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Mccandless TWP Sani Auth Allegheny Cnty

Sewage treatment plant, Pittsburgh, Pennsylvania. NPDES permit PA0028193, in force until Dec 31, 2027. Last 12 months: over a limit once (last November 2025), 30 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (30 values), form Q quarterly, form Y yearly
Renewal application due
Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 17 reports late

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

Period endingParameterReportedLimitOver by
November 2025Copper, total [as Cu], daily maximum161 ug/L≤ 150 ug/L7%

Limits in force (37)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 25 mg/Lall year
Solids, total suspendedweekly average≤ 37.5 mg/Lall year
Solids, total suspendedmonthly average≤ 20 lb/dall year
Solids, total suspendedweekly average≤ 31 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.9 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 2.5 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.5 lb/dMay–Oct
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Copper, total [as Cu]monthly average≤ 60 ug/Lall year
Copper, total [as Cu]daily maximum≤ 150 ug/Lall year
Copper, total [as Cu]monthly average≤ .05 lb/dall year
Copper, total [as Cu]daily maximum≤ .125 lb/dall year
Zinc, total [as Zn]monthly averagereport only (ug/L)all year
Zinc, total [as Zn]daily maximumreport only (ug/L)all year
Zinc, total [as Zn]monthly averagereport only (lb/d)all year
Zinc, total [as Zn]daily maximumreport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. coliinstantaneous maximumreport only (#/100mL)all year
Ultraviolet light transmittanceinstantaneous minimumreport only (%)all year
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 12 lb/dall year

New limits from Dec 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Copper, total [as Cu], daily maximum17 ug/Ltighter23 ug/L (9 values, 1 below detection)1.35×
Copper, total [as Cu], monthly average0.008 lb/dtighter0.01 lb/d (9 values, 1 below detection)1.25×
Copper, total [as Cu], monthly average10.1 ug/Ltighter18.5 ug/L (9 values, 1 below detection)1.83×
Copper, total [as Cu], daily maximum0.014 lb/dtighter0.01 lb/d (9 values, 1 below detection)0.714×

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0028193 · MCP: https://passage-data.com/mcp