Clean Water Act discharge permit · NPDES IN0032328

PERU UTILITIES WWTP, Peru, IN: NPDES IN0032328 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
26Pollutants under a numeric limit
9Pollutants with an effluent exceedance
2Inspections on file
0Formal enforcement actions

PERU UTILITIES WWTP holds NPDES permit IN0032328, which discharges to Wabash River. EPA’s file records it issued October 8, 2020 and expiring November 30, 2025.

PERU UTILITIES WWTP, Peru, Indiana: Individual permit IN0032328; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued October 8, 2020, term to November 30, 2025, by IDEM; discharges to WABASH RIVER; Sewage Treatment Facilities.

E. coli, colony forming units [CFU]: 3 limits, 33 violations of any kind, 33 effluent exceedances, latest April 30, 2026, largest 26,794% over the limit.
Phosphorus, total [as P]: 2 limits, 17 violations of any kind, 17 effluent exceedances, latest April 30, 2026, largest 180% over the limit.
Solids, suspended percent removal: 0 limits, 16 violations of any kind, 15 effluent exceedances, latest April 30, 2013, largest 187% over the limit.
Solids, total suspended: 4 limits, 14 violations of any kind, 10 effluent exceedances, latest April 30, 2026, largest 144% over the limit.
BOD, carb-5 day, 20 deg C, percent removal: 0 limits, 6 violations of any kind, 5 effluent exceedances, latest July 31, 2015, largest 53% over the limit.
Nitrogen, ammonia total [as N]: 4 limits, 2 violations of any kind, 2 effluent exceedances, latest November 30, 2008, largest 9% over the limit.
E. coli, MTEC-MF: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2001, largest 99,999% over the limit.
Chlorine, total residual: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest July 31, 2003, largest 233% over the limit.
Selenium, dry weight: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2009, largest 68% over the limit.
BOD, carbonaceous [5 day, 20 C]: 4 limits, 4 violations of any kind, 0 effluent exceedances.
Flow, total: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Duration: 10 limits, 2 violations of any kind, 0 effluent exceedances.
Overflow volume [SS0 volume, CSO volume]: 10 limits, 2 violations of any kind, 0 effluent exceedances.
Precipitation, monthly accumulation: 10 limits, 2 violations of any kind, 0 effluent exceedances.
Discharge event observation [Visual Monitoring]: 10 limits, 2 violations of any kind, 0 effluent exceedances.
pH: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 1 limit, 2 violations of any kind, 0 effluent exceedances.
Cadmium, total [as Cd]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Copper, total [as Cu]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Lead, total [as Pb]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Nickel, total [as Ni]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Zinc, total [as Zn]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Oxygen, dissolved [DO]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
Nitrogen, total [as N]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Copper, dry weight: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Cadmium, dry weight: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Number of Events: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toxicity [acute], Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toxicity [chronic], Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toxicity [acute], Pimephales promelas [Fathead Minnow]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toxicity [chronic], Pimephales promelas [Fathead Minnow]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Molybdenum, sludge, total, dry weight [as Mo]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Zinc, sludge, total, dry weight [as Zn]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Lead, sludge, total, dry weight [as Pb]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Nickel, sludge, total, dry weight [as Ni]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Mercury, sludge, total, dry weight [as Hg]: 2 limits, 0 violations of any kind, 0 effluent exceedances.

February 11, 2026: Evaluation (S).
February 11, 2026: Evaluation (S).

Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 466 were issued before IN0032328. PERU UTILITIES WWTP holds 2 permits in Indiana.

Other permits held by PERU UTILITIES WWTP

PERU UTILITIES WWTP, Peru: INL032328, issued January 1, 2021

Coverages issued nearest IN0032328

September 24, 2020: PLAINFIELD SOUTH WWTP, TOWN OF, Plainfield, IN0062456
October 1, 2020: BLOOMFIELD MUNICIPAL WWTP, Bloomfield, IN0022373
October 1, 2020: SWITZ CITY MUNICIPAL WWTP, Switz City, IN0042650, held by SWITZ CITY WWTP, TOWN OF
October 1, 2020: PICNIC WOODS DEVELOPMENT, Lawrenceburg, IN0053759
October 8, 2020: ROCKPORT SOUTH WWTP, Rockport, IN0021067
October 15, 2020: SCOTTSBURG WWTP, Scottsburg, IN0020397
October 15, 2020: ROCKVILLE WWTP, Rockville, IN0024449, held by ROCKVILLE MUNICIPAL WWTP
October 15, 2020: CAYUGA MUNICIPAL WWTP, Cayuga, IN0060461
October 22, 2020: NEW MARKET WWTP, New Market, IN0021041
October 29, 2020: TERRE HAUTE WWTP, CITY OF, Terre Haute, IN0025607

PERU UTILITIES WWTP among its neighbors

EPA’s permit file holds 30 discharge permits in the Prairie Ditch-Wabash River subwatershed (HUC 051201011602), IN0032328 among them. Its county holds 38, 3 of them major permits; IN0032328 is a major permit.

Other permits in the Prairie Ditch-Wabash River subwatershed (HUC 051201011602)

ARMOUR ECKRICH MEATS LLC, Peru: INRM00373, minor permit, permit term to October 1, 2021
B & M PARTNERSHIP RETAIL SPACE, Peru: INRA06998, minor permit, permit term to February 2, 2026
BROADWAY LANDING ROADWAY EXTENSION, Peru: INRA14024, minor permit, permit term to June 6, 2029
BRYAN STEAM LLC, Peru: INRM01065, minor permit, discharging to Prairie Ditch, permit term to February 8, 2025
C-STORE PERU, Peru: INRA14679, minor permit, permit term to September 18, 2029
DICKEY'S EXPRESS CAR WASH - PERU, Peru: INRA16351, minor permit, permit term to July 28, 2030
ELMWOOD PRIMARY LEARNING CENTER RENOVATIONS, Peru: INRA18298, minor permit, permit term to June 7, 2031
FACILITY CONCEPTS INC., Peru: INP000143, minor permit, discharging to PERU STP (WABASH RIVER), permit term to September 30, 2016
GENERAL TIRE & RUBBER CO, Peru: IN0003743, not classed
IRVING MATERIAL INC, Peru: INRM00345, minor permit, permit term to March 14, 2026

Identity

Facility as filed	PERU UTILITIES WWTP
Permittee as filed	PERU UTILITIES WWTP
NPDES ID	IN0032328
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	October 8, 2020
Expiration date	November 30, 2025
Issuing agency	IDEM
Address	Peru, IN 46970
Receiving water	WABASH RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Prairie Ditch-Wabash River (HUC 051201011602)
Program components on file	Biosolids, CSO, POTW, Pretreatment
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

36Pollutants on file
26Under a numeric limit
23With a violation of any kind
9With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
E. coli, colony forming units [CFU]	3	33	33	April 30, 2026	26,794% over the limit
Phosphorus, total [as P]	2	17	17	April 30, 2026	180% over the limit
Solids, suspended percent removal	0	16	15	April 30, 2013	187% over the limit
Solids, total suspended	4	14	10	April 30, 2026	144% over the limit
BOD, carb-5 day, 20 deg C, percent removal	0	6	5	July 31, 2015	53% over the limit
Nitrogen, ammonia total [as N]	4	2	2	November 30, 2008	9% over the limit
E. coli, MTEC-MF	0	2	2	June 30, 2001	99,999% over the limit
Chlorine, total residual	0	2	2	July 31, 2003	233% over the limit
Selenium, dry weight	0	1	1	December 31, 2009	68% over the limit
BOD, carbonaceous [5 day, 20 C]	4	4	0
Flow, total	1	3	0
Duration	10	2	0
Overflow volume [SS0 volume, CSO volume]	10	2	0
Precipitation, monthly accumulation	10	2	0
Discharge event observation [Visual Monitoring]	10	2	0
pH	2	2	0
Flow, in conduit or thru treatment plant	1	2	0
Cadmium, total [as Cd]	0	2	0
Copper, total [as Cu]	0	2	0
Lead, total [as Pb]	0	2	0
Nickel, total [as Ni]	0	2	0
Zinc, total [as Zn]	0	2	0
Oxygen, dissolved [DO]	2	1	0
Nitrogen, total [as N]	2	0	0
Copper, dry weight	2	0	0
Cadmium, dry weight	2	0	0
Number of Events	2	0	0
Toxicity [acute], Ceriodaphnia dubia	2	0	0
Toxicity [chronic], Ceriodaphnia dubia	2	0	0
Toxicity [acute], Pimephales promelas [Fathead Minnow]	2	0	0
Toxicity [chronic], Pimephales promelas [Fathead Minnow]	2	0	0
Molybdenum, sludge, total, dry weight [as Mo]	2	0	0
Zinc, sludge, total, dry weight [as Zn]	2	0	0
Lead, sludge, total, dry weight [as Pb]	2	0	0
Nickel, sludge, total, dry weight [as Ni]	2	0	0
Mercury, sludge, total, dry weight [as Hg]	2	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0032328.

Inspections

Date	What EPA recorded	Agency
February 11, 2026	Evaluation	S
February 11, 2026	Evaluation	S

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IN0032328.

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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers the NPDES discharge permit IN0032328 held by PERU UTILITIES WWTP in Peru, IN, which discharges to the WABASH RIVER and is listed under HUC 051201011602, the Prairie Ditch-Wabash River subwatershed. The permit is classed as a Major Discharger, is administratively continued, and lists 9 pollutants with an effluent exceedance out of 26 pollutants under a numeric limit.