Clean Water Act discharge permit · NPDES IA0047783

MELCHER-DALLAS CITY OF STP, Melcher-Dallas, IA: NPDES IA0047783 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MajorDischarger class
11Pollutants under a numeric limit
5Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

MELCHER-DALLAS CITY OF STP, held by CITY OF MELCHER-DALLAS, holds NPDES permit IA0047783. EPA’s file records it issued November 1, 2017 and expiring October 31, 2022.

MELCHER-DALLAS CITY OF STP, Melcher-Dallas, Iowa: Individual permit IA0047783, held by CITY OF MELCHER-DALLAS; Publicly owned treatment works; Effective; issued November 1, 2017, term to October 31, 2022, by STA; Sewage Treatment Facilities.

pH: 7 limits, 123 violations of any kind, 113 effluent exceedances, latest September 30, 2022.
BOD, carbonaceous [5 day, 20 C]: 8 limits, 68 violations of any kind, 47 effluent exceedances, latest August 31, 2022, largest 84% over the limit.
Solids, total suspended: 13 limits, 30 violations of any kind, 6 effluent exceedances, latest September 30, 2022, largest 47% over the limit.
Nitrogen, ammonia total [as N]: 144 limits, 38 violations of any kind, 2 effluent exceedances, latest August 31, 2022, largest 45% over the limit.
E. coli: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest July 31, 2026, largest 4,449% over the limit.
Oxygen, dissolved [DO]: 2 limits, 6 violations of any kind, 0 effluent exceedances.
Toxicity [acute], Ceriodaphnia dubia: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Toxicity [acute], Pimephales promelas [Fathead Minnow]: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Nitrogen, total [as N]: 10 limits, 0 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 10 limits, 0 violations of any kind, 0 effluent exceedances.
BOD, 5-day, 20 deg. C: 5 limits, 0 violations of any kind, 0 effluent exceedances.
Chlorine, total residual: 4 limits, 0 violations of any kind, 0 effluent exceedances.

Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 285 were issued before IA0047783. CITY OF MELCHER-DALLAS holds 2 permits in Iowa.

Other permits held by CITY OF MELCHER-DALLAS

CITY OF MELCHER-DALLAS, Dallas: IAL047783, issued January 1, 2021

Coverages issued nearest IA0047783

October 1, 2017: NEW LIBERTY, CITY OF-STP, New Liberty, IA0075221, held by CITY OF NEW LIBERTY
October 1, 2017: EAST PERU CITY OF STP (WARREN WATER DISTRICT), East Peru, IA0079791, held by WARREN WATER DISTRICT
November 1, 2017: GRAETTINGER CITY OF STP, Graettinger, IA0027821, held by CITY OF GRAETTINGER
November 1, 2017: GREELEY CITY OF STP, Greeley, IA0040291, held by CITY OF GREELEY
November 1, 2017: HAZLETON CITY OF STP, Hazleton, IA0044024, held by CITY OF HAZLETON
November 1, 2017: ONSLOW CITY OF STP, Onslow, IA0057134, held by CITY OF ONSLOW
November 1, 2017: PATON CITY OF STP, Paton, IA0060321, held by CITY OF PATON
November 1, 2017: GRAND RIVER CITY OF STP, Grand River, IA0066346, held by CITY OF GRAND RIVER
November 1, 2017: PALMER, CITY OF STP, Palmer, IA0079308, held by CITY OF PALMER
November 1, 2017: PROMISE CITY, CITY OF STP, Promise City, IA0082007, held by CITY OF PROMISE CITY

MELCHER-DALLAS CITY OF STP among its neighbors

EPA’s permit file holds 1 discharge permits in the English Creek subwatershed (HUC 071000090102), IA0047783 among them. Its county holds 11, 3 of them major permits; IA0047783 is a major permit.

Identity

Facility as filed	MELCHER-DALLAS CITY OF STP
Permittee as filed	CITY OF MELCHER-DALLAS
NPDES ID	IA0047783
Permit status	Effective
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	November 1, 2017
Expiration date	October 31, 2022
Issuing agency	STA
Address	Melcher-Dallas, IA 50062
Subwatershed	English Creek (HUC 071000090102)
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

12Pollutants on file
11Under a numeric limit
8With a violation of any kind
5With 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
pH	7	123	113	September 30, 2022
BOD, carbonaceous [5 day, 20 C]	8	68	47	August 31, 2022	84% over the limit
Solids, total suspended	13	30	6	September 30, 2022	47% over the limit
Nitrogen, ammonia total [as N]	144	38	2	August 31, 2022	45% over the limit
E. coli	0	2	2	July 31, 2026	4,449% over the limit
Oxygen, dissolved [DO]	2	6	0
Toxicity [acute], Ceriodaphnia dubia	1	3	0
Toxicity [acute], Pimephales promelas [Fathead Minnow]	1	3	0
Nitrogen, total [as N]	10	0	0
Phosphorus, total [as P]	10	0	0
BOD, 5-day, 20 deg. C	5	0	0
Chlorine, total residual	4	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0047783.

Inspections

EPA’s inspection file holds no inspection for NPDES IA0047783.

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 IA0047783.

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

This public-records page covers NPDES permit IA0047783 for MELCHER-DALLAS CITY OF STP in Melcher-Dallas, IA, held by CITY OF MELCHER-DALLAS, with its status shown as Effective and its discharger class as Major Discharger. The page lists 12 pollutants on file, 11 under a numeric limit, 8 with a violation of any kind, and 5 with an effluent exceedance, with the permit recorded as issued November 1, 2017 and expiring October 31, 2022, as of October 14, 2026.