Clean Water Act discharge permit · NPDES OH0115711

ARROWHEAD WWTP, Sidney, OH: NPDES OH0115711 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
15Pollutants under a numeric limit
5Pollutants with an effluent exceedance

ARROWHEAD WWTP, held by Shelby Co SD, holds NPDES permit OH0115711, which discharges to Mill Creek. EPA’s file records it issued November 10, 2020 and expiring November 30, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	ARROWHEAD WWTP
Permittee as filed	Shelby Co SD
NPDES ID	OH0115711
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	November 10, 2020
Expiration date	November 30, 2025
Address	Sidney, OH 45365
Receiving water	Mill Creek
Subwatershed	Mill Creek-Loramie Creek (HUC 050800010604)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

16Pollutants on file
15Under a numeric limit
5With 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
Solids, total suspended	4	24	24	December 31, 2020	592% over the limit
Nitrogen, ammonia total [as N]	4	26	22	December 31, 2016	322% over the limit
E. coli, MTEC-MF	2	8	8	May 31, 2021	288% over the limit
Chlorine, total residual	0	2	2	July 31, 2006	847% over the limit
BOD, carbonaceous [5 day, 20 C]	4	1	1	May 31, 2011	17% over the limit
Temperature, water deg. centigrade	2	0	0
pH	2	0	0
Nitrogen, Kjeldahl, total [as N]	2	0	0
Nitrite + Nitrate total [as N]	2	0	0
Phosphorus, total [as P]	2	0	0
Turbidity [severity]	2	0	0
Flow, in conduit or thru treatment plant	2	0	0
Solids, total dissolved- 180 deg. C	2	0	0
Overflows	2	0	0
Sludge waste from secondary clarifiers	2	0	0
Oxygen, dissolved [DO]	1	0	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES OH0115711.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID OH0115711 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.