EmissionsLookup
Non-Compliance Clean Water Act

DAVIS WATER POLLUTION CONTROL PLANT

Quick Summary

  • •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
  • •Assessed $24,000 in total penalties since records began.
Address
45400 COUNTY RD. 28H
DAVIS, CA 95618
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County
YOLO County
Industry
Utilities
NAICS (North American Industry Classification)
221320
Inspections
2 · last Jun 21, 2024
Total Penalties
$24,000 · last Jan 27, 2022
Registry ID
110000717742

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

1
Water (CWA)
Qtrs Non-Compliant

Compliance Violations

Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.

Program Type Violation Date Return to Compliance Status
cwa Pretreatment - Failure to submit required report (non-DMR) Dec 31, 2020 — Open
cwa Monitoring Violations - Analysis not Conducted May 31, 2019 May 7, 2020 Resolved

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant Violation Reported Limit Exceedance Period Status
Coliform, total general DMR, Limited - Numeric Violation 920.00 MPN/100mL 23.00 +3,900% May 2024 Open
Coliform, total general DMR, Limited - Numeric Violation 920.00 MPN/100mL 240.00 +283% May 2024 Open
Chlorine, total residual DMR, Limited - Numeric Violation 0.10 mg/L 0.02 +426% May 2023 Open
Chlorine, total residual DMR, Limited - Numeric Violation 4.45 mg/L 0.02 +23,321% Mar 2021 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 0.09 mg/L 0.01 +718% Mar 2021 Resolved
Chlorine, total residual DMR, Limited - Overdue 0.02 mg/L 0.01 +91% Jan 2021 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 2.11 mg/L 0.02 +11,005% Jan 2021 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +91% Jan 2021 Resolved
Chlorine, total residual DMR, Limited - Overdue 2.11 mg/L 0.02 +11,005% Jan 2021 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 0.38 mg/L 0.02 +1,900% Apr 2020 Open
Coliform, total general DMR, Limited - Numeric Violation 4.50 MPN/100mL 2.20 +105% Jun 2019 Open
Coliform, total general DMR, Limited - Numeric Violation 7.80 MPN/100mL 2.20 +255% May 2019 Open
Coliform, total general DMR, Limited - Numeric Violation 63.00 MPN/100mL 23.00 +174% Apr 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 4.30 mg/L 3.30 +30% Jan 2019 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 60.00 mg/L 20.00 +200% Jul 2018 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 4.30 mg/L 4.00 +8% Apr 2018 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 9.40 mg/L 10.00 +99,999% Oct 2017 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 9.40 mg/L 20.00 +99,999% Oct 2017 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 63.56 kg/d 286.02 +99,999% Oct 2017 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 8.90 mg/L 90.00 +99,999% Sep 2017 Open
Cyanide, total [as CN] DMR, Limited - Numeric Violation 0.03 mg/L 0.01 +181% Jul 2017 Resolved
Cyanide, total [as CN] DMR, Limited - Numeric Violation 0.03 mg/L 0.02 +50% Jul 2017 Resolved
Chlorine, total residual DMR, Limited - Overdue 0.10 mg/L 0.01 +809% Jan 2017 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 5.00 mg/L 0.02 +26,216% Jan 2017 Open
Chlorine, total residual DMR, Limited - Overdue 5.00 mg/L 0.02 +26,216% Jan 2017 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 0.10 mg/L 0.01 +809% Jan 2017 Open
Chlorine, total residual DMR, Limited - Numeric Violation 4.20 mg/L 0.01 +38,082% Mar 2016 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 5.80 mg/L 0.02 +30,426% Mar 2016 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 5.36 mg/L 0.02 +28,111% Feb 2016 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 1.34 mg/L 0.01 +12,082% Feb 2016 Resolved
Coliform, total general DMR, Limited - Numeric Violation 1,600.00 MPN/100mL 500.00 +220% Jan 2016 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 34.00 mg/L 30.00 +13% Oct 2015 Open

Enforcement Actions

Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.

State CWA Non Penalty AO
Clean Water Act · Case CA-CFEA461833 · Jun 20, 2025
State CWA Penalty AO
Clean Water Act · Case CA-CFEA445589 · Jan 27, 2022
$24,000
State CWA Penalty AO
Clean Water Act · Case CA-CFEA435813 · Nov 18, 2019
$42,000
State CWA Penalty AO
Clean Water Act · Case CA-CFEA416206 · Oct 3, 2017
$21,000
State CWA Non Penalty AO
Clean Water Act · Case CA-2015-1010 · Dec 5, 2014
State CWA Non Penalty AO
Clean Water Act · Case CA-2014-1001 · Oct 4, 2013
State CWA Non Penalty AO
Clean Water Act · Case CA-2010-1024 · Mar 18, 2010
State CWA Penalty AO
Clean Water Act · Case CA-2009-1030 · Nov 10, 2008
CWA 309A AO For Compliance
Clean Water Act · Case 09-1989-N007 · Dec 15, 1988

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