Harvard, City of — NPDES permit IL0020117: limits, due date and EPA's record

Sewage treatment plant, major discharger, Harvard, Illinois. NPDES permit IL0020117, in force until Dec 31, 2026. Last 12 months: no values over a limit, 4 of 35 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (174)

Parameter	Statistic	Limit	Months	Outfall
Oxygen, dissolved [DO]	monthly average minimum	≥ 5.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec	001
Oxygen, dissolved [DO]	monthly average minimum	≥ 5.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec	001
Oxygen, dissolved [DO]	minimum weekly average	≥ 4 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec	001
Oxygen, dissolved [DO]	minimum weekly average	≥ 4 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec	001
Oxygen, dissolved [DO]	minimum weekly average	≥ 6 mg/L	Mar–Jul	001
Oxygen, dissolved [DO]	minimum weekly average	≥ 6 mg/L	Mar–Jul	001
Oxygen, dissolved [DO]	daily minimum	≥ 3.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec	001
Oxygen, dissolved [DO]	daily minimum	≥ 3.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec	001
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	Mar–Jul	001
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	Mar–Jul	001
pH	minimum	≥ 6 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	monthly average	≤ 12 mg/L	all year	001
Solids, total suspended	monthly average	≤ 12 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 24 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 24 mg/L	all year	001
Solids, total suspended	monthly average	≤ 450 lb/d	all year	001
Solids, total suspended	monthly average	≤ 450 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 901 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 901 lb/d	all year	001
Oil & Grease	daily maximum	report only (mg/L)	all year	001
Oil & Grease	daily maximum	report only (mg/L)	all year	001
Nitrogen, total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.5 mg/L	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.5 mg/L	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.1 mg/L	Jun–Aug	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.1 mg/L	Jun–Aug	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.8 mg/L	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.8 mg/L	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.7 mg/L	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.7 mg/L	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.7 mg/L	Jun–Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.7 mg/L	Jun–Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 5.2 mg/L	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 5.2 mg/L	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	monthly average	≤ 56 lb/d	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	monthly average	≤ 56 lb/d	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	monthly average	≤ 41 lb/d	Jun–Aug	001
Nitrogen, ammonia total [as N]	monthly average	≤ 41 lb/d	Jun–Aug	001
Nitrogen, ammonia total [as N]	monthly average	≤ 68 lb/d	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	monthly average	≤ 68 lb/d	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 176 lb/d	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 176 lb/d	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 176 lb/d	Jun–Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 176 lb/d	Jun–Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 195 lb/d	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 195 lb/d	Jan, Feb, Nov, Dec	001
Nitrogen, ammonia total [as N]	weekly average	≤ 2.8 mg/L	Jun–Aug	001
Nitrogen, ammonia total [as N]	weekly average	≤ 2.8 mg/L	Jun–Aug	001
Nitrogen, ammonia total [as N]	weekly average	≤ 3.8 mg/L	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	weekly average	≤ 3.8 mg/L	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	weekly average	≤ 105 lb/d	Jun–Aug	001
Nitrogen, ammonia total [as N]	weekly average	≤ 105 lb/d	Jun–Aug	001
Nitrogen, ammonia total [as N]	weekly average	≤ 143 lb/d	Mar, Apr, May, Sep, Oct	001
Nitrogen, ammonia total [as N]	weekly average	≤ 143 lb/d	Mar, Apr, May, Sep, Oct	001
Phosphorus, total [as P]	monthly average	≤ 1 mg/L	all year	001
Phosphorus, total [as P]	monthly average	≤ 1 mg/L	all year	001
Phosphorus, total [as P]	monthly average	≤ 38 lb/d	all year	001
Phosphorus, total [as P]	monthly average	≤ 38 lb/d	all year	001
Cyanide, total [as CN]	daily maximum	report only (ug/L)	all year	001
Cyanide, total [as CN]	daily maximum	report only (ug/L)	all year	001
Cyanide, free [amenable to chlorination]	daily maximum	report only (ug/L)	all year	001
Cyanide, free [amenable to chlorination]	daily maximum	report only (ug/L)	all year	001
Fluoride, total [as F]	daily maximum	report only (mg/L)	all year	001
Fluoride, total [as F]	daily maximum	report only (mg/L)	all year	001
Arsenic, total [as As]	daily maximum	report only (mg/L)	all year	001
Arsenic, total [as As]	daily maximum	report only (mg/L)	all year	001
Barium, total [as Ba]	daily maximum	report only (mg/L)	all year	001
Barium, total [as Ba]	daily maximum	report only (mg/L)	all year	001
Cadmium, total [as Cd]	daily maximum	report only (mg/L)	all year	001
Cadmium, total [as Cd]	daily maximum	report only (mg/L)	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .011 mg/L	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .011 mg/L	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .011 mg/L	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .011 mg/L	all year	001
Chromium, hexavalent [as Cr]	daily maximum	report only (mg/L)	all year	001
Chromium, hexavalent [as Cr]	daily maximum	report only (mg/L)	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .016 mg/L	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .016 mg/L	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .016 mg/L	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .016 mg/L	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .41 lb/d	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .41 lb/d	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .41 lb/d	all year	001
Chromium, hexavalent [as Cr]	monthly average	≤ .41 lb/d	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .6 lb/d	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .6 lb/d	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .6 lb/d	all year	001
Chromium, hexavalent [as Cr]	daily maximum	≤ .6 lb/d	all year	001
Chromium, total [as Cr]	daily maximum	report only (mg/L)	all year	001
Chromium, total [as Cr]	daily maximum	report only (mg/L)	all year	001
Copper, total [as Cu]	monthly average	≤ .0349 mg/L	all year	001
Copper, total [as Cu]	monthly average	≤ .0349 mg/L	all year	001
Copper, total [as Cu]	monthly average	≤ .0412 mg/L	all year	001
Copper, total [as Cu]	monthly average	≤ .0412 mg/L	all year	001
Copper, total [as Cu]	daily maximum	report only (mg/L)	all year	001
Copper, total [as Cu]	daily maximum	report only (mg/L)	all year	001
Copper, total [as Cu]	daily maximum	≤ .0585 mg/L	all year	001
Copper, total [as Cu]	daily maximum	≤ .0585 mg/L	all year	001
Copper, total [as Cu]	monthly average	≤ 1.3 lb/d	all year	001
Copper, total [as Cu]	monthly average	≤ 1.3 lb/d	all year	001
Copper, total [as Cu]	monthly average	≤ 1.6 lb/d	all year	001
Copper, total [as Cu]	monthly average	≤ 1.6 lb/d	all year	001
Copper, total [as Cu]	daily maximum	≤ 2.2 lb/d	all year	001
Copper, total [as Cu]	daily maximum	≤ 2.2 lb/d	all year	001
Iron, total [as Fe]	daily maximum	report only (mg/L)	all year	001
Iron, total [as Fe]	daily maximum	report only (mg/L)	all year	001
Iron, dissolved [as Fe]	daily maximum	report only (mg/L)	all year	001
Iron, dissolved [as Fe]	daily maximum	report only (mg/L)	all year	001
Iron, dissolved [as Fe]	daily maximum	≤ 1 mg/L	all year	001
Iron, dissolved [as Fe]	daily maximum	≤ 1 mg/L	all year	001
Iron, dissolved [as Fe]	daily maximum	≤ 38 lb/d	all year	001
Iron, dissolved [as Fe]	daily maximum	≤ 38 lb/d	all year	001
Lead, total [as Pb]	daily maximum	report only (mg/L)	all year	001
Lead, total [as Pb]	daily maximum	report only (mg/L)	all year	001
Manganese, total [as Mn]	daily maximum	report only (mg/L)	all year	001
Manganese, total [as Mn]	daily maximum	report only (mg/L)	all year	001
Nickel, total [as Ni]	monthly average	≤ .0146 mg/L	all year	001
Nickel, total [as Ni]	monthly average	≤ .0146 mg/L	all year	001
Nickel, total [as Ni]	daily maximum	report only (mg/L)	all year	001
Nickel, total [as Ni]	daily maximum	report only (mg/L)	all year	001
Nickel, total [as Ni]	monthly average	≤ .55 lb/d	all year	001
Nickel, total [as Ni]	monthly average	≤ .55 lb/d	all year	001
Silver, total [as Ag]	daily maximum	report only (mg/L)	all year	001
Silver, total [as Ag]	daily maximum	report only (mg/L)	all year	001
Silver, total [as Ag]	daily maximum	≤ .005 mg/L	all year	001
Silver, total [as Ag]	daily maximum	≤ .005 mg/L	all year	001
Silver, total [as Ag]	daily maximum	≤ .19 lb/d	all year	001
Silver, total [as Ag]	daily maximum	≤ .19 lb/d	all year	001
Zinc, total [as Zn]	daily maximum	report only (mg/L)	all year	001
Zinc, total [as Zn]	daily maximum	report only (mg/L)	all year	001
Selenium, total [as Se]	daily maximum	report only (mg/L)	all year	001
Selenium, total [as Se]	daily maximum	report only (mg/L)	all year	001
Phenolics, total recoverable	daily maximum	report only (mg/L)	all year	001
Phenolics, total recoverable	daily maximum	report only (mg/L)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlorine, total residual	daily maximum	≤ .038 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	001
Chlorine, total residual	daily maximum	≤ .038 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	001
Chlorine, total residual	daily maximum	≤ .038 mg/L	May–Oct	001
Chlorine, total residual	daily maximum	≤ .038 mg/L	May–Oct	001
Mercury, total [as Hg]	daily maximum	report only (ng/L)	all year	001
Mercury, total [as Hg]	daily maximum	report only (ng/L)	all year	001
Coliform, fecal general	daily maximum	≤ 400 #/100mL	May–Oct	001
Coliform, fecal general	daily maximum	≤ 400 #/100mL	May–Oct	001
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 10 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 10 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 20 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 20 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 375 lb/d	all year	001
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 375 lb/d	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 751 lb/d	all year	001
BOD, carbonaceous [5 day, 20 C]	daily maximum	≤ 751 lb/d	all year	001
Oxygen, dissolved [DO]	daily minimum	report only (mg/L)	all year	002
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	002
BOD, 5-day, 20 deg. C	weekly average	≤ 45 mg/L	all year	002
pH	minimum	≥ 6 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Solids, total suspended	monthly average	≤ 30 mg/L	all year	002
Solids, total suspended	weekly average	≤ 45 mg/L	all year	002
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	002
Phosphorus, total [as P]	daily maximum	report only (mg/L)	all year	002
Chlorine, total residual	monthly average	≤ .75 mg/L	all year	002
Coliform, fecal general	daily maximum	≤ 400 #/100mL	all year	002
Flow, total	monthly total	report only (Mgal/mo)	all year	002
BOD, 5-day, 20 deg. C	monthly average	report only (mg/L)	all year	INF
Solids, total suspended	monthly average	report only (mg/L)	all year	INF
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	INF
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	INF

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/IL0020117 · MCP: https://passage-data.com/mcp