| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1126684 |
03/06/2024 |
CTOX |
Chronic Toxicity-Sea Urchin or Sand Dollar-Fertilization Daily Maximum limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Tesoro promptly discontinued the discharge and verbally notified the RWQCB of the chronic toxicity failure. Tesoro instructed the analytical laboratory (Enthalpy Analytical) to conduct a Toxicity Identification Evaluation (TIE) using the remaining sample at the lab. Prior to initiating the TIE the laboratory analyzed the sample again for chronic toxicity which the sample passed and the TIE was discontinued. A TIE cannot be conducted once a sample is not toxic. Tesoro will implement the accelerated monitoring program during the first hour of the next discharge. The accelerated monitoring schedule will consist of a five concentration dilution series which includes the control with five dilutions, one of which will be the In-stream Waste Concentration (IWC). The testing will be repeated up to a maximum of four times, conducted in approximately two-week intervals as long as discharging continues and the chronic toxicity test results in a ¿Fail¿. |
Violation |
U |
eSMR |
| 1126683 |
02/06/2024 |
OEV |
Enterococci Daily Maximum limit is 110 MPN/100 mL and reported value was 390 MPN/100 mL at EFF-001. |
Tesoro discontinued the discharge and notified the RWQCB. Tesoro resampled for enterococci on February 9, 2024 and the sample was below the permit limit. |
Violation |
U |
eSMR |
| 1139744 |
02/06/2024 |
OEV |
Enterococci Daily Maximum limit is 110 MPN/100 mL and reported value was 390 MPN/100 mL at EFF-001. |
Tesoro discontinued the discharge and notified the RWQCB. Tesoro resampled for enterococci on February 9, 2024 and the sample was below the permit limit. |
Violation |
U |
eSMR |
| 1139743 |
02/06/2024 |
CTOX |
Chronic Toxicity 1-Hour Average (Mean) limit is 0 Pass/Fail (Pass = 0, Fail = 1) and reported value was 1 Pass/Fail (Pass = 0, Fail = 1) at EFF-001. |
Tesoro promptly discontinued the discharge and verbally notified the RWQCB of the chronic toxicity failure. Tesoro instructed the analytical laboratory (Enthalpy Analytical) to conduct a Toxicity Identification Evaluation (TIE) using the remaining sample at the lab. Prior to initiating the TIE the laboratory analyzed the sample again for chronic toxicity which the sample passed and the TIE was discontinued. A TIE cannot be conducted once a sample is not toxic. Tesoro will implement the accelerated monitoring program during the first hour of the next discharge. The accelerated monitoring schedule will consist of a five concentration dilution series which includes the control with five dilutions, one of which will be the In-stream Waste Concentration (IWC). The testing will be repeated up to a maximum of four times, conducted in approximately two-week intervals as long as discharging continues and the chronic toxicity test results in a ¿Fail¿. |
Violation |
U |
eSMR |
| 1117189 |
03/29/2023 |
OEV |
Enterococci Single Sample Maximum limit is 104 MPN/100 mL and reported value was 690 MPN/100 mL at M-001. |
|
Violation |
B |
Report |
| 1116211 |
03/29/2023 |
OEV |
Enterococci Single Sample Maximum limit is 110 MPN/100 mL and reported value was 690 MPN/100 mL at EFF-001. |
The discharge was terminated immediatly upon receipt of the lab report indicating the exceedance. |
Violation |
U |
eSMR |
| 1123531 |
03/29/2023 |
Surface Water |
Enterococci single sample maximum limit is 110/MPN/100 mL and reported value was 690 MPN/100 mL. |
The discharge was terminated upon receipt of the lab report indicating the exceedance. |
Violation |
U |
eSMR |
| 1097997 |
12/02/2021 |
LREP |
Once Only OneTime ( TECHRPT ) (Climate Change Plan) report for 2020/12/01 (2389757) was due on 01-DEC-21 |
|
Violation |
B |
Report |
|
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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