Local Limits and Fee Schedule

Industrial Permit Fee Schedule 

Local Limits (For a printable copy, click here)

Sewer Use Ordinance No. 36, Section 2:  No person shall discharge wastes into the sanitary sewer which exceed the following limitations on wastewater strength: 

Pollutant

Limit for any 1 Sample

EPA
Test Method+

Arsenic

0.35  mg/l

200.7

Cadmium

0.2   mg/l

200.7

Chromium (T)

2.0   mg/L

200.7

Copper

2.0   mg/l

200.7

Lead

1.0   mg/l

200.7

Mercury

0.01  mg/l

200.7

Nickel

1.0   mg/l

200.7

Silver

0.5   mg/l

200.7

Zinc

3.0   mg/l

200.7

Cyanide

0.65  mg/l

335.4

Formaldehyde

50.0  mg/l

6252.B·/8315

Oil and Grease (Animal &Vegetable)

300   mg/l

1664 A

Oil and Grease (Mineral)

100   mg/l

1664 A

pH

Between 6.0 and 12.0

150.2

Phenols

5.0 mg/l

604/625/420.1

Temperature

No higher than 150°F

2550B·

Total Toxic Organics1

2.13   mg/l

624/625

Ammonia2 Avg. Flow <10,000 gpd 225 mg/L as N 350.1 - 350.3
Avg. Flow 10,000 – 25,000 gpd 150 mg/L as N
Avg. Flow >25,000 gpd 75 mg/L as N

·     Standard Methods Number

+ Test methods listed are examples.  Analyses must be performed using Approved Methods listed in Code of Federal Regulations 40 (CFR) 136.

1 Total Toxic Organics (TTO’s) is the summation of all quantifiable values greater than 0.01 milligrams per liter for the organic pollutants listed below.
2 The Ammonia limit above is based on the discharger’s average daily flow rate as calculated annually to establish sewer service charges. Ammonia compliance determination shall be based on the average of all valid and representative analyses occurring within a 6-month period.

Prohibited Wastes Include:

  1. Flammable or explosive substances
  2. Highly toxic and poisonous substances
  3. Substances which may obstruct flow
  4. Strongly odorous wastes
  5. Uncontaminated water (such as one-pass cooling water, storm water runoff, etc.)
  6. Sludges
  7. Wastes with temperatures over 150o F
  8. Most radioactive wastes (in excess of State Guidelines)
  9. Wastes which contain or result in the production of toxic, corrosive, explosive, or malodorous gases
  10. Organic solvents (including halogenated solvents) in excess of TTO limits.  

For a complete list of prohibited wastes, see District Ordinance No. 36.

Total Toxic Organics (TTO’s) is the summation of all quantifiable values greater than 0.01 milligrams per liter for the following organic pollutants:

Volatile Organics (624)

  • Acrolein
  • Acrylonitrile
  • Benzene
  • Bromoform (Tribromomethane)
  • Carbon Tetrachloride (Tetrachloromethane) 
  • Chlorobenzene
  • Chloroethane
  • 2-Chloroethy vinyl ether (mixed)
  • Chloroform (Trichloromethane)
  • Chlorodibromomethane
  • Dichlorobromomethane
  • 1,1-Dichloroethane
  • 1,2-Dichloroethane
  • 1,1-Dichloroethylene
  • 1,2-Dichloropropane
  • 1,3-Dichloropropylene (1,3-Dichloropropene)
  • Ethylbenzene
  • Methyl bromide (Bromomethane)
  • Methyl chloride (Chloromethane)
  • Methylene chloride (Dichloromethane)
  • Tetrachloroethylene (PCE)
  • 1,1,2,2-Tetrachloroethane
  • 1,1,1-Trichloroethane (TCA)
  • 1,1,2-Trichloroethane
  • Toluene
  • 1,2-Trans-dichloroethylene
  • Trichloroethylene (TCE)
  • Vinyl chloride (Chloroethylene)

Semi Volatile Organics (625)

  • Acenaphthene
  • Acenaphthylene
  • Anthracene
  • Benzidine
  • 1,2-Benzanthracene (Benzo(a)anthracene)
  • Benzo(a)pyrene (3,4-Benzopyrene)
  • 1,12-Benzoperylene (Benzo(ghi)perylene)
  • 11,12-Benzofluorantene
    (Benzo(k)fluoranthene)
  • 3,4-Benzofluoranthene
    (Benzo(b)fluoranthene)
  • Bis (2-chloroisopropyl) ether
  • Bis (2-chloroethoxy) methane
  • Bis (2-chloroethyl) ether
  • Bis (2-ethylhexyl) phthalate
  • 4-Bromophenyl phenyl ether
  • Butyl benzyl phthalate
  • 2-Chloronaphthalene
  • 4-Chlorophenyl phenyl ether
  • Chrysene
  • 1,2,5,6-Dibenzanthracene 
  • (Dibenzo(a,h)anthracene) 
  • 1,2-Dichlorobenzene
  • 1,3-Dichlorobenzene
  • 1,4-Dichlorobenzene
  • 3,3-Dichlorobenzidine
  • Diethylphthalate
  • Dimethyl phthalate
  • Di-n-butyl phthalate
  • Di-n-octyl phathalate
  • 2,4-Dinitrotoluene
  • 2,6-Dinitrotoluene
  • 1,2-Diphenylhydrazine
  • Fluoranthene
  • Fluorene
  • Hexachlorobenzene
  • Hexachlorobutadiene
  • Hexachlorocyclopentadiene
  • Hexachloroethane
  • Indeno(1,2,3-cd) pyrene 
  • (2,3-o-phenlene pyrene)
  • Isophorone
  • N-nitrosodi-n-propylamine
  • N-nitrosodimethylamine
  • N-nitrosodiphenylamine
  • Naphthalene
  • Nitrobenzene
  • Phenanthrene
  • Pyrene
  • 1,2,4-Trichlorobenzene

Locally Regulated Phenols (625)

  • 2-Chlorophenol
  • Parachlorometa cresol (4-Chloro-3-methylphenol)
  • 2,4-Dichlorophenol
  • 2,4-Dimethylphenol
  • 2-methyl-4,6-dinitrophenol
  • 2-Methylphenol
  • 4-Methylphenol
  • 2-Nitrophenol
  • 4-Nitrophenol
  • Pentachlorophenol
  • Phenol
  • 2,4,6-Trichlorophenol

For additional information on Industrial Discharge Requirements, see Ordinance 36.            

Click link to view all USD Sewer Use Ordinances.

 

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