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New England Aquarium Off-Site Holding Fac.

Botanical And Zoological Gardens, Quincy, Massachusetts. NPDES permit MA0040380, in force until Jan 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (12 values), form Q quarterly (2 values), form T yearly, form TA yearly
Renewal application due
Aug 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 18 reports late

Limits in force (31)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Flow ratemonthly average≤ 12000 gal/dall year
Flow ratedaily maximum≤ 30000 gal/dall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
pHdaily maximumreport only (SU)all year
Salinitydaily maximumreport only (ppt)all year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year
Copper, total [as Cu]monthly averagereport only (ug/L)all year
Copper, total [as Cu]daily maximumreport only (ug/L)all year
Copper, total [as Cu]daily maximumreport only (mg/L)all year
Copper, total [as Cu]daily maximumreport only (mg/L)all year
Lead, total [as Pb]daily maximumreport only (mg/L)all year
Lead, total [as Pb]daily maximumreport only (mg/L)all year
Nickel, total [as Ni]daily maximumreport only (mg/L)all year
Nickel, total [as Ni]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Enterococcimonthly geometric mean≤ 35 CFU/100mLall year
Enterococcidaily maximum≤ 130 CFU/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 88 MPN/100mLall year
Coliform, fecal generaldaily maximum≤ 260 MPN/100mLall year
LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)monthly average minimum≥ 100 %all year
LC50 Static 48Hr Acute Menidiamonthly average minimum≥ 100 %all year

How strict are these limits?

Cited limits by parameter: Massachusetts's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MA0040380 · MCP: https://passage-data.com/mcp