Clean Water Act discharge permit · NPDES MO0030791

NORBORNE WWTF, Norborne, MO: NPDES MO0030791 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
4Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

NORBORNE WWTF, held by City of Norborne, holds NPDES permit MO0030791, which discharges to Moss Cr.. EPA’s file records it issued January 15, 2014 and expiring January 31, 2019.

NORBORNE WWTF, Norborne, Missouri: Individual permit MO0030791, held by City of Norborne; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued January 15, 2014, term to January 31, 2019; discharges to Moss Cr..

BOD, 5-day, 20 deg. C: 3 limits, 63 violations of any kind, 6 effluent exceedances, latest January 31, 2019, largest 351% over the limit.
Solids, total suspended: 3 limits, 60 violations of any kind, 3 effluent exceedances, latest March 31, 2017, largest 173% over the limit.
Coliform, fecal general: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest May 31, 2013, largest 403% over the limit.
Solids, suspended percent removal: 0 limits, 15 violations of any kind, 1 effluent exceedance, latest March 31, 2026, largest 83% over the limit.
Nitrogen, ammonia total [as N]: 2 limits, 68 violations of any kind, 0 effluent exceedances.
Nitrogen, Kjeldahl, total [as N]: 0 limits, 58 violations of any kind, 0 effluent exceedances.
Nitrite + Nitrate total [as N]: 0 limits, 58 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 0 limits, 58 violations of any kind, 0 effluent exceedances.
pH: 1 limit, 48 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 2 limits, 42 violations of any kind, 0 effluent exceedances.
Oil and grease [soxhlet extr.] tot.: 2 limits, 38 violations of any kind, 0 effluent exceedances.
E. coli: 2 limits, 32 violations of any kind, 0 effluent exceedances.
BOD, 5-day, percent removal: 0 limits, 14 violations of any kind, 0 effluent exceedances.
E. coli, colony forming units [CFU]: 2 limits, 6 violations of any kind, 0 effluent exceedances.
Toxicity [acute], Ceriodaphnia dubia: 1 limit, 1 violation of any kind, 0 effluent exceedances.
Toxicity [acute], Pimephales promelas [Fathead Minnow]: 1 limit, 1 violation of any kind, 0 effluent exceedances.

August 2, 2024: Reporting Violations - Improper/ Incorrect Reporting (ST6).
June 28, 2024: Permit Violations - Unapproved Operation (ST6).
June 28, 2024: Reporting Violations - Improper/ Incorrect Reporting (ST6).
June 28, 2024: Permit Violations - Violation Specified in Comment (ST6).
June 28, 2024: Permit Violations - Failure to Submit Timely Permit Renewal Application (ST6).
June 28, 2024: Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) (ST6).
June 21, 2024: Reporting Violations - Failure to Submit DMRs (ST6).
June 13, 2023: Reporting Violations - Failure to Submit DMRs (ST6).
March 17, 2023: Reporting Violations - Improper/ Incorrect Reporting (ST6).
December 16, 2022: Reporting Violations - Failure to Submit DMRs (ST6).
September 16, 2022: Reporting Violations - Improper/ Incorrect Reporting (ST6).
June 16, 2022: Reporting Violations - Improper/ Incorrect Reporting (ST6).
March 21, 2022: Reporting Violations - Failure to Submit DMRs (ST6).
December 16, 2021: Reporting Violations - Failure to Submit DMRs (ST6).
September 22, 2021: Reporting Violations - Failure to Submit DMRs (ST6).
March 31, 2021: Reporting Violations - Improper/ Incorrect Reporting (ST6).
February 22, 2019: Permit Violations - Failure to Submit Timely Permit Renewal Application (ST6).
February 22, 2019: Reporting Violations - Failure to Submit DMRs (ST6).
February 22, 2019: Permit Violations - Violation Specified in Comment (ST6).

Missouri holds 756 Publicly owned treatment works coverages of this permit type in EPA’s file; 20 were issued before MO0030791. City of Norborne holds 2 permits in Missouri.

Other permits held by City of Norborne

NORBORNE WATER TREATMENT PLANT, Norborne: MOG640096, issued April 1, 2024

Coverages issued nearest MO0030791

December 19, 2013: SHELBINA WWTP, Shelbina, MO0041092, held by City of Shelbina
December 19, 2013: FREEBURG WWTF, Freeburg, MO0058220, held by City of Freeburg
January 6, 2014: POTOSI WWTP NO. 1, Potosi, MO0099431, held by City of Potosi
January 8, 2014: URBANA WWTF, Urbana, MO0095176, held by City of Urbana
January 13, 2014: TCRSD BIG BEAR RESORT #2 WWTP, Hollister, MO0113247, held by Taney County Regional Sewer District
January 16, 2014: SCCPWSD 2 HICKORY TRAILS WWTP, Wright City, MO0136204, held by St. Charles Co PWSD #2
January 30, 2014: NOVELTY WWTF, Novelty, MO0102032, held by Village of Novelty
February 18, 2014: PENERMON WASTEWATER TREATMENT FACILITY, Essex, MO0091715, held by Village of Penermon
February 19, 2014: TRUXTON WWTF, Truxton, MO0118192, held by Village of Truxton
February 19, 2014: MOSCOW MILLS - NW AREA WWTF, Moscow Mills, MO0119709, held by Moscow Mills, City of

NORBORNE WWTF among its neighbors

EPA’s permit file holds 4 discharge permits in the Headwaters Moss Creek subwatershed (HUC 103001011102), MO0030791 among them. Its county holds 22, 1 of them major permits; MO0030791 is a minor permit.

Other permits in the Headwaters Moss Creek subwatershed (HUC 103001011102)

HARDIN WWTF, Hardin: MO0046655, minor permit, discharging to Tributary to Norborne Drainage Ditch, permit term to December 31, 2018
RAY CARROLL FERTILIZER STORAGE, Hardin: MONX00501, minor permit, permit term to September 22, 2027
RAY-CARROLL CO. GRAIN GROWERS - HARDIN, Hardin: MOR240535, minor permit, discharging to Moss Cr., permit term to February 19, 2014

Identity

Facility as filed	NORBORNE WWTF
Permittee as filed	City of Norborne
NPDES ID	MO0030791
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 15, 2014
Expiration date	January 31, 2019
Address	Norborne, MO 64668
Receiving water	Moss Cr.
Subwatershed	Headwaters Moss Creek (HUC 103001011102)
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

16Pollutants on file
10Under a numeric limit
16With 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, 5-day, 20 deg. C	3	63	6	January 31, 2019	351% over the limit
Solids, total suspended	3	60	3	March 31, 2017	173% over the limit
Coliform, fecal general	0	2	2	May 31, 2013	403% over the limit
Solids, suspended percent removal	0	15	1	March 31, 2026	83% over the limit
Nitrogen, ammonia total [as N]	2	68	0
Nitrogen, Kjeldahl, total [as N]	0	58	0
Nitrite + Nitrate total [as N]	0	58	0
Phosphorus, total [as P]	0	58	0
pH	1	48	0
Flow, in conduit or thru treatment plant	2	42	0
Oil and grease [soxhlet extr.] tot.	2	38	0
E. coli	2	32	0
BOD, 5-day, percent removal	0	14	0
E. coli, colony forming units [CFU]	2	6	0
Toxicity [acute], Ceriodaphnia dubia	1	1	0
Toxicity [acute], Pimephales promelas [Fathead Minnow]	1	1	0

Inspections, violations and enforcement

19Single-event violations

Date	What EPA recorded	Agency
August 2, 2024	Reporting Violations - Improper/ Incorrect Reporting	ST6
June 28, 2024	Permit Violations - Unapproved Operation	ST6
June 28, 2024	Reporting Violations - Improper/ Incorrect Reporting	ST6
June 28, 2024	Permit Violations - Violation Specified in Comment	ST6
June 28, 2024	Permit Violations - Failure to Submit Timely Permit Renewal Application	ST6
June 28, 2024	Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)	ST6
June 21, 2024	Reporting Violations - Failure to Submit DMRs	ST6
June 13, 2023	Reporting Violations - Failure to Submit DMRs	ST6
March 17, 2023	Reporting Violations - Improper/ Incorrect Reporting	ST6
December 16, 2022	Reporting Violations - Failure to Submit DMRs	ST6
September 16, 2022	Reporting Violations - Improper/ Incorrect Reporting	ST6
June 16, 2022	Reporting Violations - Improper/ Incorrect Reporting	ST6
March 21, 2022	Reporting Violations - Failure to Submit DMRs	ST6
December 16, 2021	Reporting Violations - Failure to Submit DMRs	ST6
September 22, 2021	Reporting Violations - Failure to Submit DMRs	ST6
March 31, 2021	Reporting Violations - Improper/ Incorrect Reporting	ST6
February 22, 2019	Permit Violations - Failure to Submit Timely Permit Renewal Application	ST6
February 22, 2019	Reporting Violations - Failure to Submit DMRs	ST6
February 22, 2019	Permit Violations - Violation Specified in Comment	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES MO0030791.

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 MO0030791.

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

This public-records page covers NPDES permit MO0030791 for the NORBORNE WWTF in Norborne, MO, held by City of Norborne and discharging to Moss Cr., with the permit status shown as administratively continued. The page lists 16 pollutants on file, 10 of which are under a numeric limit, and 1 of which is shown with an effluent exceedance in the figures given.