| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1119337 |
01/14/2023 |
UAUTHDISC |
Stormwater overtopped the Yeager Yard stormwater sediment basin and entered Permanente Creek upstream of receiving water monitoring location RSW-001. The flow rate is estimated to be from 100 to 312 gallons per minute; discharge occurred intermittently from January 14 through January 18. |
See attached 5-day letter. |
Violation |
B |
Report |
| 1119336 |
01/05/2023 |
UAUTHDISC |
Approximately 89,600 gallons of stormwater permitted by Order R2-2019-0024 to be discharged at Discharge Point 005 (from Pond 20) may have breached a berm and been discharged to Permanente Creek downstream of Discharge Point 005 and upstream of receiving water monitoring location RSW-004. |
The berm was repaired by about 11:30 am (about thirty minutes after being discovered). |
Violation |
B |
Report |
| 1107881 |
07/29/2022 |
Order Conditions |
Lehigh previously notified the Regional Water Board on July 29, 2022 (initial reporting), August 3, 2022 (5-day Report), and thereafter in August 2022 (follow up information, such as lab reports and biological assessment) of an unauthorized discharge of potable water from the Fresh Water Tank. The details of that event are set forth in the reports previously submitted. |
Lehigh removed the out of use section of pipe and placed a blind flange at the connection point to block off flow. The potable water supply pipeline will be evaluated by a professional engineer to assess the condition of the pipeline and suggest additional improvements, as warranted |
Violation |
A |
eSMR |
| 1104648 |
04/30/2022 |
CAT1 |
Settleable Solids Monthly Average limit is 0.10 ml/L/hr and reported value was 0.20 ml/L/hr at EFF-005. |
Lehigh augmented and refreshed BMPs on April 16, 2022. Additional details of corrective actions taken are described in the 5-day report. |
Violation |
B |
eSMR |
| 1087646 |
01/26/2021 |
UAUTHDISC |
An unauthorized chlorinated potable water discharge to Permanente Creek on January 26, 2021. The Discharger stated that it did not observe impacts to aquatic life. |
|
Violation |
B |
Report |
| 1087645 |
03/18/2020 |
UAUTHDISC |
An unauthorized chlorinated potable water discharge to Permanente Creek occurred from March 18 to 23, 2020 due to tank overflow. The Discharger stated that it did not observe adverse impacts to aquatic life in the receiving water, Permanente Creek. |
|
Violation |
B |
Report |
| 1070113 |
12/31/2019 |
CAT1 |
Settleable Solids Monthly Average limit is 0.10 ml/L/hr and reported value was 0.20 ml/L/hr at EFF-005. |
As communicated in the January 8, 2020 5-day report to RWQCB, Lehigh implemented corrective actions, which included reviewing the Stormwater Pollution Prevention Plan (SWPPP) and inspecting and refreshing BMPs placed upstream of the discharge point to ensure they are functioning as intended. The BMPs have proven effective in controlling solids in the previous years. Subsequent sampling will be completed during this wet season to evaluate the effectiveness of these corrective actions. |
Violation |
B |
eSMR |
| 1070112 |
12/18/2019 |
CAT2 |
Selenium, Total Recoverable Maximum Daily (MDEL) limit is 8.2 ug/L and reported value was 16 ug/L at EFF-001. |
On December 19, 2019, electronic floats were installed to control the diesel pump based on the water level of the bioreactor effluent tank similar to the float system P1100 normally operates under. In addition, on December 20, 2019, bioreactor production was adjusted to match the temporary diesel pump capacity. The modifications were successful in maintaining an optimal blend while the original pump was procured and replaced. The replacement electric driven pump (P1100) was received and is scheduled for installation no later than February 7, 2020. The replacement pump is an industrial duty pump, which is more durable and suitable for the operational requirements and application. Lehigh is also in the process of procuring and installing a process conductivity meter on the blend water to continuously monitor the quality of the bioeffluent and reverse osmosis permeate blend. Lehigh will program alarms to notify the operations personnel of any conductivity reading outside the optimal operating range. |
Violation |
B |
eSMR |
|
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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