Clean Water Act discharge permit · NPDES IA0072311

ROSE HILL CITY OF STP, Rose Hill, IA: NPDES IA0072311 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
7Pollutants under a numeric limit
4Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ROSE HILL CITY OF STP, held by MAHASKA RURAL WATER SYSTEMS, INC, holds NPDES permit IA0072311. EPA’s file records it issued January 1, 2017 and expiring December 31, 2021.

ROSE HILL CITY OF STP, Rose Hill, Iowa: Individual permit IA0072311, held by MAHASKA RURAL WATER SYSTEMS, INC; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued January 1, 2017, term to December 31, 2021, by STA; Sewage Treatment Facilities.

BOD, carbonaceous [5 day, 20 C]: 5 limits, 14 violations of any kind, 5 effluent exceedances, latest June 30, 2015, largest 32% over the limit.
Flow, in conduit or thru treatment plant: 0 limits, 4 violations of any kind, 4 effluent exceedances, latest August 31, 2007, largest 40% over the limit.
Nitrogen, ammonia total [as N]: 284 limits, 10 violations of any kind, 2 effluent exceedances, latest May 31, 2026, largest 61% over the limit.
Solids, total suspended: 5 limits, 10 violations of any kind, 1 effluent exceedance, latest June 30, 2015, largest 3% over the limit.
pH: 2 limits, 7 violations of any kind, 0 effluent exceedances.
Oxygen, dissolved [DO]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
E. coli: 3 limits, 0 violations of any kind, 0 effluent exceedances.
Depth of pond or reservoir in feet: 3 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; 178 were issued before IA0072311.

Coverages issued nearest IA0072311

December 1, 2016: WOOLSTOCK CITY OF STP, Woolstock, IA0061310, held by CITY OF WOOLSTOCK
December 1, 2016: LANESBORO CITY OF STP, Lanesboro, IA0062162, held by CITY OF LANESBORO
December 1, 2016: ARCHER CITY OF STP, Archer, IA0082422, held by IOWA LAKES REGIONAL WATER
January 1, 2017: BEDFORD CITY OF STP, Bedford, IA0026018, held by CITY OF BEDFORD
January 1, 2017: JANESVILLE CITY OF STP, Janesville, IA0026506, held by CITY OF JANESVILLE
February 1, 2017: CORWITH CITY OF STP, Corwith, IA0021351, held by CITY OF CORWITH
February 1, 2017: MAURICE CITY OF STP, Maurice, IA0023451, held by CITY OF MAURICE
February 1, 2017: ELGIN CITY OF STP, Elgin, IA0024414, held by CITY OF ELGIN
February 1, 2017: EXIRA CITY OF STP, Exira, IA0027987, held by CITY OF EXIRA
February 1, 2017: VINCENT CITY OF STP, Vincent, IA0032930, held by CITY OF VINCENT

ROSE HILL CITY OF STP among its neighbors

EPA’s permit file holds 2 discharge permits in the Snyder Creek-South Skunk River subwatershed (HUC 070801051204), IA0072311 among them. Its county holds 10, 1 of them major permits; IA0072311 is a minor permit.

Other permits in the Snyder Creek-South Skunk River subwatershed (HUC 070801051204)

KEOMAH VILLAGE CITY OF STP, Oskaloosa: IA0062073, minor permit, permit term to October 31, 2024

Identity

Facility as filed	ROSE HILL CITY OF STP
Permittee as filed	MAHASKA RURAL WATER SYSTEMS, INC
NPDES ID	IA0072311
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	January 1, 2017
Expiration date	December 31, 2021
Issuing agency	STA
Address	Rose Hill, IA 52586
Subwatershed	Snyder Creek-South Skunk River (HUC 070801051204)
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

8Pollutants on file
7Under a numeric limit
6With a violation of any kind
4With 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
BOD, carbonaceous [5 day, 20 C]	5	14	5	June 30, 2015	32% over the limit
Flow, in conduit or thru treatment plant	0	4	4	August 31, 2007	40% over the limit
Nitrogen, ammonia total [as N]	284	10	2	May 31, 2026	61% over the limit
Solids, total suspended	5	10	1	June 30, 2015	3% over the limit
pH	2	7	0
Oxygen, dissolved [DO]	1	1	0
E. coli	3	0	0
Depth of pond or reservoir in feet	3	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0072311.

Inspections

EPA’s inspection file holds no inspection for NPDES IA0072311.

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 IA0072311.

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

This public-records page covers NPDES permit IA0072311 for the ROSE HILL CITY OF STP in Rose Hill, IA, held by MAHASKA RURAL WATER SYSTEMS, INC, with an administratively continued status. The page lists a permit class of 7 for minor dischargers, 4 pollutants under a numeric limit, and 4 pollutants with an effluent exceedance.