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Presbyterian Senior Living Services, Inc.

Noncommercial Research Organizations, Glen Arm, Maryland. NPDES permit MD0022951, in force until Jun 30, 2028. Last 12 months: no values over a limit, 20 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (45 values), outfall 101 form A monthly (2 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 18 of 24 reports late

Limits in force (55)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitmaximum daily averagereport only (deg F)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitmaximum daily averagereport only (deg F)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitmaximum daily averagereport only (deg F)all year001
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 13 lb/dall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 19 lb/dall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmaximum monthly average≤ 13 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 19 lb/dall year001
Nitrogen, ammonia total [as N]maximum monthly average≤ .7 mg/LMay–Sep001
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.4 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.4 mg/LMay–Sep001
Nitrogen, ammonia total [as N]maximum daily average≤ 6.9 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]maximum monthly average≤ .3 lb/dMay–Sep001
Nitrogen, ammonia total [as N]maximum monthly average≤ 1 lb/dJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]maximum daily average≤ 1 lb/dMay–Sep001
Nitrogen, ammonia total [as N]maximum daily average≤ 2.9 lb/dJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum monthly average≤ 10 mg/LMay–Sep001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 15 mg/LMay–Sep001
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum monthly average≤ 9.4 lb/dMay–Sep001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 13 lb/dMay–Sep001
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (lb/d)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Sulfate, dissolved [as SO4]monthly averagereport only (mg/L)all year001
Acroleinquarterly averagereport only (mg/L)all year001
Benzidinequarterly averagereport only (mg/L)all year001
4,4'-DDTquarterly averagereport only (mg/L)all year001
Chlordane [tech mix. and metabolites]quarterly averagereport only (mg/L)all year001
Toxaphenequarterly averagereport only (mg/L)all year001
Heptachlorquarterly averagereport only (mg/L)all year001
Heptachlor epoxidequarterly averagereport only (mg/L)all year001
Hexachlorobenzenequarterly averagereport only (mg/L)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 residualmaximum≤ .1 mg/Lall year001
E. colimaximum monthly geometric mean≤ 126 MPN/100mLall year001
Solids, total dissolved [TDS]quarterly averagereport only (mg/L)all year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Solids, suspended percent removalminimum≥ 85 %all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Chloride, dissolved [as Cl]monthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101

How strict are these limits?

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

Same industry: the 9 Engineering, Accounting, Research and Management Services permits in Maryland.

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/MD0022951 · MCP: https://passage-data.com/mcp