Violations
|
| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1121830 |
08/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 103 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In August, the effluent chloride result was 99.8 mg/L with a 3-month rolling average of 103 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
U |
eSMR |
| 1120980 |
07/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 104 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In July, the effluent chloride result was 102 mg/L with a 3-month rolling average of 104 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
U |
eSMR |
| 1120027 |
06/30/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 107 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In June, the effluent chloride result was 107 mg/L with a 3-month rolling average of 107 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 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. |
Per Section 4.1 of the WDR, the effluent exceeds the chronic toxicity monthly median effluent limit (MMEL) when the monthly median result fails the Test of Significant Toxicity (TST). The effluent chronic toxicity MMEL was exceeded in June 2023. The Regional Board Manager of the Watershed Section, Jeong-Hee Lim, was immediately notified by telephone at 2:30 p.m. on July 5, followed by written notification on July 10. Compliance was determined based on two Ceriodaphnia dubia toxicity bioassays conducted in June 2023. The first test was initiated on June 20 using 24-hour effluent composite samples collected on June 20, 21, and 23. Reproduction and survival effects of 52% and 40%, respectively, were observed in the undiluted effluent, which failed the test of significant toxicity (TST). An additional test was initiated on June 27 using 24-hour final effluent composite samples collected on June 27, 28, and 29. Reproduction and survival effects of 34.6% and 15%, respectively, were observed in the undiluted effluent, which failed the TST. |
Violation |
U |
eSMR |
| 1119178 |
05/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In May, the effluent chloride result was 104 mg/L with a 3-month rolling average of 110 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1118427 |
04/30/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In April, the effluent chloride result was 110 mg/L with a 3-month rolling average of 113 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1117793 |
03/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 112 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In March, the effluent chloride result was 116 mg/L with a 3-month rolling average of 112 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1116656 |
02/28/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In February, the effluent chloride result was 112 mg/L with a 3-month rolling average of 113 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1115387 |
01/31/2023 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In January, the effluent chloride result was 109 mg/L with a 3-month rolling average of 113 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1114567 |
12/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 114 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021, July 8, 2021, and December 8, 2022, adopted amended TSOs, R4-2019-0056-A01, R4-2019-0056-A02, and R4-2019-0056-A03, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In December, the effluent chloride result was 117 mg/L with a 3-month rolling average of 114 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1113284 |
11/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 111 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In November, the effluent chloride result was 112 mg/L with a 3-month rolling average of 111 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1112165 |
10/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 111 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In October, the effluent chloride result was 113 mg/L with a 3-month rolling average of 111 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1109617 |
10/16/2022 |
LREP |
Monthly SMR ( MONNPDES ) report for July 2022 (2593407) was due on 15-OCT-22 |
|
Violation |
B |
Report |
| 1111300 |
09/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 112 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In September, the effluent chloride result was 109 mg/L with a 3-month rolling average of 112 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1109968 |
08/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 114 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In August, the effluent chloride result was 111 mg/L with a 3-month rolling average of 114 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1109284 |
07/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Per Section 4.1.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In July, the effluent chloride result was 116 mg/L with a 3-month rolling average of 116 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1108187 |
06/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In June, the effluent chloride result was 116 mg/L with a 3-month rolling average of 116 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1107041 |
05/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In May, the effluent chloride result was 117 mg/L with a 3-month rolling average of 116 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 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. |
Per Section IV.3.d of the WDR, the single sample effluent limit for total coliform is 240 CFU/100mL. On May 4, 2022, laboratory staff collected a UV effluent sample for total coliform analysis at 8:36 a.m. and the result was 1 CFU/100mL; however, a final effluent grab sample was collected about an hour later after routing UV effluent through the chlorine contact tanks (CCTs) at 9:31 a.m. and the result was too-numerous-to-count (TNTC). Although, laboratory staff could not quantify that the concentration of total coliform was greater than 240 CFU/100mL, the TNTC result indicates that the total coliform limit was exceeded.
Upon having knowledge of the exceedance, the Sanitation District notified the Regional Board (Steven Webb) via voice message on May 23 at 7:09 a.m., followed by written notification on May 25, 2022.
Since the startup of the UV disinfection system, the Saugus WRP has been running the UV process in-series with the chlorination process. Here, UV is the primary disinfectant, but UV effluent flow is routed to the chlorine contact tanks (CCTs) where a small dose of chlorine is added for in-plant uses. However, on May 4, the sodium hypochlorite dosing system was offline to complete construction work on the sodium hypochlorite dosing system. Despite the low result seen in the UV effluent, the sample taken from the final effluent location after the chlorine contact tanks indicated the exceedance.
To prevent reoccurrence, the Sanitation District is evaluating engineering controls to ensure the effluent is adequately disinfected in case of future shutdowns of the sodium hypochlorite system. However, the Sanitation District believes future work requiring a complete shutdown of the sodium hypochlorite system will be rare.
|
Violation |
B |
eSMR |
| 1115304 |
05/01/2022 |
LREP |
Annual SMR ( PRETRPT ) report for 2021 (2709315) was due on 30-APR-22 |
|
Violation |
B |
Report |
| 1106105 |
05/01/2022 |
LREP |
Annual SMR ( PROGRPT ) (Chloride TMDL Task 3 Progress Report) report for 2022 (2612858) was due on 30-APR-22 |
|
Violation |
B |
Report |
| 1106155 |
04/30/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 118 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs, R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In April, the effluent chloride result was 116 mg/L with a 3-month rolling average of 118 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1105431 |
03/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In March, the effluent chloride result was 116 mg/L with a 3-month rolling average of 121 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1104099 |
02/28/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, respectively, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In February, the effluent chloride result was 122 mg/L with a 3-month rolling average of 121 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1103053 |
01/31/2022 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 121 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In January, the effluent chloride result was 126 mg/L with a 3-month rolling average of 121 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1102076 |
12/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In December, the effluent chloride result was 116 mg/L with a 3-month rolling average of 119 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1100571 |
11/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In November, the effluent chloride result was 120 mg/L with a 3-month rolling average of 119 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1099035 |
10/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 119 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In October, the effluent chloride result was 121 mg/L with a 3-month rolling average of 119 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1097948 |
09/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In September, the effluent chloride result was 116 mg/L with a 3-month rolling average of 117 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1096517 |
08/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 116 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In August, the effluent chloride result was 119 mg/L with a 3-month rolling average of 116 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1095217 |
07/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 115 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056 and on January 11, 2021 and July 8, 2021 adopted amended TSOs , R4-2019-0056-A01 and R4-2019-0056-A02, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In July, the effluent chloride result was 116 mg/L with a 3-month rolling average of 115 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1093960 |
06/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019 and January 11, 2021, the Regional Board adopted Time Schedule Orders (TSO) R4-2019-0056 and R4-2019-0056-A01, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit, but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In June, the effluent chloride result was 114 mg/L with a 3-month rolling average of 113 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1093147 |
05/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019 and January 11, 2021, the Regional Board adopted Time Schedule Orders (TSO) R4-2019-0056 and R4-2019-0056-A01, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit, but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In May, the effluent chloride result was 114 mg/L with a 3-month rolling average of 110 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1115303 |
05/01/2021 |
LREP |
Annual SMR ( PRETRPT ) report for 2020 (2709314) was due on 30-APR-21 |
|
Violation |
B |
Report |
| 1091994 |
04/30/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 104 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019 and January 11, 2021, the Regional Board adopted Time Schedule Orders (TSO) R4-2019-0056 and R4-2019-0056-A01, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit, but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In April, the effluent chloride result was 110 mg/L with a 3-month rolling average of 104 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1091106 |
03/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 104 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019 and January 11, 2021, the Regional Board adopted Time Schedule Orders (TSO) R4-2019-0056 and R4-2019-0056-A01, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit, but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In March, the effluent chloride result was 107 mg/L with a 3-month rolling average of 104 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1089903 |
02/28/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 103 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019 and January 11, 2021, the Regional Board adopted Time Schedule Orders (TSO) R4-2019-0056 and R4-2019-0056-A01, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit, but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In February, the effluent chloride result was 95.2 mg/L with a 3-month rolling average of 103 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1088877 |
01/31/2021 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 105 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019 and January 11, 2021, the Regional Board adopted Time Schedule Orders (TSO) R4-2019-0056 and R4-2019-0056-A01, which grant additional time for the construction of facilities that will enable compliance with this limit. The TSOs are separate enforcement orders that do not modify the existing NPDES permit, but do exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In January, the effluent chloride result was 111 mg/L with a 3-month rolling average of 105 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 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. |
The Monthly Median Effluent Limit (MMEL) for chronic toxicity was exceeded 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 using 24-hour composite effluent samples. 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 34.1% reproduction effect in the undiluted effluent. The second was initiated on January 19 using samples collected on January 18, 19, 22. This test failed the TST for the reproduction endpoint with 98.4% effect observed in the undiluted effluent. As a result, the MMEL was exceeded. The Saugus WRP effluent is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on April 15, 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 May 2020, and Step 3 (Phase I Toxicity Identification Evaluation testing) has continued through January; however, no causative agents have been identified yet. Because a separate TRE was being conducted for the receiving water station RSW-002D (R-B) and the Saugus WRP final effluent 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 |
B |
eSMR |
| 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. |
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 |
U |
eSMR |
| 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. |
The Daily Maximum Effluent Limit (MDEL) for chronic toxicity was exceeded on January 18. Per Section IV.A.1.a of the WDR, the effluent exceeds the chronic toxicity MDEL when the daily result fails the Test of Significant Toxicity (TST) and the corresponding endpoint has an effect greater than or equal to 50%. On January 19 toxicity testing was initiated using 24-hour composite samples collected on January 18, 19, and 22. This test failed the TST with 75.0% survival and 98.4% reproduction effects in undiluted effluent. As a result, the MDEL was exceeded. 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. The Saugus WRP effluent is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on April 15, 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 May 2020, and Step 3 (Phase I Toxicity Identification Evaluation testing) has continued through January; however, no causative agents have been identified yet. Because a separate TRE was being conducted for the receiving water station RSW-002D (R-B) and the Saugus WRP final effluent 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 |
B |
eSMR |
| 1087638 |
12/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 102 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In December, the effluent chloride result was 102 mg/L with a 3-month rolling average of 102 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 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. |
The Monthly Median Effluent Limit (MMEL) for chronic toxicity was exceeded for the month of December 2020. Regional Board staff was immediately notified by telephone at 3:13 PM on January 6, 2021, followed by written notification on January 8, 2021. Compliance was based on three valid Ceriodaphnia dubia chronic toxicity bioassays using 24-hour composite effluent samples. 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 26.1% reproduction effect in the undiluted effluent. The second was initiated on December 22 using samples collected on December 21, 22, and 24. This test passed the TST for the reproduction endpoint with 12.7% effect observed in the undiluted effluent. A third test was initiated on December 29 using samples collected on December 28, 29, and 31. This test failed the TST for the reproduction endpoint with 28.0% effect in undiluted effluent. As a result, the MMEL was exceeded. The Saugus WRP effluent is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on April 15, 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 May 2020, and Step 3 (Phase I Toxicity Identification Evaluation testing) has continued through December; however, no causative agents have been identified yet. Because a separate TRE was being conducted for the receiving water station RSW-002D (R-B) and the Saugus WRP final effluent 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 |
B |
eSMR |
| 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. |
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 |
U |
eSMR |
| 1085760 |
11/30/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 101 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In November, the effluent chloride result was 101 mg/L with a 3-month rolling average of 101 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 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. |
The Monthly Median Effluent Limit (MMEL) for chronic toxicity was exceeded 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 24-hour composite effluent samples. The first toxicity test was initiated on November 5 using samples collected on November 4, 7, and 9 This test failed the Test of Significant Toxicity (TST) with 49.0% reproduction effect in the undiluted effluent. 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 48.8% effect observed in the undiluted effluent. As a result, the MMEL was exceeded.
The Saugus WRP effluent is currently the subject of a Toxicity Reduction Evaluation (TRE), which was triggered on April 15, 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 May, and Step 3 (Phase I Toxicity Identification Evaluation testing) has continued through November; however, no causative agents have been identified yet. Because a separate TRE was being conducted for the receiving water station RSW-002D (R-B) and the Saugus WRP final effluent 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 |
B |
eSMR |
| 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.
|
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 |
U |
eSMR |
| 1080306 |
07/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 101 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In July, the effluent chloride result was 100 mg/L with a 3-month rolling average of 101 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 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.
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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 |
U |
eSMR |
| 1077977 |
05/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 102 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In May, the effluent chloride result was 102 mg/L with a 3-month rolling average of 102 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1077978 |
05/31/2020 |
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 May 2020 as a result of two valid Ceriodaphnia dubia toxicity tests. Immediate notification was provided via voice message to Ms. Jeong-Hee Lim on May 27, 2020 at 11:19 AM, followed by written notification on May 29.
Compliance was determined using the results of two Ceriodaphnia dubia chronic toxicity tests initiated on May 7 and 19. Grab samples for these tests were collected from receiving water station RSW-002D (R-B) on May 6, 8, and 11 and May 18, 20 and 22, respectively. Both tests failed the Test of Significant Toxicity (TST). The survival and reproduction endpoints in the undiluted receiving water samples were 0% and 22%, 0% and 53.4%, respectively. As a result, the median monthly threshold objective was exceeded; however, the final effluent passed the TST and was in compliance for May.
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) is underway; however, no causative agent(s) have been identified yet. |
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 May 2020 as a result of two valid Ceriodaphnia dubia toxicity tests. Immediate notification was provided via voice message to Ms. Jeong-Hee Lim on May 27, 2020 at 11:19 AM, followed by written notification on May 29.
Compliance was determined using the results of two Ceriodaphnia dubia chronic toxicity tests initiated on May 7 and 19. Grab samples for these tests were collected from receiving water station RSW-002D (R-B) on May 6, 8, and 11 and May 18, 20 and 22, respectively. Both tests failed the Test of Significant Toxicity (TST). The survival and reproduction endpoints in the undiluted receiving water samples were 0% and 22%, 0% and 53.4%, respectively. As a result, the median monthly threshold objective was exceeded; however, the final effluent passed the TST and was in compliance for May.
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) is underway; however, no causative agent(s) have been identified yet. |
Violation |
U |
eSMR |
| 1115302 |
05/01/2020 |
LREP |
Annual SMR ( PRETRPT ) report for 2019 (2709313) was due on 30-APR-20 |
|
Violation |
B |
Report |
| 1076902 |
04/30/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 106 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In April, the effluent chloride result was 99.2 mg/L with a 3-month rolling average of 106 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1076903 |
04/30/2020 |
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 April 2020. Immediate notification of this exceedance was provided by voice message to Jeong-Hee Lim of the Regional Board on May 7, 2020, at 7:04 a.m. and to Russ Colby and Jeong-Hee Lim via email on May 7. Written notification was provided on May 11, 2020.
Compliance was determined using the results of three Ceriodaphnia dubia chronic toxicity tests initiated on April 14, 22, and 28. The first test failed the Test of Significant Toxicity (TST), the second test passed, and the third test failed. The survival and reproduction endpoints in the undiluted receiving water samples for the three tests were 87.5% and 100%, 5.0% and 9.9%, and -11.1% and 24.7%, respectively. As a result, the median monthly threshold objective was exceeded; however, the final effluent passed the TST and was in compliance for April.
As previously reported, a Toxicity Reduction Evaluation (TRE) for RSW-002D (R-B) was already in progress following an accelerated test TST failure in February 2020. As part of the TRE process, Steps 1 and 2 and a screening test were completed. These steps did not identify the cause of toxicity; however, the screening test was toxic with 87.5% and 100% survival and reproduction effects, respectively, using an undiluted sample collected on April 13. In response, a Phase I Toxicity Identification Evaluation (TIE) will be conducted using the April 13 sample. The Sanitation Districts continue to follow the TRE Work Plan and will report results when available. |
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 April 2020. Immediate notification of this exceedance was provided by voice message to Jeong-Hee Lim of the Regional Board on May 7, 2020, at 7:04 a.m. and to Russ Colby and Jeong-Hee Lim via email on May 7. Written notification was provided on May 11, 2020.
Compliance was determined using the results of three Ceriodaphnia dubia chronic toxicity tests initiated on April 14, 22, and 28. The first test failed the Test of Significant Toxicity (TST), the second test passed, and the third test failed. The survival and reproduction endpoints in the undiluted receiving water samples for the three tests were 87.5% and 100%, 5.0% and 9.9%, and -11.1% and 24.7%, respectively. As a result, the median monthly threshold objective was exceeded; however, the final effluent passed the TST and was in compliance for April.
As previously reported, a Toxicity Reduction Evaluation (TRE) for RSW-002D (R-B) was already in progress following an accelerated test TST failure in February 2020. As part of the TRE process, Steps 1 and 2 and a screening test were completed. These steps did not identify the cause of toxicity; however, the screening test was toxic with 87.5% and 100% survival and reproduction effects, respectively, using an undiluted sample collected on April 13. In response, a Phase I Toxicity Identification Evaluation (TIE) will be conducted using the April 13 sample. The Sanitation Districts continue to follow the TRE Work Plan and will report results when available. |
Violation |
B |
eSMR |
| 1075658 |
03/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In March, the effluent chloride result was 106 mg/L with a 3-month rolling average of 110 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1075656 |
03/31/2020 |
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. |
The Monthly Median Effluent Limit (MMEL) for chronic toxicity was exceeded for the month of March 2020. Immediate notification of this exceedance was provided by voice message to Jeong-Hee Lim of the Regional Board on March 25, 2020, at 12:54 p.m. and to Russ Colby and Jeong-Hee Lim via email on March 25. Written notification was provided on March 26, 2020.
Compliance was based on two valid Ceriodaphnia dubia chronic toxicity bioassays conducted in March using 24-hour composite effluent samples. The first toxicity test was initiated on March 3 using samples collected on March 2, 4, and 6. This test failed the Test of Significant Toxicity (TST) with 21.2% reproduction effect in the undiluted effluent. The second test was initiated on March 17 using samples collected on March 16, 18, and 20. This test also failed the TST for the reproduction endpoint with 21.1% effect observed in the undiluted effluent. As a result, the MMEL was exceeded.
This exceedance prompted accelerated testing of the effluent. On March 24, the first accelerated test was initiated, and it passed the TST with 4.5% reproduction effect in undiluted effluent. Accelerated testing continued in April and the results will be reported when available. |
Violation |
B |
eSMR |
| 1075657 |
03/31/2020 |
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 March 2020. Immediate notification of this exceedance was provided by voice message to Jeong-Hee Lim of the Regional Board on April 3, 2020, at 11:10 a.m. and to Russ Colby and Jeong-Hee Lim via email on April 3. Written notification was provided on April 6, 2020.
Compliance was based on two valid Ceriodaphnia dubia chronic toxicity bioassays conducted in March 2020 using grab samples from receiving water station RSW-002D (R-B). The first test was initiated on March 3 using samples collected March 2, 4, and 6. This test failed the TST with 32.5% reproduction effect in the undiluted sample. The second test was initiated March 27 using grab samples collected on March 26, 27, and 30. It also failed the TST for the reproduction endpoint with 28.9% effect observed in the undiluted sample. As a result, the monthly median threshold objective was exceeded.
As previously reported, the TRE for RSW-002D (R-B) was already in progress following an accelerated test TST failure in February 2020. As part of the TRE process, Steps 1 and 2 of the TRE were initiated and the testing frequency was increased to monthly beginning in March. In addition, a full phase I Toxicity Identification Evaluation (TIE) was conducted using a composite of the three samples associated with the accelerated test failure. The TIE results did not provide any additional information because the un-diluted composite sample was non-toxic (i.e., passed the TST with -13.7% reproduction effect). The TRE Work Plan continues, and results will be reported when available. |
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 March 2020. Immediate notification of this exceedance was provided by voice message to Jeong-Hee Lim of the Regional Board on April 3, 2020, at 11:10 a.m. and to Russ Colby and Jeong-Hee Lim via email on April 3. Written notification was provided on April 6, 2020.
Compliance was based on two valid Ceriodaphnia dubia chronic toxicity bioassays conducted in March 2020 using grab samples from receiving water station RSW-002D (R-B). The first test was initiated on March 3 using samples collected March 2, 4, and 6. This test failed the TST with 32.5% reproduction effect in the undiluted sample. The second test was initiated March 27 using grab samples collected on March 26, 27, and 30. It also failed the TST for the reproduction endpoint with 28.9% effect observed in the undiluted sample. As a result, the monthly median threshold objective was exceeded.
As previously reported, the TRE for RSW-002D (R-B) was already in progress following an accelerated test TST failure in February 2020. As part of the TRE process, Steps 1 and 2 of the TRE were initiated and the testing frequency was increased to monthly beginning in March. In addition, a full phase I Toxicity Identification Evaluation (TIE) was conducted using a composite of the three samples associated with the accelerated test failure. The TIE results did not provide any additional information because the un-diluted composite sample was non-toxic (i.e., passed the TST with -13.7% reproduction effect). The TRE Work Plan continues, and results will be reported when available. |
Violation |
B |
eSMR |
| 1074395 |
02/29/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In February, the effluent chloride result was 114 mg/L with a 3-month rolling average of 110 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1074394 |
02/29/2020 |
Surface Water |
Per Section V.A.19.a 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.1 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 February 2020. Immediate notification of this exceedance was provided by phone to Jeong-Hee Lim of the Regional Board on March 6, 2020, at 12:51 p.m., and written notification was provided on March 10, 2020.
Compliance was based on three valid Ceriodaphnia dubia chronic toxicity bioassays initiated on February 11, 18, and 26 using grab samples from receiving water station RSW-002D (R-B). The February 11 toxicity test passed the Test for Significant Toxicity (TST) with a 1.4% effect in undiluted sample, but the February 18 and 26 toxicity tests failed the TST, both with 43.1% reproduction effects in undiluted sample. As a result, the median monthly threshold objective was exceeded. These tests were also part of accelerated testing, following an exceedance of the median monthly threshold objective in January 2020. The February 18 TST failure triggered the Toxicity Reduction Evaluation (TRE) process. The TRE Workplan was initiated on February 27 and results will be provided with future compliance reports as well as the final TRE report. |
Per Section V.A.19.a 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.1 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 February 2020. Immediate notification of this exceedance was provided by phone to Jeong-Hee Lim of the Regional Board on March 6, 2020, at 12:51 p.m., and written notification was provided on March 10, 2020.
Compliance was based on three valid Ceriodaphnia dubia chronic toxicity bioassays initiated on February 11, 18, and 26 using grab samples from receiving water station RSW-002D (R-B). The February 11 toxicity test passed the Test for Significant Toxicity (TST) with a 1.4% effect in undiluted sample, but the February 18 and 26 toxicity tests failed the TST, both with 43.1% reproduction effects in undiluted sample. As a result, the median monthly threshold objective was exceeded. These tests were also part of accelerated testing, following an exceedance of the median monthly threshold objective in January 2020. The February 18 TST failure triggered the Toxicity Reduction Evaluation (TRE) process. The TRE Workplan was initiated on February 27 and results will be provided with future compliance reports as well as the final TRE report. |
Violation |
B |
eSMR |
| 1072657 |
01/31/2020 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 110 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In January, the effluent chloride result was 110 mg/L with a 3-month rolling average of 110 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1072656 |
01/31/2020 |
CTOX |
Chronic Toxicity (Species 1) 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. |
The median monthly effluent limit (MMEL) for chronic toxicity was exceeded at EFF-001 in January 2020. This was determined using the results of two Ceriodaphnia dubia chronic toxicity tests initiated on January 9 and 21, 2020; the two tests failed the test of significant toxicity (TST). Immediate notification of the exceedance was provided to the Regional Board via phone to Jeong-Hee Lim of the Municipal Permitting Unit on January 28, 2020, and written notification was provided on January 29, 2020. Accelerated testing began on January 30, 2020. |
Violation |
B |
eSMR |
| 1072658 |
01/31/2020 |
Surface Water |
The narrative receiving water objective for chronic toxicity was exceeded at RSW-002D (R-B) in January 2020. This was determined using the results of two Ceriodaphnia dubia chronic toxicity tests initiated on January 9 and 21, 2020; the two tests failed the test of significant toxicity (TST). Immediate notification of the exceedance was provided to the Regional Board via phone to Jeong-Hee Lim of the Municipal Permitting Unit on January 28, 2020, and written notification was provided on January 29, 2020. Accelerated testing began on January 30, 2020. |
The narrative receiving water objective for chronic toxicity was exceeded at RSW-002D (R-B) in January 2020. This was determined using the results of two Ceriodaphnia dubia chronic toxicity tests initiated on January 9 and 21, 2020; the two tests failed the test of significant toxicity (TST). Immediate notification of the exceedance was provided to the Regional Board via phone to Jeong-Hee Lim of the Municipal Permitting Unit on January 28, 2020, and written notification was provided on January 29, 2020. Accelerated testing began on January 30, 2020. |
Violation |
B |
eSMR |
| 1071677 |
12/31/2019 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 113 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In December, the effluent chloride result was 105 mg/L with a 3-month rolling average of 113 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1070660 |
11/30/2019 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In November, the effluent chloride result was 116 mg/L with a 3-month rolling average of 117 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1069325 |
10/31/2019 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In October, the effluent chloride result was 118 mg/L with a 3-month rolling average of 117 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1067948 |
09/30/2019 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In September, the effluent chloride result was 116 mg/L with a 3-month rolling average of 117 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1066626 |
08/31/2019 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 117 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In August, the effluent chloride result was 116 mg/L with a 3-month rolling average of 117 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1065323 |
07/31/2019 |
CAT1 |
Chloride Other limit is 100 mg/L and reported value was 115 mg/L at EFF-001. |
Per Section IV.A.1.a of the WDR, the chloride effluent limit for the Saugus WRP is 100 mg/L as a 3-month rolling average. On May 9, 2019, the Regional Board adopted Time Schedule Order (TSO) R4-2019-0056, which grants additional time for the construction of facilities that will enable compliance with this limit. The TSO is a separate enforcement order that does not modify the existing NPDES permit, but does exempt the Sanitation District from mandatory minimum penalties (MMPs) for violations of the chloride limit as long as the TSO requirements are fully met. In July, the effluent chloride result was 119 mg/L with a 3-month rolling average of 115 mg/L, which exceeds the NPDES permit limit. The Sanitation District was in full compliance with the TSO; therefore, MMPs are not applicable. |
Violation |
B |
eSMR |
| 1063848 |
06/18/2019 |
Surface Water |
Per Section V.A.16 of the Permit, the discharge shall not result in visible floating particulates, foams, or oil and grease in the receiving water. On June 18 at 12:31 p.m., Sanitation District''s staff observed foam coming from the Saugus WRP Discharge Point 001 and traveling to RSW-002D (R-B), and immediately contacted the Saugus WRP Operations staff, who increased the defoamant dose at approximately 3 p.m. At 1:29 p.m. the sampling crew returned to RSW-002D (R-B) and observed that the foam had dissipated. Although the observed foam was episodic in nature, the Sanitation District''s staff will continue to monitor water quality in the effluent and receiving waters, and will continue the normal procedures of conducting visual inspections of the outfall and increasing defoamant dose if foam is observed. This incident was verified at 2:35 p.m. on June 20, 2019, reported to the Regional Board via voicemail at 6:08 a.m. on June 21, 2019, and confirmed in writing on June 25, 2019. |
Per Section V.A.16 of the Permit, the discharge shall not result in visible floating particulates, foams, or oil and grease in the receiving water. On June 18 at 12:31 p.m., Sanitation District's staff observed foam coming from the Saugus WRP Discharge Point 001 and traveling to RSW-002D (R-B), and immediately contacted the Saugus WRP Operations staff, who increased the defoamant dose at approximately 3 p.m. At 1:29 p.m. the sampling crew returned to RSW-002D (R-B) and observed that the foam had dissipated. Although the observed foam was episodic in nature, the Sanitation District's staff will continue to monitor water quality in the effluent and receiving waters, and will continue the normal procedures of conducting visual inspections of the outfall and increasing defoamant dose if foam is observed. This incident was verified at 2:35 p.m. on June 20, 2019, reported to the Regional Board via voicemail at 6:08 a.m. on June 21, 2019, and confirmed in writing on June 25, 2019. |
Violation |
B |
eSMR |
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Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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Total Violations: 69
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Priority Violations: 0
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*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.
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CAT1 = Category 1 Pollutant (Effluent Violation for Group 1 Pollutant)
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CTOX = Chronic Toxicity
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LREP = Late Report
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OEV = Other Effluent Violation
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Surface Water = Surface Water
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