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. |
1143334 |
02/19/2025 |
Deficient Monitoring |
Per Section 4.1 of the MRP, continuous monitoring of total residual chlorine shall serve as a trigger for increased grab sampling for total residual chlorine excursions of up to 0.3 mg/L lasting more than 15 minutes or excursions between 0.1 to 0.3 mg/L lasting longer than 15 minutes. At 11:50 a.m. on February 19, the Valencia WRP temporarily lost power while testing the emergency generators. The emergency generators turned on; however, there was a slight delay, resulting in temporary power loss at the Valencia WRP. As a result, the UV disinfection system was shut down, and all effluent flow was routed to the chlorine contact tanks for disinfection. During this transition, the metered final effluent total residual chlorine exceeded 0.3 mg/L for approximately 8 minutes and remained between 0.1 and 0.3 mg/L for approximately 16 minutes, triggering collection of an additional grab sample. At 12:25 p.m., a grab sample was collected, and chlorine was not detected; however, collection and analysis did not follow analytical method protocols. As a result, the non-detect result was not reportable. Despite this, sodium bisulfite, the dechlorination chemical, was dosed more than the stoichiometric amount needed to fully dechlorinate the effluent; therefore, the effluent was fully dechlorinated. To prevent reoccurrence, the Sanitation District will implement procedures to ensure all additional grab samples collected for total residual chlorine analysis follow analytical method protocols. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1143333 |
02/28/2025 |
Deficient Monitoring |
Per Section 4.1 of the MRP, effluent samples shall be analyzed monthly for dissolved oxygen (DO). An effluent sample was not collected in February because of a laboratory analyst error. A make-up sample was collected on March 3, and the DO result will be included in the March report. To prevent this issue from reoccurring, analysts were reminded to carefully check that all required monitoring samples are collected within the required timeframes. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1137438 |
09/30/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1135990 |
08/31/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 % effect and reported value was 1 % effect at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1130583 |
05/31/2024 |
OEV |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1125031 |
12/31/2023 |
CAT1 |
Chloride Other limit is 102.0 mg/L and reported value was 105.0 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1124221 |
11/30/2023 |
CAT1 |
Chloride Other limit is 98.3 mg/L and reported value was 104 mg/L at EFF-001. *** MMP Exempt Reason:Per CWC section 13385(j)(1)(D) a mandatory minimum penalty shall not be assessed during the 30-day adjustment period in which the Operations Plan is in effect for the startup of the AWTF. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1123233 |
10/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 103 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1122610 |
09/30/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 106 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1121832 |
08/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 108 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1121831 |
08/14/2023 |
Deficient Monitoring |
Per Sections 3.1 and 4.1 of the MRP, influent and effluent samples, respectively, shall be analyzed weekly for biochemical oxygen demand (BOD5). Results from the influent and effluent samples collected on August 14 were invalid because the BOD5 result was not read within the method specified incubation timeframe. Make-up samples were collected on September 14. To prevent reoccurrence, lab analysts will ensure BOD5 results are read within the required incubation timeframe. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1121830 |
08/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 103 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1120981 |
07/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 108 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1120980 |
07/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 104 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1120029 |
06/30/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1120028 |
06/30/2023 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1120027 |
06/30/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 107 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1119196 |
05/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 114 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1119178 |
05/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1118427 |
04/30/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1118423 |
04/30/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1117793 |
03/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 112 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1117792 |
03/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 124 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1116685 |
02/28/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 124 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1116656 |
02/28/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1115387 |
01/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1115365 |
01/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1115304 |
05/01/2022 |
Late Report |
Annual SMR ( PRETRPT ) report for 2021 (2709315) was due on 30-APR-22 |
Violation |
None |
Report |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1115303 |
05/01/2021 |
Late Report |
Annual SMR ( PRETRPT ) report for 2020 (2709314) was due on 30-APR-21 |
Violation |
None |
Report |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1114569 |
12/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 118 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1114567 |
12/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 114 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1113287 |
11/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1113286 |
11/01/2022 |
Deficient Monitoring |
Per Section 4.1 of the MRP, continuous monitoring of total chlorine residual shall serve as a trigger for increased grab sampling for total chlorine residual excursions of up to 0.3 mg/L lasting more than 15 minutes. On November 1, the UV system was shutdown and all effluent flow was routed to the chlorine contact tanks (CCTs) for disinfection. During the transition, the metered final effluent total chlorine residual was between 0.1 and 0.3 mg/L for approximately 21 minutes which triggered grab sampling. A sample was collected; however, analysis of the grab sample did not follow analytical method protocol and, as a result, the non-detect result was not reportable. Despite this, sodium bisulfite, the dechlorination chemical, was dosed more than the stoichiometric amount needed to fully dechlorinate the effluent; therefore, the effluent was fully dechlorinated. To prevent this issue from re-occurring, the Sanitation District plans to implement procedures to ensure sample collection and analysis follow analytical method protocol. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1113284 |
11/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 111 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1112167 |
10/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1112166 |
10/18/2022 |
Deficient Monitoring |
Per Section 4.1 of the MRP, effluent samples shall be analyzed quarterly for total phosphorus. The result from a sample collected on October 18 was invalid due to analyzing the sample outside of holding time. This issue was not discovered until after the end of the fourth quarter so make-up samples could not be collected during the monitoring period. The Sanitation District is investigating this issue and plans to implement changes to prevent this issue from re-occurring. A make-up sample is scheduled in the first quarter of 2023. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1112165 |
10/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 111 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1111300 |
09/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 112 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1111298 |
09/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1109980 |
08/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 118 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1109968 |
08/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 114 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1109617 |
10/16/2022 |
Late Report |
Monthly SMR ( MONNPDES ) report for July 2022 (2593407) was due on 15-OCT-22 |
Violation |
None |
Report |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1109285 |
07/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
1109284 |
07/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1108191 |
06/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1108187 |
06/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1107047 |
05/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1107046 |
05/31/2022 |
Deficient Monitoring |
Per Section VIII.A.1¬ of the MRP, receiving water samples shall be analyzed monthly for MBAS. Analytical results of samples collected from receiving water stations RSW-001U (R-C), RSW-002D (R-D) and RSW-003D (R-E) on May 3 are invalid due to data integrity issues. Make-up samples were collected in June and results will be reported in the June report. Corrective actions to prevent this from recurring include: 1) purchase and implementation of a spectrophotometer that has a reading log and can directly and electronically transfer results to the data management system to assure analytical results are accurately recorded, 2) routine review of analysts¿ adherence to laboratory Standard Operating Procedures (SOPs), and 3) additional staff assigned to oversee laboratory activities. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1107041 |
05/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1107040 |
05/04/2022 |
OEV |
Total Coliform Single Sample Maximum limit is 240 CFU/100 mL and reported value was 241 CFU/100 mL at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1106179 |
04/30/2022 |
Deficient Monitoring |
Per Section IV.A. of the MRP, effluent samples shall be analyzed quarterly for oil and grease. An effluent sample was not collected or analyzed for oil and grease during the second quarter because this sample event was not transitioned to the new UV effluent monitoring location. On March 1 the Valencia WRP began discharging UV effluent directly to the river. As a result, the Sanitation District transitioned the EFF-001 monitoring location to collect UV effluent samples; however, Sanitation District staff missed transitioning the oil and grease sample. A make-up sample will be collected as soon as possible. To prevent reoccurrence, the sample location for effluent oil and grease samples was relocated to collect samples downstream of the UV disinfection process. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1106178 |
04/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1106155 |
04/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 118 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1106105 |
05/01/2022 |
Late Report |
Annual SMR ( PROGRPT ) (Chloride TMDL Task 3 Progress Report) report for 2022 (2612858) was due on 30-APR-22 |
Violation |
None |
Report |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
1105431 |
03/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1105418 |
03/01/2022 |
Deficient Monitoring |
Per Section VIII.A.1¬ of the MRP, receiving water samples shall be analyzed monthly for MBAS. Analytical results of samples collected from receiving water stations RSW-001U (R-C), RSW-002D (R-D) and RSW-003D (R-E) on March 1 are invalid due to data integrity issues. Make-up samples will be collected as soon as possible. Corrective actions to prevent this from recurring include: 1) purchase and implementation of a spectrophotometer that has a reading log and can directly and electronically transfer results to the data management system to assure analytical results are accurately recorded, 2) routine review of analysts¿ adherence to laboratory Standard Operating Procedures (SOPs), and 3) additional staff assigned to oversee laboratory activities. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1105417 |
03/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1104101 |
02/28/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1104099 |
02/28/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1103054 |
01/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 123 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1103053 |
01/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1102076 |
12/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1102075 |
12/31/2021 |
Deficient Monitoring |
Per Section IV.A of the MRP, effluent samples shall be analyzed monthly for dissolved oxygen. An effluent sample was not collected in December because of an error using the software managing the Sanitation District's monitoring program, the Laboratory Information Management System (LIMS). An update to LIMS software modified the user interface and, as a result, an analyst overlooked the sample schedule for effluent dissolved oxygen. To prevent reoccurrence, analysts adjusted how they generate sample schedules so future monitoring will not be missed. A make-up sample was collected on February 26. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1102074 |
12/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 124 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1100571 |
11/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1100570 |
11/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 126 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1099058 |
10/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 128 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1099035 |
10/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1097948 |
09/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1097944 |
09/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 126 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1096517 |
08/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1096514 |
08/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 124 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1095316 |
07/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 123 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1095217 |
07/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 115 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1093960 |
06/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1093958 |
06/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 126 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1093150 |
05/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 125 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1093147 |
05/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1091995 |
04/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 120 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1091994 |
04/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 104 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1091107 |
03/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1091106 |
03/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 104 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1089903 |
02/28/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 103 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1089902 |
02/28/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 115 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1088878 |
01/18/2021 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction 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. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1088877 |
01/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 105 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1088876 |
01/31/2021 |
Surface Water |
The narrative receiving water objective was exceeded at receiving water station RSW-002D (R-B) for the month of January 2021. Regional Board staff was immediately notified by telephone at 7:08 a.m. on January 27, 2021, followed by written notification on January 28, 2021. Compliance was based on two valid Ceriodaphnia dubia chronic toxicity bioassays conducted in January using grab samples from receiving water station RSW-002D (R-B). The first toxicity test was initiated on January 5 using samples collected on January 4, 6, and 8. This test failed the Test of Significant Toxicity (TST) with 57.4% reproduction effect in the undiluted sample. The second test was initiated on January 19 using samples collected on January 18, 19, and 21. This test failed the TST for the reproduction endpoint with 72.5% effect observed in the undiluted sample. As a result, the monthly median narrative objective was exceeded. RSW-002D (R-B) is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on February 27, 2020 in response to a single accelerated chronic toxicity test failing the TST. Steps 1 and 2 of the Detailed TRE Workplan were completed in April 2020, and Step 3 (Phase I Toxicity Identification Evaluation, TIE, testing) has continued through December; however, no causative agents have been identified yet. Because a separate TRE was being conducted for the Saugus WRP final effluent and it is the only known point source, the Sanitation District combined the two TRE Workplans to determine the cause of toxicity at both locations. The Sanitation Districts will continue to follow the submitted TRE Workplans and provide timely updates to the Regional Board. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1088875 |
01/31/2021 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1088872 |
01/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 115 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1087639 |
12/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1087638 |
12/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 102 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1087637 |
12/31/2020 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1087636 |
12/31/2020 |
Surface Water |
The narrative receiving water objective was exceeded at receiving water station RSW-002D (R-B) for the month of December 2020. Regional Board staff was immediately notified by telephone at 1:15 PM on January 8, 2021, followed by written notification on January 8, 2021. Compliance was based on three valid Ceriodaphnia dubia chronic toxicity bioassays conducted in December using grab samples from receiving water station RSW-002D (R-B). The first toxicity test was initiated on December 9 using samples collected on December 8, 9, and 11. This test failed the Test of Significant Toxicity (TST) with 23.2% reproduction effect in the undiluted sample. The second test was initiated on December 22 using samples collected on December 21, 22, and 24. This test passed the TST for the reproduction endpoint with 20.2% effect observed in the undiluted sample. A third test was initiated on January 1, 2021 using samples collected on December 31 and January 1 and 5. This test failed the TST for the reproduction endpoint with 44.6% effect in undiluted effluent. As a result, the monthly median narrative objective was exceeded. RSW-002D (R-B) is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on February 27, 2020 in response to a single accelerated chronic toxicity test failing the TST. Steps 1 and 2 of the Detailed TRE Workplan were completed in April 2020, and Step 3 (Phase I Toxicity Identification Evaluation, TIE, testing) has continued through December; however, no causative agents have been identified yet. Because a separate TRE was being conducted for the Saugus WRP final effluent and it is the only known point source, the Sanitation District combined the two TRE Workplans to determine the cause of toxicity at both locations. The Sanitation Districts will continue to follow the submitted TRE Workplans and provide timely updates to the Regional Board. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1085763 |
11/30/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1085762 |
11/30/2020 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1085761 |
11/30/2020 |
Surface Water |
The narrative receiving water objective was exceeded at receiving water station RSW-002D (R-B) for the month of November 2020. Immediate notification of this exceedance was provided by phone to Jeong-Hee Lim of the Regional Board on November 24, 2020, at 12:12 PM, and written notification was provided on November 25, 2020. Compliance was based on two valid Ceriodaphnia dubia chronic toxicity bioassays conducted in November using grab samples from receiving water station RSW-002D (R-B). The first toxicity test was initiated on November 5 using samples collected on November 4, 6, and 10 This test failed the Test of Significant Toxicity (TST) with 40.8% reproduction effect in the undiluted sample. The second test was initiated on November 17 using samples collected on November 16, 18, and 20. This test also failed the TST for the reproduction endpoint with 46.3% effect observed in the undiluted sample. As a result, the monthly median narrative objective was exceeded. RSW-002D (R-B) is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on February 27, 2020 in response to a single accelerated chronic toxicity test failing the TST. Steps 1 and 2 of the Detailed TRE Workplan were completed in April, and Step 3 (Phase I Toxicity Identification Evaluation, TIE, testing) has continued through November; however, no causative agents have been identified yet. Because a separate TRE was being conducted for the Saugus WRP final effluent and it is the only known point source, the Sanitation District combined the two TRE Workplans to determine the cause of toxicity at both locations. The Sanitation Districts will continue to follow the submitted TRE Workplans and provide timely updates to the Regional Board. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1085760 |
11/30/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 101 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1084064 |
10/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1082693 |
09/30/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 112 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1081347 |
08/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 112 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1080310 |
07/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 111 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1080306 |
07/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 101 mg/L at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
1079433 |
06/30/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 109 mg/L at EFF-001. |
Violation |
N |
eSMR |
Valencia WRP |
395514 |
R4-2015-0071 |
N |
1079431 |
06/30/2020 |
Surface Water |
Per Section V.A.19 of the WDR, there shall be no chronic toxicity in ambient waters as a result of the discharge. Furthermore, Footnote 31 in Section VIII.A.I of the MRP states that "the median monthly summary result is a threshold value for a determination of meeting the narrative receiving water objective..." The narrative receiving water objective was exceeded at receiving water station RSW-002D (R-B) for the month of June 2020 as a result of two valid Ceriodaphnia dubia toxicity tests. Immediate notification was provided via voice message to Ms. Jeong-Hee Lim on June 24, 2020, at 3:39 PM, followed by written notification on June 25. Compliance was determined using the results of two Ceriodaphnia dubia chronic toxicity tests initiated on June 4 and 16. Grab samples for these tests were collected from receiving water station RSW-002D (R-B) on June 3, 5, and 8 and June 15, 17, and 19, respectively. Both tests failed the Test of Significant Toxicity (TST). The survival and reproduction endpoints in the undiluted receiving water samples were -5.3% and 30.7%, and 0% and 24.5%, respectively. As a result, the median monthly threshold objective was exceeded; however, the final effluent passed the TST and was in compliance for June. RSW-002D (R-B) is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on February 27, 2020 in response to a single accelerated chronic toxicity test failing the Test of Significant Toxicity (TST) statistical procedure. Beginning in March, as part of the TRE process, the testing frequency at RSW-002D (R-B) was increased from quarterly to monthly. Steps 1 and 2 of the Detailed TRE Workplan were completed in April, and Step 3 (Phase I Toxicity Identification Evaluation, TIE, testing) has continued through June; however, no causative agents have been identified yet. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
396158 |
R4-2015-0072 |
N |
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