AQUATIC RESEARCH ORGANISMS INC — NPDES permit NH0022985: limits, due date and EPA's record

NPDES permit NH0022985 · Minor NON-POTW · expired, expires 2026-05-31 · EPA's file as of 2026-09-19

This permit expired on 2026-05-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-07-31. Most often over: Enterococci (1), Solids, total suspended (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (34)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. centigrade	DAILY MX	report only	Jul, Aug, Sep
002	pH	MINIMUM	>= 6.5 SU	all year
002	pH	MAXIMUM	<= 8 SU	all year
002	pH	DAILY MX	report only	Jul, Aug, Sep
002	Salinity	DAILY MX	report only	Jul, Aug, Sep
002	Solids, total suspended	MO AVG	report only	all year
002	Solids, total suspended	DAILY MX	<= 50 mg/L	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	Jul, Aug, Sep
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	Jul, Aug, Sep
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Nickel, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Nickel, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Zinc, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Zinc, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Cadmium, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Cadmium, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Lead, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Lead, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Copper, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Copper, total recoverable	DAILY MX	report only	Jul, Aug, Sep
002	Coliform, fecal - % samples exceeding limit	DAILY MX	<= 10 %	all year
002	Flow, in conduit or thru treatment plant	MO AVG	<= 7000 gal/d	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	<= 12000 gal/d	all year
002	Chlorine, total residual	MO AVG	<= .75 mg/L	all year
002	Chlorine, total residual	DAILY MX	<= 1 mg/L	all year
002	Enterococci	MO GEO	<= 35 #/100mL	all year
002	Enterococci	DAILY MX	<= 104 #/100mL	all year
002	Formaldehyde	DAILY MX	report only	all year
002	Coliform, fecal general	MO GEO	<= 14 #/100mL	all year
002	Coliform, fecal general	DAILY MX	report only	all year
002	LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	MO AV MN	>= 100 %	Jul, Aug, Sep
002	LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	DAILY MX	report only	Jul, Aug, Sep
002	LC50 Static 48Hr Acute Menidia	MO AV MN	>= 100 %	Jul, Aug, Sep