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General Information
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| Region |
Place ID |
Place Name |
Place Type |
Place Address |
Place County |
| 2 |
202451 |
Former McKesson Facility |
Groundwater Cleanup Site |
33950 Seventh Union City, CA, 94587 |
Alameda |
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Related Parties
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Total Related Parties: 4
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Regulatory Measures
|
| Reg Measure ID |
Reg Measure Type |
Region |
Program |
Order No. |
WDID |
Effective Date |
Expiration Date |
Status |
Amended? |
| 162031 |
Unregulated |
2 |
UST |
|
2 019211N01 |
|
|
Never Active |
N |
| 179981 |
Enrollee |
2 |
NPDNONMUNIPRCS |
R2-2004-0055 |
2 019211002 |
|
07/21/2009 |
Historical |
N |
| 162030 |
Unregulated |
2 |
UNREGS |
|
2 019211N01 |
|
|
Never Active |
N |
| 397946 |
Enrollee - NPDES |
2 |
NPDNONMUNIPRCS |
R2-2017-0048 |
2 019211003 |
08/25/2014 |
09/01/2022 |
Active |
N |
| 372530 |
Enrollee |
2 |
NPDNONMUNIPRCS |
R2-2009-0059 |
2 019211002 |
11/17/2009 |
09/30/2014 |
Historical |
N |
| 141809 |
NPDES Permit |
2 |
NPDNONMUNIPRCS |
95-00708 |
2 019211002 |
01/18/1995 |
|
Historical |
N |
| 141816 |
NPDES Permit |
2 |
NPDNONMUNIPRCS |
90-057 |
2 019211002 |
05/16/1990 |
01/18/1995 |
Historical |
N |
|
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Total Reg Measures: 7
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Violations
|
| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1125162 |
08/14/2023 |
UAUTHDISC |
It was reported that the spill occurred when an excavator struck the outer- 4-inch containment pipe and inner 2-inch carrier pipe while removing soil for remediation. The result was up to 5 gallons of untreated groundwater being released into a concentrated area over an estimated 7 minutes. The discharger states most spillage was contained within secondary piping. |
The discharger states they have implemented procedures that will prevent recurrence. Actions include a McKessons' system operator being on site when excavation activities occur near the conveyance pipelines. Field crews conducting the excavations will be aware of the protections required in the Groundwater Relocation Implementation Protection Plan and the spotters will cross check the elevation of the excavation with the operator. The discharger is also pending approval for two other corrective actions. They would like to implement management that would see groundwater treatment systems turned off during active soil remediation and pipeline within the Station East Development area drained to prevent future strikes from releasing untreated groundwater. |
Violation |
B |
Report |
| 1116635 |
04/16/2023 |
UAUTHDISC |
Unauthorized discharge. Overflow of untreated groundwater from the treatment system. On April 16 at 5:10am, the transfer pump conveying wastewater from a 1,600 influent equalization tank shut down, when an alarm control system relay switch connected to it burned. The control system shared its electrical circuit with the system's alarm system. As a result of this event, the equalization tank continued filling and consequently overflowing. The float switches installed in the sump surrounding the treatment system also failed to activate and shut down the system, as they were in the same failed circuit. The Discharger became aware of the spill through remote motion-sensing cameras at the facility. The spill ended at about 12pm that same day. About 55,800 gallons of untreated groundwater were released and reached an onsite storm drain. The storm drain system outfalls to an Alameda County Flood District channel that ultimately discharges to Alameda Creek. About 2,800 gallons of untreated groundwater remained in the sump and were redirected to the treatment system. The Discharger states that no impacts to receiving waters were seen. Communication with ACWD also shows that that flood channel at the storm drain outfall was dry when it was inspected on April 19, 2023. |
As a corrective action, the Discharger shut down the treatment system upon becoming aware of the spill through the remote motion-sensing cameras. The failsafe alarms that trigger system shutdown were rewired on a separate circuit and no longer share it with any other system component - thus eliminating disruption of high-level alarms by other system components through short-circuits. The failsafe alarm will turn off the treatment system if it loses power supply. Additional high-level control float switches were added to the equalization tank and floor sump were added to provide system redundancy. The system's control panel was also rewired to shut down the treatment system in case of loss of power supply. A new secondary and redundant fail-safe alarm system was also installed and properly tested to function as back-up.
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Violation |
B |
Report |
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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: 2
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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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| Violation Types |
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UAUTHDISC = Unauthorized Discharge
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Enforcement Actions
|
| Enf Id |
Enf Type |
Enf Order No. |
Effective Date |
Status |
| 387234 |
Admin Civil Liability |
R2-2013-1003 |
01/22/2013 |
Historical |
| 388131 |
Oral Communication |
|
08/10/2012 |
Historical |
| 221607 |
Clean-up and Abatement Order |
99-071 |
09/15/1999 |
Active |
| 224419 |
Clean-up and Abatement Order |
99-071 |
09/15/1999 |
Active |
| 224420 |
13267 Letter |
|
08/19/1999 |
Historical |
| 220271 |
Clean-up and Abatement Order |
88-104 |
06/15/1988 |
Historical |
| 219596 |
Clean-up and Abatement Order |
86-003 |
02/19/1986 |
Historical |
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Total Enf Actions: 7
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Inspections
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|
| Total Inspections: 1 |
Last Inspection: 02/14/1995 |
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