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Tohi LLC

Sewerage Systems, Quakertown, Pennsylvania. NPDES permit PA0058564 expired Jul 31, 2019; its limits still apply. Last 12 months: no values over a limit, 143 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (14 values), form Q quarterly (1 value)
Last report on file
None
Oct 2024 – Sep 2025
0 values over a limit, 172 required values missing, 0 of 16 reports late

Limits in force (18)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrite + Nitrate total [as N]monthly average≤ 10 mg/Lall year
Phosphorus, total [as P]monthly average≤ .5 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year
Chlorine, total residualmonthly average≤ .5 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ .9 mg/Lall year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Coliform, fecal generalgeometric mean≤ 50 CFU/100mLMay–Sep
Coliform, fecal generalgeometric mean≤ 50 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 CFU/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 1000 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0058564 · MCP: https://passage-data.com/mcp