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

Rockport South WWTP

Sewage treatment plant, Rockport, Indiana. NPDES permit IN0021067, in force until Apr 30, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (18 values), outfall 002 form C monthly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 1 required value missing, 1 of 24 reports late

Limits in force (27)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 125 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 188 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 10.2 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 4.7 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 15.3 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 13 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 43 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 20 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 64 lb/dJan, Feb, Mar, Apr, Dec001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct001
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct001
Coliform, fecal generalmonthly geometric mean≤ 2000 #/100mLJan, Feb, Mar, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 104.3 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 166.9 lb/dall year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Durationmonthly totalreport only (hr/mo)all year002
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year002
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year002
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year002

How strict are these limits?

Cited limits by parameter: Indiana'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/IN0021067 · MCP: https://passage-data.com/mcp