EmissionsLookup
Non-Compliance Clean Water Act

HAWKEN SCHOOL

Quick Summary

  • Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
  • Assessed $0 in total penalties since records began.
Address
12465 CO LINE RD
GATES MILLS, OH 44040
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County
CUYAHOGA County
Inspections
1 · last Apr 14, 2025
Total Penalties
$0
Registry ID
110006320953

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.

5
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 Schedule Event achieved late but reported Jun 1, 2004 Open

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
Solids, total suspended DMR, Limited - Numeric Violation 1.20 kg/d 0.85 +41% Sep 2025 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.09 kg/d 0.09 +6% May 2025 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.09 kg/d 0.06 +58% May 2025 Open
Solids, total suspended DMR, Limited - Numeric Violation 17.00 mg/L 12.00 +42% Jun 2024 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 3.16 kg/d 0.17 +1,759% Jan 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 34.23 mg/L 4.50 +661% Jan 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 3.16 kg/d 0.26 +1,116% Jan 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 34.23 mg/L 3.00 +1,041% Jan 2023 Open
BOD, carbonaceous [5 day, 20 C] DMR, Limited - Numeric Violation 0.64 kg/d 0.57 +12% Jan 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 4.40 mg/L 1.50 +193% Oct 2021 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.11 kg/d 0.09 +29% Oct 2021 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 2.30 mg/L 1.00 +130% Oct 2021 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.06 kg/d 0.06 +2% Oct 2021 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 291.00 MPN/100mL 284.00 +2% Oct 2020 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 600.00 MPN/100mL 284.00 +111% Sep 2020 Open
Solids, total suspended DMR, Limited - Numeric Violation 16.00 mg/L 12.00 +33% Oct 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 9.37 mg/L 1.50 +525% Oct 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 4.10 mg/L 1.00 +310% Oct 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.21 kg/d 0.09 +145% Oct 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.09 kg/d 0.06 +59% Oct 2019 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 1,500.00 MPN/100mL 362.00 +314% Jun 2017 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 1,200.00 MPN/100mL 362.00 +231% Aug 2016 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.14 kg/d 0.06 +139% Sep 2015 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 11.33 mg/L 1.50 +655% Sep 2015 Open
E. coli, MTEC-MF DMR, Limited - Numeric Violation 300.00 MPN/100mL 161.00 +86% Sep 2015 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 8.33 mg/L 1.00 +733% Sep 2015 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 0.19 kg/d 0.09 +127% Sep 2015 Open
BOD, carbonaceous [5 day, 20 C] DMR, Limited - Numeric Violation 15.60 mg/L 15.00 +4% Jun 2015 Open
BOD, carbonaceous [5 day, 20 C] DMR, Limited - Numeric Violation 15.60 mg/L 10.00 +56% Jun 2015 Open

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