Passage Data · Check a report · Use it from your AI

Harford TWP Susquehanna Cnty

Sewage treatment plant, Harford, Pennsylvania. NPDES permit PA0063100, in force until Dec 31, 2028. Last 12 months: no values over a limit, 44 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (36 values), outfall 001 form Q quarterly (1 value), outfall 101 form A monthly (8 values), outfall 001 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 29 reports late

Limits in force (67)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/Lall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 60 mg/Lall year001
Solids, total suspendedmonthly average≤ 12.5 lb/dall year001
Solids, total suspendeddaily maximumreport only (lb/d)all year001
Nitrogen, total [as N]annual averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, total [as N]annual averagereport only (lb/d)all year001
Nitrogen, total [as N]daily maximumreport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 20.22 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 6.74 mg/LMay–Oct001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 13.48 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 8.1 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 lb/dMay–Oct001
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)May–Oct001
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]annual averagereport only (lb/d)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (lb/d)all year001
Nitrite + Nitrate total [as N]annual averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]annual averagereport only (lb/d)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (lb/d)all year001
Phosphorus, total [as P]annual averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]annual averagereport only (lb/d)all year001
Phosphorus, total [as P]daily maximumreport only (lb/d)all year001
Copper, total [as Cu]monthly averagereport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]monthly averagereport only (lb/d)all year001
Copper, total [as Cu]daily maximumreport only (lb/d)all year001
Lead, total [as Pb]monthly averagereport only (ug/L)all year001
Lead, total [as Pb]daily maximumreport only (ug/L)all year001
Lead, total [as Pb]monthly averagereport only (lb/d)all year001
Lead, total [as Pb]daily maximumreport only (lb/d)all year001
Zinc, total [as Zn]monthly averagereport only (ug/L)all year001
Zinc, total [as Zn]daily maximumreport only (ug/L)all year001
Zinc, total [as Zn]monthly averagereport only (lb/d)all year001
Zinc, total [as Zn]daily maximumreport only (lb/d)all year001
Ultraviolet light intensityinstantaneous minimumreport only (uW/cm2)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .44 mg/Lall year001
Chlorine, total residualinstantaneous maximum≤ 1.04 mg/Lall year001
E. coliinstantaneous maximumreport only (#/100mL)all year001
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep001
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 50 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10.4 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (lb/d)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year101
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year101
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101
Solids, total suspendeddaily maximumreport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (lb/d)all year101
Solids, total suspendeddaily maximumreport only (lb/d)all year101

New limits from Jan 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Copper, total [as Cu], monthly average28 ug/Lnew38.7 ug/L (9 values)1.38×
Copper, total [as Cu], daily maximum43.6 ug/Lnew38.7 ug/L (9 values)0.888×
Copper, total [as Cu], daily maximum0.018 lb/dnew0.0058 lb/d (9 values)0.322×
Copper, total [as Cu], monthly average0.012 lb/dnew0.0058 lb/d (9 values)0.483×

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0063100 · MCP: https://passage-data.com/mcp