
| 1125965 |
01/31/2024 |
DMON |
The flow meter discharging into Balboa Lake stopped working on July 26, 2023. Effluent flow is a continuous monitoring requirement reported on a daily basis for the daily average flow and daily maximum flow. The daily average effluent flows being reported for effluent discharge starting on July 25, 2023 are approximate values. The flow to Balboa Lake is being estimated based on pump capacity. Until the meter is replaced, the reported daily average flow for the effluent will continue to be an approximate value. Due to the Balboa Lake meter not working, the daily maximum for the effluent flow cannot be determined, these have been reported as an instrument failure (IF) since July 25, 2023. This IF resulted in one deficient monitoring violation for January 2024. |
N/A |
Violation |
U |
eSMR |
| 1122500 |
09/30/2023 |
DMON |
For the monthly effluent requirements there was a deficient monitoring violation for carbon tetrachloride. Per the DCTWRP permit Order No. R4-2022-0341 effective February 1, 2023, carbon tetrachloride is a monthly required constituent with an effluent limit of 0.5 ug/L. It was not analyzed in the month of September. This resulted in one deficient monitoring violation. |
In order to prevent this type of recurrence in the future, there will be better organization of samples in the refrigerators by laboratory personnel, as well as starting a sample status log to keep track of received samples in the laboratory. |
Violation |
B |
eSMR |
| 1120979 |
09/29/2023 |
LREP |
Once Only OneTime ( TECHRPT ) (Local Limit Evaluation Report) report for 2023/02/01 (2682273) was due on 28-SEP-23 |
|
Violation |
B |
Report |
| 1119566 |
07/16/2023 |
LREP |
Once Only OneTime ( PROGRPT ) (Compliance Sched - TAC progress report) report for 2023/02/01 (2754172) was due on 15-JUL-23 |
|
Violation |
B |
Report |
| 1119966 |
06/30/2023 |
DMON |
For the monthly effluent requirements there was a deficient monitoring violation for pentachlorophenol. Per the DCTWRP permit Order No. R4-2022-0341 effective February 1, 2023, pentachlorophenol is a monthly required constituent with an effluent limit of 1.0 ug/L. Due to the in-house method not being sensitive enough to determine compliance with the new effluent limit, monthly analysis has been contracted out. The contract lab extracted the sample outside the allowed holding time. The contract lab sent out an update once the month of June had passed, so resampling was not possible. This resulted in a deficient monitoring violation for pentachlorophenol. |
N/A |
Violation |
B |
eSMR |
| 1117225 |
05/16/2023 |
LREP |
Once Only OneTime ( PROGRPT ) (Compliance Schedule - Technical Advisory Committee and initiate technical workplan) report for 2023/02/01 (2684019) was due on 15-MAY-23 |
|
Violation |
B |
Report |
| 1118453 |
04/30/2023 |
DMON |
For the monthly effluent requirements there was a deficient monitoring violation for carbon tetrachloride. Per the DCTWRP permit Order No. R4-2022-0341 effective February 1, 2023, carbon tetrachloride is a monthly required constituent with an effluent limit of 0.5 ug/L. In February and March, it was analyzed at the correct frequency, but not analyzed in April. Typically, two samples, one acidified and one not, are required for full EPA 624.1 analysis. The analyst was unaware of the effluent limitation on a single compound and assumed there would be a second sample for routine analysis, and did not analyze the sample. This resulted in one deficient monitoring violation. |
The lab has communicated to all staff that monthly samples from DCTWRP for carbon tetrachloride analysis are expected and must be run immediately for determination of compliance with the newly implemented effluent limitation. |
Violation |
B |
eSMR |
| 1117755 |
03/31/2023 |
CAT2 |
Selenium, Total Recoverable Monthly Average limit is 3.9 ug/L and reported value was 4.354 ug/L at EFF-001A. |
N/A |
Violation |
B |
eSMR |
| 1109951 |
08/13/2022 |
DMON |
For the weekly lake requirements there were deficient monitoring violations for stations RSW-4(4) and RSW-W2(W-2). The sample for both RSW-4(4) and RSW-W2(W-2) on August 12 were not analyzed for total phosphorous, organic phosphorous, and condensed phosphorous within their holding time. On Thursday August 4 the boat used to collect samples broke its motor and propeller while attempting to collect sediment samples. The following week, the boat was still not repaired and the Department of Parks and Recreation staff collected the water quality sample on August 9 from the shoreline which was believed to be an alternate site. Correspondence was sent to the LA-RWQCB on August 9 notifying them that this location was used. The Regional Board replied on August 11 that the alternative site used in the past needs prior approval, so that sample was deemed not representative. Finally, the boat was repaired on Thursday August 11 and a sample was collected mid-lake at the permitted location on August 12. The laboratory had to scramble to conduct analysis for the compounds that have short holding times, such as the nutrients (nitrogen series and phosphorus series). Due to staff shortages, an analyst was pulled from another laboratory to conduct phosphate analysis. This analyst was under the impression that he was only coming in on Saturday to perform ortho-phosphorus on overtime. The analysis for total phosphorous, organic phosphorous, and condensed phosphorous were not analyzed that day and only discovered when the sample was past holding time. The root cause of this missed analysis is a lack of communication combined with staff shortages. This event also happened when the supervisor of the analysis lab was on vacation. This resulted in a deficient monitoring violation for stations RSW-4(4) and RSW-W2(W-2). |
To ensure this does not happen again, the analysts and the lab have been made aware that all of the phosphorus constituents need to be analyzed at the same time. Communication will be strengthened during off-schedule analysis to ensure nothing is missed. |
Violation |
U |
eSMR |
| 1109952 |
08/13/2022 |
DMON |
For the weekly lake requirements there were deficient monitoring violations for stations RSW-4(4) and RSW-W2(W-2). The sample for both RSW-4(4) and RSW-W2(W-2) on August 12 were not analyzed for total phosphorous, organic phosphorous, and condensed phosphorous within their holding time. On Thursday August 4 the boat used to collect samples broke its motor and propeller while attempting to collect sediment samples. The following week, the boat was still not repaired and the Department of Parks and Recreation staff collected the water quality sample on August 9 from the shoreline which was believed to be an alternate site. Correspondence was sent to the LA-RWQCB on August 9 notifying them that this location was used. The Regional Board replied on August 11 that the alternative site used in the past needs prior approval, so that sample was deemed not representative. Finally, the boat was repaired on Thursday August 11 and a sample was collected mid-lake at the permitted location on August 12. The laboratory had to scramble to conduct analysis for the compounds that have short holding times, such as the nutrients (nitrogen series and phosphorus series). Due to staff shortages, an analyst was pulled from another laboratory to conduct phosphate analysis. This analyst was under the impression that he was only coming in on Saturday to perform ortho-phosphorus on overtime. The analysis for total phosphorous, organic phosphorous, and condensed phosphorous were not analyzed that day and only discovered when the sample was past holding time. The root cause of this missed analysis is a lack of communication combined with staff shortages. This event also happened when the supervisor of the analysis lab was on vacation. This resulted in a deficient monitoring violation for stations RSW-4(4) and RSW-W2(W-2). |
To ensure this does not happen again, the analysts and the lab have been made aware that all of the phosphorus constituents need to be analyzed at the same time. Communication will be strengthened during off-schedule analysis to ensure nothing is missed. |
Violation |
U |
eSMR |
| 1109142 |
07/08/2022 |
CAT2 |
Dibenzo(a,h)anthracene Daily Maximum limit is 0.049 ug/L and reported value was 0.16 ug/L at EFF-001A. |
N/A |
Violation |
B |
eSMR |
| 1109141 |
07/08/2022 |
CAT2 |
Indeno (1,2,3-cd) Pyrene Daily Maximum limit is 0.03 lb/day and reported value was 0.044 lb/day at EFF-001A. |
N/A |
Violation |
B |
eSMR |
| 1109144 |
07/08/2022 |
CAT2 |
Indeno (1,2,3-cd) Pyrene Daily Maximum limit is 0.049 ug/L and reported value was 0.22 ug/L at EFF-001A. |
N/A |
Violation |
B |
eSMR |
| 1109143 |
07/04/2022 |
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-001A. |
N/A |
Violation |
B |
eSMR |
| 1108042 |
06/30/2022 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the pesticides semiannual requirements for the January through June 2022 period. The analysis for these constituents are contracted out. During this period, the Sample Receiving unit mistakenly did not send the sample to the contract lab. By the time the Sample Receiving unit noticed, these samples were past their holding times. The permit specifies that quarterly and semiannual requirements must be conducted in the first quarter, so by the time this issue was noticed it was already past the first quarter and resampling was not possible. This resulted in 3 monitoring deficiencies. Although this will not meet the permit requirements, these stations were analyzed in the second quarter for the semiannual requirements, and results were provided as a sign of good faith in the May 2022 report. |
In order to prevent recurrence in the future, the Sample Receiving unit will retrain all staff members on the appropriate storage location for sediment samples that are contracted out for analysis. In addition to this, a checklist will be used by staff to ensure all contracted out lab samples have been accounted for during the send out process. |
Violation |
B |
eSMR |
| 1108041 |
06/30/2022 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the pesticides semiannual requirements for the January through June 2022 period. The analysis for these constituents are contracted out. During this period, the Sample Receiving unit mistakenly did not send the sample to the contract lab. By the time the Sample Receiving unit noticed, these samples were past their holding times. The permit specifies that quarterly and semiannual requirements must be conducted in the first quarter, so by the time this issue was noticed it was already past the first quarter and resampling was not possible. This resulted in 3 monitoring deficiencies. Although this will not meet the permit requirements, these stations were analyzed in the second quarter for the semiannual requirements, and results were provided as a sign of good faith in the May 2022 report. |
In order to prevent recurrence in the future, the Sample Receiving unit will retrain all staff members on the appropriate storage location for sediment samples that are contracted out for analysis. In addition to this, a checklist will be used by staff to ensure all contracted out lab samples have been accounted for during the send out process. |
Violation |
B |
eSMR |
| 1108043 |
06/30/2022 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the pesticides semiannual requirements for the January through June 2022 period. The analysis for these constituents are contracted out. During this period, the Sample Receiving unit mistakenly did not send the sample to the contract lab. By the time the Sample Receiving unit noticed, these samples were past their holding times. The permit specifies that quarterly and semiannual requirements must be conducted in the first quarter, so by the time this issue was noticed it was already past the first quarter and resampling was not possible. This resulted in 3 monitoring deficiencies. Although this will not meet the permit requirements, these stations were analyzed in the second quarter for the semiannual requirements, and results were provided as a sign of good faith in the May 2022 report. |
In order to prevent recurrence in the future, the Sample Receiving unit will retrain all staff members on the appropriate storage location for sediment samples that are contracted out for analysis. In addition to this, a checklist will be used by staff to ensure all contracted out lab samples have been accounted for during the send out process. |
Violation |
B |
eSMR |
| 1106968 |
05/04/2022 |
DMON |
For the NPDES daily effluent requirements there was one deficient monitoring violation for total suspended solids on May 4, 2022. The sampling container was broken as the operator transported the sample to the lab. There was no composite sample available to analyze for total suspended solids on May 4, 2022 resulting in a deficient monitoring violation. |
N/A |
Violation |
B |
eSMR |
| 1105405 |
03/31/2022 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the diazinon quarterly requirements for the January through March 2022 period and the pesticides semiannual requirements for the January through June 2022 period. The analysis for these constituents are contracted out. During this period, the Sample Receiving unit did not send the sample to the contract lab by mistake. By the time the Sample Receiving unit noticed, these samples were past their holding times. The permit specifies that quarterly and semiannual requirements must be conducted in the first quarter, so by the time this issue was noticed it was already past the first quarter and resampling was not possible. Although this will not meet the permit requirements, these stations will be analyzed in the second quarter for the semiannual requirements, and results will be provided as a sign of good faith. This resulted in 6 monitoring deficiencies, 3 will be reported in the January through March 2022 period and 3 will be reported in the January through June 2022. |
In order to prevent recurrence in the future, the Sample Receiving unit will retrain all staff members on the appropriate storage location for sediment samples that are contracted out for analysis. In addition to this, a checklist will be used by staff to ensure all contracted out lab samples have been accounted for during the send out process. |
Violation |
U |
eSMR |
| 1105406 |
03/31/2022 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the diazinon quarterly requirements for the January through March 2022 period and the pesticides semiannual requirements for the January through June 2022 period. The analysis for these constituents are contracted out. During this period, the Sample Receiving unit did not send the sample to the contract lab by mistake. By the time the Sample Receiving unit noticed, these samples were past their holding times. The permit specifies that quarterly and semiannual requirements must be conducted in the first quarter, so by the time this issue was noticed it was already past the first quarter and resampling was not possible. Although this will not meet the permit requirements, these stations will be analyzed in the second quarter for the semiannual requirements, and results will be provided as a sign of good faith. This resulted in 6 monitoring deficiencies, 3 will be reported in the January through March 2022 period and 3 will be reported in the January through June 2022. |
In order to prevent recurrence in the future, the Sample Receiving unit will retrain all staff members on the appropriate storage location for sediment samples that are contracted out for analysis. In addition to this, a checklist will be used by staff to ensure all contracted out lab samples have been accounted for during the send out process. |
Violation |
U |
eSMR |
| 1105407 |
03/31/2022 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the diazinon quarterly requirements for the January through March 2022 period and the pesticides semiannual requirements for the January through June 2022 period. The analysis for these constituents are contracted out. During this period, the Sample Receiving unit did not send the sample to the contract lab by mistake. By the time the Sample Receiving unit noticed, these samples were past their holding times. The permit specifies that quarterly and semiannual requirements must be conducted in the first quarter, so by the time this issue was noticed it was already past the first quarter and resampling was not possible. Although this will not meet the permit requirements, these stations will be analyzed in the second quarter for the semiannual requirements, and results will be provided as a sign of good faith. This resulted in 6 monitoring deficiencies, 3 will be reported in the January through March 2022 period and 3 will be reported in the January through June 2022. |
In order to prevent recurrence in the future, the Sample Receiving unit will retrain all staff members on the appropriate storage location for sediment samples that are contracted out for analysis. In addition to this, a checklist will be used by staff to ensure all contracted out lab samples have been accounted for during the send out process. |
Violation |
U |
eSMR |
| 1102045 |
12/31/2021 |
DMON |
For the NPDES semiannual effluent requirements there was one deficient monitoring violation for perchlorate for the July through December 2021 period. A 24-hour composite sample was analyzed in the third quarter for perchlorate instead of a grab sample as specified in the NPDES permit. A composite sample is legally valid per the analytical EPA method 314.0 used by the laboratory. During this time there was a significant increase in the frequency of monitoring in the Santa Monica Bay per order R4-2021-0107-A02 because of the sewage discharge from the Hyperion Water Reclamation Plant on July 12 of 2021, which resulted in a growing backlog of samples to be analyzed by the Wet Chemistry lab. The composite sample from DCTWRP was analyzed instead of the grab sample and the lab could not spare the resources to resample and reanalyze. The composite sample had an estimated concentration of 0.68 ug/L. While valid, the NPDES permit requires for perchlorate to be analyzed on an effluent grab sample. Perchlorate is monitored more frequently than required in the NPDES permit. An effluent grab sample was also sampled and analyzed in the fourth quarter. The result for the effluent grab sample was reported in the semiannual discharge monitoring report. Although a correct sample type was analyzed for perchlorate in the period of July through December 2021, this still resulted in a semiannual deficient monitoring violation since the analysis was not conducted on a third quarter sample as required by the NPDES permit. |
N/A |
Violation |
U |
eSMR |
| 1097975 |
09/30/2021 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the diazinon quarterly requirements for the July through September 2021 period and the pesticides semiannual requirements for the July through December 2021 period. The analysis for these constituents are contracted out. During this period, the contract lab that normally conducts this analysis was relocating so they decided to subcontract the analysis. Due to this, the samples were analyzed after their holding time so results are not reportable. The permit specifies that quarterly and semiannual requirements must be conducted in the third quarter, so by the time this issue was noticed it was already past the third quarter and resampling was not possible. This resulted in 3 monitoring deficiencies for the quarterly requirements. |
N/A |
Violation |
U |
eSMR |
| 1097976 |
09/30/2021 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the diazinon quarterly requirements for the July through September 2021 period and the pesticides semiannual requirements for the July through December 2021 period. The analysis for these constituents are contracted out. During this period, the contract lab that normally conducts this analysis was relocating so they decided to subcontract the analysis. Due to this, the samples were analyzed after their holding time so results are not reportable. The permit specifies that quarterly and semiannual requirements must be conducted in the third quarter, so by the time this issue was noticed it was already past the third quarter and resampling was not possible. This resulted in 3 monitoring deficiencies for the quarterly requirements. |
N/A |
Violation |
U |
eSMR |
| 1097977 |
09/30/2021 |
DMON |
For the sediment requirements there were deficient monitoring violations for stations RSW-4(4), RSW-W2(W-2), and RSW-LATT622(D). There are no results to report for the diazinon quarterly requirements for the July through September 2021 period and the pesticides semiannual requirements for the July through December 2021 period. The analysis for these constituents are contracted out. During this period, the contract lab that normally conducts this analysis was relocating so they decided to subcontract the analysis. Due to this, the samples were analyzed after their holding time so results are not reportable. The permit specifies that quarterly and semiannual requirements must be conducted in the third quarter, so by the time this issue was noticed it was already past the third quarter and resampling was not possible. This resulted in 3 monitoring deficiencies for the quarterly requirements. |
N/A |
Violation |
U |
eSMR |
| 1093160 |
05/31/2021 |
DMON |
For the NPDES monthly effluent requirements there was one deficient monitoring violation for heptachlor due to a laboratory error. During the analysis, the sample was spiked in error with the target analyte instead of the required surrogates and the results are not reportable. There are no results to report in May. |
N/A |
Violation |
U |
eSMR |
| 1090988 |
03/06/2021 |
DMON |
For the NPDES weekly lake requirement for RSW-4(4) and RSW-W2 (W-2) there were deficient monitoring violations. The samples taken on March 2, 2021, were not analyzed for total Kjeldahl nitrogen within their 28 day holding time. Consequently, no results were reported for total Kjeldahl nitrogen, organic nitrogen, and total nitrogen for the week of February 28 to March 6 resulting in 2 weekly monitoring deficiencies. The Wet Chemistry laboratory has been experiencing staff shortages due to the COVID-19 pandemic, which resulted in a growing backlog of samples to be analyzed. The Wet Chemistry supervisor prioritized analyses with short hold times. Despite best efforts to analyze all samples in a timely manner, both the supervisor of Wet Chemistry and the staff overlooked these particular samples. In addition, the samples were mistakenly put away in the back up refrigerator prior to analysis being completed on the samples. |
In order to correct this deficiency, staff have been reminded to closely pay attention to labels on samples bottles and not put anything away until all analyses on the label are marked complete. The supervisor of Wet Chemistry is also being reminded to closely monitor samples that are nearing hold time expiration and to notify staff to analyze these samples as soon as possible. |
Violation |
U |
eSMR |
| 1090989 |
03/06/2021 |
DMON |
For the NPDES weekly lake requirement for RSW-4(4) and RSW-W2 (W-2) there were deficient monitoring violations. The samples taken on March 2, 2021, were not analyzed for total Kjeldahl nitrogen within their 28 day holding time. Consequently, no results were reported for total Kjeldahl nitrogen, organic nitrogen, and total nitrogen for the week of February 28 to March 6 resulting in 2 weekly monitoring deficiencies. The Wet Chemistry laboratory has been experiencing staff shortages due to the COVID-19 pandemic, which resulted in a growing backlog of samples to be analyzed. The Wet Chemistry supervisor prioritized analyses with short hold times. Despite best efforts to analyze all samples in a timely manner, both the supervisor of Wet Chemistry and the staff overlooked these particular samples. In addition, the samples were mistakenly put away in the back up refrigerator prior to analysis being completed on the samples. |
In order to correct this deficiency, staff have been reminded to closely pay attention to labels on samples bottles and not put anything away until all analyses on the label are marked complete. The supervisor of Wet Chemistry is also being reminded to closely monitor samples that are nearing hold time expiration and to notify staff to analyze these samples as soon as possible. |
Violation |
U |
eSMR |
| 1089847 |
02/28/2021 |
DMON |
In February, there was a deficient monitoring violation for total nitrogen, which is required monthly for the NPDES permit. The schedule sampling date for Ammonia and Organic Nitrogen had to be postponed due to the plant not discharging effluent because of a turbidity issue. Since all the nitrogen constituents were not analyzed on the same day, total nitrogen was not able to be calculated. |
Another total nitrogen deficient monitoring violation occurred in January 2021. After this second occurrence in February, a note was made on the chain of custody template and the analyzing lab¿s supervisor made a change in his review procedure in order to prevent a reoccurrence. |
Violation |
U |
eSMR |
| 1088873 |
01/31/2021 |
DMON |
In January, there was a deficient monitoring violation for total nitrogen, which is required monthly for the NPDES permit. The ammonia and organic-nitrogen samples taken January 5 were misplaced/lost. A resample was taken for only ammonia and organic-nitrogen on January 18. Since all the nitrogen constituents were not analyzed on the same day, total nitrogen was not able to be calculated. |
Another total nitrogen deficient monitoring violation occurred in February 2021. After this second occurrence in February and the discovery of the January deficiency, a note was made on the chain of custody template and the analyzing lab¿s supervisor made a change in his review procedure in order to prevent a reoccurrence. |
Violation |
U |
eSMR |
| 1082477 |
09/13/2020 |
DMON |
For the weeks of September 13-19 and 20-26 both stations RSW-4(4) and RSW-W2(W-2) were not sampled for any of their weekly requirements. For those two weeks there are no results for pH, temperature, dissolved oxygen, total nitrogen, TKN, ammonia nitrogen, organic nitrogen, nitrate nitrogen, nitrite nitrogen, total phosphorus, organic phosphorus, condensed phosphorus, and orthophosphorus. Boat malfunctions led to missed weekly sampling of stations RSW-4(4) and RSW-W2(W-2) for a duration of two weeks before the Department of Recreation and Parks could acquire and affix a loaned engine to one of the boats. Sampling resumed and the original engines were fixed in October. As weekly sampling of both monitoring locations are required in the DCTWRP NPDES discharge permit, alternate sites accessible by sampling pole from the shoreline were sampled until one of the boats was repaired. An alternate sampling location for RSW-W2(W-2) has already been approved previously (August 2, 2019). An approved alternate location for RSW-4(4) does not currently exist, but a suitable location has been determined to proceed with mandated weekly sampling. Due to both the approved alternate location for RSW-W2(W-2) and the unapproved alternate location of RSW-4(4) not being in the California Integrated Water Quality System, these weekly results were submitted as an attachment with this monthly report. Since these results are a weekly NPDES requirement for RSW-4(4) and were taken from an unapproved alternate site, this resulted in a deficient monitoring violation for station RSW-4(4) for the month of September. |
N/A |
Violation |
U |
eSMR |
| 1080243 |
07/30/2020 |
DMON |
On July 30, 2020, the laboratory staff did not analyze for total chlorine residual on the effluent at 10 am since the level of the effluent was still too low to obtain a grab sample because of a SOPER. The staff, however, went at 12:40 pm to get an effluent grab sample for pH, temperature, and settleable solids. Due to a laboratory miscommunication, the staff did not analyze for total chlorine residual. This was reported as a no sample (NS). Per the permit, this is a daily requirement, so this resulted in a daily monitoring deficiency for total chlorine residual. |
N/A |
Violation |
B |
eSMR |
| 1080242 |
07/07/2020 |
DMON |
For the NPDES weekly lake requirement for RSW-4(4) there were a total of 3 deficient monitoring violations. The sample taken on July 7, 2020, was not analyzed for organic Nitrogen within the 28 day holding time. As a result no results were reported for the organic nitrogen for the week of July 5-11 resulting in 1 weekly monitoring deficiency. Also for the week of July 5-11, since there were no results for organic nitrogen, total nitrogen was not able to be calculated which resulted in 1 more weekly monitoring deficiency. The samples taken on July 14, 2020, were not analyzed for Nitrate-N and Nitrite-N within their 48 hours holding time. There was a resample on July 17, 2020 for only Nitrate-N and Nitrite-N. Since all the nitrogen constituents in the week of July 12-18 were not analyzed on the same day, total nitrogen was not able to be calculated which resulted in 1 more weekly monitoring deficiency. |
In order to correct this deficiency, staff from other groups in EMD are being trained on some Wet Chemistry methods in order to alleviate the issue with staff shortages. The supervisor of Wet Chemistry is also being reminded to closely monitor samples that are nearing holding time expiration and notifying Wet Chemistry staff to analyze these samples as soon as possible. |
Violation |
B |
eSMR |
| 1080244 |
07/07/2020 |
DMON |
For the NPDES weekly lake requirement for RSW-W2(W-2) there were a total of 3 deficient monitoring violations. The sample taken on July 7, 2020, was not analyzed for organic Nitrogen within the 28 day holding time. As a result no results were reported for the organic nitrogen for the week of July 5-11 resulting in 1 weekly monitoring deficiency. Also for the week of July 5-11, since there were no results for organic nitrogen, total nitrogen was not able to be calculated which resulted in 1 more weekly monitoring deficiency. The samples taken on July 14, 2020, were not analyzed for Nitrate-N and Nitrite-N within their 48 hours holding time. There was a resample on July 17, 2020 for only Nitrate-N and Nitrite-N. Since all the nitrogen constituents in the week of July 12-18 were not analyzed on the same day, total nitrogen was not able to be calculated which resulted in 1 more weekly monitoring deficiency. |
In order to correct this deficiency, staff from other groups in EMD are being trained on some Wet Chemistry methods in order to alleviate the issue with staff shortages. The supervisor of Wet Chemistry is also being reminded to closely monitor samples that are nearing holding time expiration and notifying Wet Chemistry staff to analyze these samples as soon as possible. |
Violation |
B |
eSMR |
| 1079428 |
06/17/2020 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 27 MPN/100 mL at EFF-001B. |
To prevent this type of occurrence in the future, and as part of the investigation, Plant operations staff will schedule and inspect the chlorine contact tanks effluent channel and look for any debris or solids buildup in the channel. Any residue that is noted will be removed accordingly. |
Violation |
U |
eSMR |
| 1076846 |
04/28/2020 |
DMON |
On April 28, 2020 Los Angeles City Department of Recreation and Parks staff attempting to sample stations RSW-4 and RSW-W2 discovered the boat engine was inoperable. The secondary boat is also out-of-service with a necessary part on back-order. Both sampling locations are located offshore in deeper water and accessible only by boat. As weekly sampling of both monitoring locations are required in the DCTWRP NPDES discharge permit, alternate sites accessible by sampling pole from the shoreline will be sampled until at least one of the boats is repaired. An approved alternate location for RSW-4 does not currently exist, but a suitable location has been determined to proceed with mandated weekly sampling. Due to the unapproved alternate location of RSW-4 not being in the California Integrated Water Quality System, these weekly nitrogen nutrients results were submitted as an attachment with this monthly report. Since these results are a weekly NPDES requirement for RSW-4 and were taken from an unapproved alternate site, this resulted in six deficient monitoring violations for the week of April 26 to May 2 of 2020 for nitrogen nutrients. The six deficient monitoring violations were for total nitrogen, total kjeldahl nitrogen, ammonia nitrogen, organic nitrogen, nitrate nitrogen, and nitrite nitrogen. |
N/A |
Violation |
U |
eSMR |
| 1076847 |
04/28/2020 |
DMON |
On April 28, 2020 Los Angeles City Department of Recreation and Parks staff attempting to sample stations RSW-4 and RSW-W2 discovered the boat engine was inoperable. The secondary boat is also out-of-service with a necessary part on back-order. Both sampling locations are located offshore in deeper water and accessible only by boat. As weekly sampling of both monitoring locations are required in the DCTWRP NPDES discharge permit, alternate sites accessible by sampling pole from the shoreline will be sampled until at least one of the boats is repaired. An approved alternate location for RSW-4 does not currently exist, but a suitable location has been determined to proceed with mandated weekly sampling. Due to the unapproved alternate location of RSW-4 not being in the California Integrated Water Quality System, these weekly nitrogen nutrients results were submitted as an attachment with this monthly report. Since these results are a weekly NPDES requirement for RSW-4 and were taken from an unapproved alternate site, this resulted in six deficient monitoring violations for the week of April 26 to May 2 of 2020 for nitrogen nutrients. The six deficient monitoring violations were for total nitrogen, total kjeldahl nitrogen, ammonia nitrogen, organic nitrogen, nitrate nitrogen, and nitrite nitrogen. |
N/A |
Violation |
U |
eSMR |
| 1076848 |
04/28/2020 |
DMON |
On April 28, 2020 Los Angeles City Department of Recreation and Parks staff attempting to sample stations RSW-4 and RSW-W2 discovered the boat engine was inoperable. The secondary boat is also out-of-service with a necessary part on back-order. Both sampling locations are located offshore in deeper water and accessible only by boat. As weekly sampling of both monitoring locations are required in the DCTWRP NPDES discharge permit, alternate sites accessible by sampling pole from the shoreline will be sampled until at least one of the boats is repaired. An approved alternate location for RSW-4 does not currently exist, but a suitable location has been determined to proceed with mandated weekly sampling. Due to the unapproved alternate location of RSW-4 not being in the California Integrated Water Quality System, these weekly nitrogen nutrients results were submitted as an attachment with this monthly report. Since these results are a weekly NPDES requirement for RSW-4 and were taken from an unapproved alternate site, this resulted in six deficient monitoring violations for the week of April 26 to May 2 of 2020 for nitrogen nutrients. The six deficient monitoring violations were for total nitrogen, total kjeldahl nitrogen, ammonia nitrogen, organic nitrogen, nitrate nitrogen, and nitrite nitrogen. |
N/A |
Violation |
U |
eSMR |
| 1076849 |
04/28/2020 |
DMON |
On April 28, 2020 Los Angeles City Department of Recreation and Parks staff attempting to sample stations RSW-4 and RSW-W2 discovered the boat engine was inoperable. The secondary boat is also out-of-service with a necessary part on back-order. Both sampling locations are located offshore in deeper water and accessible only by boat. As weekly sampling of both monitoring locations are required in the DCTWRP NPDES discharge permit, alternate sites accessible by sampling pole from the shoreline will be sampled until at least one of the boats is repaired. An approved alternate location for RSW-4 does not currently exist, but a suitable location has been determined to proceed with mandated weekly sampling. Due to the unapproved alternate location of RSW-4 not being in the California Integrated Water Quality System, these weekly nitrogen nutrients results were submitted as an attachment with this monthly report. Since these results are a weekly NPDES requirement for RSW-4 and were taken from an unapproved alternate site, this resulted in six deficient monitoring violations for the week of April 26 to May 2 of 2020 for nitrogen nutrients. The six deficient monitoring violations were for total nitrogen, total kjeldahl nitrogen, ammonia nitrogen, organic nitrogen, nitrate nitrogen, and nitrite nitrogen. |
N/A |
Violation |
U |
eSMR |
| 1076850 |
04/28/2020 |
DMON |
On April 28, 2020 Los Angeles City Department of Recreation and Parks staff attempting to sample stations RSW-4 and RSW-W2 discovered the boat engine was inoperable. The secondary boat is also out-of-service with a necessary part on back-order. Both sampling locations are located offshore in deeper water and accessible only by boat. As weekly sampling of both monitoring locations are required in the DCTWRP NPDES discharge permit, alternate sites accessible by sampling pole from the shoreline will be sampled until at least one of the boats is repaired. An approved alternate location for RSW-4 does not currently exist, but a suitable location has been determined to proceed with mandated weekly sampling. Due to the unapproved alternate location of RSW-4 not being in the California Integrated Water Quality System, these weekly nitrogen nutrients results were submitted as an attachment with this monthly report. Since these results are a weekly NPDES requirement for RSW-4 and were taken from an unapproved alternate site, this resulted in six deficient monitoring violations for the week of April 26 to May 2 of 2020 for nitrogen nutrients. The six deficient monitoring violations were for total nitrogen, total kjeldahl nitrogen, ammonia nitrogen, organic nitrogen, nitrate nitrogen, and nitrite nitrogen. |
N/A |
Violation |
U |
eSMR |
| 1076851 |
04/28/2020 |
DMON |
On April 28, 2020 Los Angeles City Department of Recreation and Parks staff attempting to sample stations RSW-4 and RSW-W2 discovered the boat engine was inoperable. The secondary boat is also out-of-service with a necessary part on back-order. Both sampling locations are located offshore in deeper water and accessible only by boat. As weekly sampling of both monitoring locations are required in the DCTWRP NPDES discharge permit, alternate sites accessible by sampling pole from the shoreline will be sampled until at least one of the boats is repaired. An approved alternate location for RSW-4 does not currently exist, but a suitable location has been determined to proceed with mandated weekly sampling. Due to the unapproved alternate location of RSW-4 not being in the California Integrated Water Quality System, these weekly nitrogen nutrients results were submitted as an attachment with this monthly report. Since these results are a weekly NPDES requirement for RSW-4 and were taken from an unapproved alternate site, this resulted in six deficient monitoring violations for the week of April 26 to May 2 of 2020 for nitrogen nutrients. The six deficient monitoring violations were for total nitrogen, total kjeldahl nitrogen, ammonia nitrogen, organic nitrogen, nitrate nitrogen, and nitrite nitrogen. |
N/A |
Violation |
U |
eSMR |
| 1071660 |
12/11/2019 |
DMON |
On December 11, there was no effluent composite sample (NS) to analyze for total suspended solids (TSS) due to the plant auto sampler arm dispenser malfunctioning. Per the permit, TSS is a daily requirement, so this resulted in a daily monitoring deficiency. |
Lab personnel brought the issue to the plant personnel to get the auto sampler repaired. The instrument mechanics then replaced the auto sampler arm dispenser the following day. In order to prevent recurrence, the operators will observe the auto sampler on a daily basis to see if it is working properly. The instrument mechanics will be notified of any issue as soon as possible to have it resolved and to try to avoid missing a sample. |
Violation |
U |
eSMR |
| 1071658 |
12/03/2019 |
DMON |
Total coliforms and E. coli had a deficient monitoring violation on December 3, 2019. The analyst dropped the opened sample bottle and contaminated the bottle cap before analysis. The result was reported as an analyst error (AE). Per the permit, this is a daily requirement, so this resulted in a daily monitoring deficiency for total coliforms and E. coli. |
Lab personnel was counseled that if this occurs again, they must return to the laboratory to get another sterilized bottle and resample. |
Violation |
U |
eSMR |
| 1071659 |
12/03/2019 |
DMON |
Total coliforms and E. coli had a deficient monitoring violation on December 3, 2019. The analyst dropped the opened sample bottle and contaminated the bottle cap before analysis. The result was reported as an analyst error (AE). Per the permit, this is a daily requirement, so this resulted in a daily monitoring deficiency for total coliforms and E. coli. |
Lab personnel was counseled that if this occurs again, they must return to the laboratory to get another sterilized bottle and resample. |
Violation |
U |
eSMR |
| 1065311 |
07/31/2019 |
CAT2 |
Copper, Total Recoverable Monthly Average limit is 27 ug/L and reported value was 77.1 ug/L at EFF-001A. |
The analyst was counseled on the importance of comparing sample results to effluent limitations. A summary sheet with all effluent limitations was also distributed to all analysts for easy reference, and to prevent recurrence of a similar issue. |
Violation |
B |
eSMR |
| 1065310 |
07/01/2019 |
CAT2 |
Copper, Total Recoverable Maximum Daily (MDEL) limit is 31 ug/L and reported value was 77.1 ug/L at EFF-001A. |
No corrective actions are needed at this time. |
Violation |
B |
eSMR |
| 1063854 |
06/08/2019 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3.1 MPN/100 mL at EFF-001B. |
Please also note that E.coli results for both days were <1 MPN/100mL. Plant staff has taken the following actions: the covers on the Chlorine Contact Tanks were checked for proper watertight seal, and operations staff was assigned to perform extra housekeeping around the sample port at the South Channel.
Lessons learned from this event will be retained knowledge in the form of adding additional language to the Standard Operating Procedure (SOP), performing additional housekeeping and monitoring around the area of the effluent chlorine contact channel to prevent this type of occurrence in the future. Additional training of Plant Operations staff will also be required. |
Violation |
B |
eSMR |
| 1063855 |
06/07/2019 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3.1 MPN/100 mL at EFF-001B. |
Please also note that E.coli results for both days were <1 MPN/100mL. Plant staff has taken the following actions: the covers on the Chlorine Contact Tanks were checked for proper watertight seal, and operations staff was assigned to perform extra housekeeping around the sample port at the South Channel.
Lessons learned from this event will be retained knowledge in the form of adding additional language to the Standard Operating Procedure (SOP), performing additional housekeeping and monitoring around the area of the effluent chlorine contact channel to prevent this type of occurrence in the future. Additional training of Plant Operations staff will also be required. |
Violation |
B |
eSMR |
|
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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