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Violations within the past year
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| Violation ID |
Occurrence Date |
Violation Type |
Violation Description(-) |
Violation Status |
Priority |
Source |
Facility Name |
Violated Reg. Meas. ID |
Violated Reg. Meas. Order No. |
Linked to Enf. |
| 1143334 |
02/19/2025 |
Deficient Monitoring |
Per Section 4.1 of the MRP, continuous monitoring of total residual chlorine shall serve as a trigger for increased grab sampling for total residual chlorine excursions of up to 0.3 mg/L lasting more than 15 minutes or excursions between 0.1 to 0.3 mg/L lasting longer than 15 minutes. At 11:50 a.m. on February 19, the Valencia WRP temporarily lost power while testing the emergency generators. The emergency generators turned on; however, there was a slight delay, resulting in temporary power loss at the Valencia WRP. As a result, the UV disinfection system was shut down, and all effluent flow was routed to the chlorine contact tanks for disinfection. During this transition, the metered final effluent total residual chlorine exceeded 0.3 mg/L for approximately 8 minutes and remained between 0.1 and 0.3 mg/L for approximately 16 minutes, triggering collection of an additional grab sample. At 12:25 p.m., a grab sample was collected, and chlorine was not detected; however, collection and analysis did not follow analytical method protocols. As a result, the non-detect result was not reportable. Despite this, sodium bisulfite, the dechlorination chemical, was dosed more than the stoichiometric amount needed to fully dechlorinate the effluent; therefore, the effluent was fully dechlorinated. To prevent reoccurrence, the Sanitation District will implement procedures to ensure all additional grab samples collected for total residual chlorine analysis follow analytical method protocols. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
| 1143333 |
02/28/2025 |
Deficient Monitoring |
Per Section 4.1 of the MRP, effluent samples shall be analyzed monthly for dissolved oxygen (DO). An effluent sample was not collected in February because of a laboratory analyst error. A make-up sample was collected on March 3, and the DO result will be included in the March report. To prevent this issue from reoccurring, analysts were reminded to carefully check that all required monitoring samples are collected within the required timeframes. |
Violation |
N |
eSMR |
Valencia WRP |
435564 |
R4-2022-0174 |
N |
| 1137438 |
09/30/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
| 1135990 |
08/31/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 % effect and reported value was 1 % effect at EFF-001. |
Violation |
N |
eSMR |
Saugus Water Reclamation Plant |
442544 |
R4-2022-0175 |
N |
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Report defaults to display violations within the last year. Click here to see last five years of violations. Refer to the Interactive Violation Report for more data.
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Total Violations: 4
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*Click the "(+/-) Violation Description" link to expand and contract the violation description.
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