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Lashley Addition WWTP

Regulation, Administration Of Utilities, Caldwell, Ohio. NPDES permit OH0144860, in force until Jun 30, 2031. Last 12 months: over a limit 13 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (23 values), outfall 300 form A monthly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
10 values over a limit, 0 required values missing, 0 of 25 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 13 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, monthly average36≤ 12 mg/L200%
October 2025Solids, total suspended, weekly maximum36≤ 18 mg/L100%
December 2025Solids, total suspended, monthly average14≤ 12 mg/L17%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average16≤ 10 mg/L60%
January 2026BOD, carbonaceous [5 day, 20 C], weekly maximum16≤ 15 mg/L7%
March 2026Solids, total suspended, monthly average13≤ 12 mg/L8%
June 2026E. coli, MTEC-MF, monthly geometric mean272≤ 126 MPN/100mL116%
June 2026Nitrogen, ammonia total [as N], weekly maximum2.66≤ 1.5 mg/L77%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average15≤ 10 mg/L50%
July 2026Nitrogen, ammonia total [as N], monthly average1.99≤ 1 mg/L99%
July 2026Nitrogen, ammonia total [as N], weekly maximum.0647≤ .051 kg/d27%
July 2026Nitrogen, ammonia total [as N], weekly maximum7.12≤ 1.5 mg/L375%
August 2026Nitrogen, ammonia total [as N], weekly maximum2.27≤ 1.5 mg/L51%

Limits in force (33)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Flow ratemonthly averagereport only (gal/d)all year001
Flow ratedaily maximumreport only (gal/d)all year001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendedweekly maximum≤ 18 mg/Lall year001
Solids, total suspendedmonthly average≤ .41 kg/dall year001
Solids, total suspendedweekly maximum≤ .61 kg/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 1.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .034 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .1 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .051 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ .15 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec001
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec001
Turbidity [severity]monthly averagereport only (severity)all year001
Turbidity [severity]daily maximumreport only (severity)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ .34 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ .51 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec588

How strict are these limits?

Cited limits by parameter: Ohio's rules and the federal ones.

Same industry: the 3 Administration of Economic Programs permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0144860 · MCP: https://passage-data.com/mcp