Guidance for Conducting Reapplication Sampling for Facilities Discharging Process Wastewater
This guidance document is advisory in nature but is binding on an agency until amended by such agency. A guidance document does not include internal procedural documents that only affect the internal operations of the agency and does not impose additional requirements or penalties on regulated parties or include confidential information or rules and regulations made in accordance with the Administrative Procedure Act. If you believe that this guidance document imposes additional requirements or penalties on regulated parties, you may request a review of the document.

Form #:  21-003
Guidance Documents
Revised: 3/17/21

(Formerly Known as Process Wastewater Pollutant Scan)


Except for stormwater discharges, all manufacturing, commercial, mining and silvicultural dischargers applying for NPDES permits which discharge process wastewater shall provide the information in Section A through D to the Department once per permit term.

A. General Required Sampling and Analysis
Every applicant must report quantitative data for every outfall directly discharging process wastewater for the following pollutants:
  1. Biochemical Oxygen Demand (BOD5)
  2. Chemical Oxygen Demand
  3. Total Organic Carbon
  4. Total Suspended Solids
  5. Ammonia (as N)
  6. Temperature (both winter and summer)
  7. pH
The Director may waive the reporting requirements for individual point sources or for a particular industry category for one or more of the pollutants listed in Section A if the applicant has demonstrated that such a waiver is appropriate because information adequate to support issuance of a permit can be obtained with less stringent requirements.

B. Industry Specific Sampling and Analysis

Each applicant with processes in one or more primary industry category (see Section C) contributing to a discharge must report quantitative data for the following pollutants in each outfall containing process wastewater:
  1. The organic toxic pollutants in the fractions designated in Table I for the applicant's industrial category or categories unless the applicant qualifies as a small business under paragraph (g)(8) of 40 CFR 122.21. Table III lists the organic toxic pollutants in each fraction. The fractions result from the sample preparation required by the analytical procedure which uses gas chromatography/mass spectrometry. A determination that an applicant falls within a particular industrial category for the purposes of selecting fractions for testing is not conclusive as to the applicant's inclusion in that category for any other purposes (see Part D).
  2. The pollutants listed in Table II (the toxic metals, cyanide, and total phenols).
  3. Each applicant must indicate whether it knows or has reason to believe that any of the pollutants in Table IV (certain conventional and nonconventional pollutants) is discharged from each outfall. If an applicable effluent limitations guideline either directly limits the pollutant or, by its express terms, indirectly limits the pollutant through limitations on an indicator, the applicant must report quantitative data. For every pollutant discharged which is not so limited in an effluent limitations guideline, the applicant must either report quantitative data or briefly describe the reasons the pollutant is expected to be discharged.
  4. Each applicant must indicate whether it knows or has reason to believe that any of the pollutants listed in Table IV or Table V (the toxic pollutants and total phenols) for which quantitative data are not otherwise required under paragraph (g)(7)(v) of 40 CFR 122.21 are discharged from each outfall. For every pollutant expected to be discharged in concentrations of 10 ppb or greater the applicant must report quantitative data. For acrolein, acrylonitrile, 2,4 dinitrophenol, and 2-methyl-4, 6 dinitrophenol, where any of these four pollutants are expected to be discharged in concentrations of 100 ppb or greater the applicant must report quantitative data. For every pollutant expected to be discharged in concentrations less than 10 ppb, or in the case of acrolein, acrylonitrile, 2,4 dinitrophenol, and 2-methyl-4, 6 dinitrophenol, in concentrations less than 100 ppb, the applicant must either submit quantitative data or briefly describe the reasons the pollutant is expected to be discharged. An applicant qualifying as a small business under paragraph (g)(8) of 40 CFR 122.21 is not required to analyze for pollutants listed in Table III (the organic toxic pollutants).
  5. Each applicant must indicate whether it knows or has reason to believe that any of the pollutants in Table V (certain hazardous substances and asbestos) are discharged from each outfall. For every pollutant expected to be discharged, the applicant must briefly describe the reasons the pollutant is expected to be discharged, and report any quantitative data it has for any pollutant.
  6. Each applicant must report qualitative data, generated using a screening procedure not calibrated with analytical standards, for 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) if it:
    1. Uses or manufactures 2,4,5-trichlorophenoxy acetic acid (2,4,5,-T); 2-(2,4,5-trichlorophenoxy) propanoic acid (Silvex, 2,4,5,-TP); 2-(2,4,5-trichlorophenoxy) ethyl, 2,2-dichloropropionate (Erbon); O,O-dimethyl O-(2,4,5-trichlorophenyl) phosphorothioate (Ronnel); 2,4,5-trichlorophenol (TCP); or hexachlorophene (HCP); or
    2. Knows or has reason to believe that TCDD is or may be present in an effluent.
C. Applicable Primary Industry Categories


Adhesives and sealants
Ore mining
Aluminum forming
Organic chemicals manufacturing
Aluminum forming
Paint and ink formulation
Auto and other laundries
Pesticides
Battery manufacturing
Petroleum refining
Coal mining
Pharmaceutical preparations
Coil coating
Photographic equipment and supplies
Copper forming
Plastics processing
Electrical and electronic components
Plastic and synthetic materials manufacturing
Electroplating
Porcelain enameling
Explosives manufacturing
Printing and publishing
Foundries
Pulp and paper mills
Gum and wood chemicals
Rubber processing
Inorganic chemicals manufacturing
Soap and detergent manufacturing
Iron and steel manufacturing
Steam electric power plants
Leather tanning and finishing
Textile mills
Mechanical products manufacturing
Timber products processing
Nonferrous metals manufacturing


Table I – Testing Requirements for Organic Toxic Pollutants by Industrial Category for Existing Dischargers

Industrial category
GC/MS Fraction1
Volatile
Acid
Base/neutral
Pesticide
Adhesives and Sealants
2
2
2

Aluminum Forming
2
2
2

Auto and Other Laundries
2
2
2
2
Battery Manufacturing
2

2

Coal Mining
2
2
2
2
Coil Coating
2
2
2

Copper Forming
2
2
2

Electric and Electronic Components
2
2
2
2
Electroplating
2
2
2

Explosives Manufacturing

2
2

Foundries
2
2
2

Gum and Wood Chemicals
2
2
2
2
Inorganic Chemicals Manufacturing
2
2
2

Iron and Steel Manufacturing
2
2
2

Leather Tanning and Finishing
2
2
2
2
Mechanical Products Manufacturing
2
2
2

Nonferrous Metals Manufacturing
2
2
2
2
Ore Mining
2
2
2
2
Organic Chemicals Manufacturing
2
2
2
2
Paint and Ink Formulation
2
2
2
2
Pesticides
2
2
2
2
Petroleum Refining
2
2
2
2
Pharmaceutical Preparations
2
2
2

Photographic Equipment and Supplies
2
2
2
2
Plastic and Synthetic Materials Manufacturing
2
2
2
2
Plastic Processing
2



Porcelain Enameling
2

2
2
Printing and Publishing
2
2
2
2
Pulp and Paper Mills
2
2
2
2
Rubber Processing
2
2
2

Soap and Detergent Manufacturing
2
2
2

Steam Electric Power Plants
2
2
2

Textile Mills
2
2
2
2
Timber Products Processing
2
2
2
2

1The toxic pollutants in each fraction are listed in Table II.
2Testing required.

Table II – Other Toxic Pollutants (Metals, Cyanide) and Total Phenols

Other Toxic Metals, Cyanide, and Total Phenols
Antimony, Total
Copper, Total
Silver, Total
Arsenic, Total
Lead, Total
Thallium, Total
Beryllium, Total
Mercury, Total
Zinc, Total
Cadmium, Total
Nickel, Total
Cyanide, Total
Chromium, Total
Selenium, Total
Phenols, Total

Table III – Organic Toxic Pollutants in Each of Four Fractions in Analysis by Gas Chromatography/Mass Spectroscopy (GS/MS)

Volatiles
Acrolein
Chloroform
Methylene chloride
Acrylonitrile
Dichlorobromomethane
1,1,2,2-tetrachloroethane
Benzene
1,1-dichloroethane
Tetrachloroethylene
Bromoform
1,2-dichloroethane
Toluene
Carbon tetrachloride
1,1-dichloroethylene
1,2-trans-dichloroethylene
Carbon tetrachloride
1,2-dichloropropane
1,1,1-trichloroethane
Chlorobenzene
1,3-dichloropropylene
1,1,2-trichloroethane
Chlorodibromomethane
Ethylbenzene
Trichloroethylene
Chloroethane
Methyl bromide
Vinyl chloride
2-chloroethylvinyl ether
Methyl chloride

Acid Compounds
2-chlorophenol
2,4-dinitrophenol
Pentachlorophenol
2,4-dichlorophenol
2-nitrophenol
Phenol
2,4-dimethylphenol
4-nitrophenol
2,4,6-trichlorophenol
4,6-dinitro-o-cresol
p-chloro-m-cresol

Base/Neutral
Acenaphthene
4-chlorophenyl phenyl ether
Fluorene
Acenaphthylene
Chrysene
Hexachlorobenzene
Anthracene
Dibenzo(a,h)anthracene
Hexachlorobutadiene
Benzidine
1,2-dichlorobenzene
Hexachlorocyclopentadiene
Benzo(a)anthracene
1,3-dichlorobenzene
Hexachloroethane
Benzo(a)pyrene
1,4-dichlorobenzene
Indeno(1,2,3-cd)pyrene
3,4-benzofluoranthene
3,3′-dichlorobenzidine
Isophorone
Benzo(ghi)perylene
Diethyl phthalate
Napthalene
Benzo(k)fluoranthene
Dimethyl phthalate
Nitrobenzene
Bis(2-chloroethoxy)methane
Di-n-butyl phthalate
N-nitrosodimethylamine
Bis(2-chloroethyl)ether
2,4-dinitrotoluene
N-nitrosodi-n-propylamine
Bis(2-chloroisopropyl)ether
2,6-dinitrotoluene
N-nitrosodiphenylamine
Bis (2-ethylhexyl)phthalate
Di-n-octyl phthalate
Phenanthrene
4-bromophenyl phenyl ether
1,2-diphenylhydrazine (as azobenzene)
Pyrene
Butylbenzyl phthalate
1,2,4-trichlorobenzene
2-chloronaphthalene
Fluroranthene


Table III Continued – Organic Toxic Pollutants in Each of Four Fractions in Analysis by Gas Chromatography/Mass Spectroscopy (GS/MS)

Pesticides
Aldrin
Dieldrin
PCB-1254
Alpha-BHC
Alpha-endosulfan
PCB-1221
Beta-BHC
Beta-endosulfan
PCB-1232
Gamma-BHC
Endosulfan sulfate
PCB-1248
Delta-BHC
Endrin
PCB-1260
Chlordane
Endrin aldehyde
PCB-1016
4,4′-DDT
Heptachlor
Toxaphene
4,4′-DDE
Heptachlor epoxide

4,4′-DDD
PCB-1242


Table IV – Conventional and Nonconventional Pollutants Required to Be Tested by Existing Dischargers if Expected to be Present

Bromide
Phosphorus, Total
Boron, Total
Chlorine, Total Residual
Radioactivity
Cobalt, Total
Color
Sulfate
Iron, Total
Fecal Coliform
Sulfide
Magnesium, Total
Fluoride
Sulfite
Molybdenum, Total
Nitrate-Nitrite
Surfactants
Manganese, Total
Nitrogen, Total Organic
Aluminum, Total
Tin, Total
Oil and Grease
Barium, Total
Titanium, Total

Table V – Toxic Pollutants and Hazardous Substances Required to be Identified by Existing Dischargers if Expected to be Present

Toxic Pollutants
Asbestos


Hazardous Substances
Acetaldehyde
Dintrobenzene
Nitrotoluene
Allyl alcohol
Diquat
Parathion
Allyl chloride
Disulfoton
Phenolsulfanate
Amyl acetate
Diuron
Phosgene
Aniline
Epichlorohydrin
Propargite
Benzonitrile
Ethion
Propylene oxide
Benzyl chloride
Ethylene diamine
Pyrethrins
Butyl acetate
Ethylene dibromide
Quinoline
Butylamine
Formaldehyde
Resorcinol
Captan
Furfural
Strontium
Carbaryl
Guthion
Strychnine
Carbofuran
Isoprene
Styrene
Carbon disulfide
Isopropanolamine Dodecylbenzenesulfonate
2,4,5-T (2,4,5-Trichlorophenoxy acetic acid)
Chlorpyrifos
Coumaphos
Kelthane
TDE (Tetrachlorodiphenylethane)
Cresol
Kepone
2,4,5-TP [2-(2,4,5-Trichlorophenoxy) propanoic acid]
Crotonaldehyde
Malathion
Cyclohexane
Mercaptodimethur
Trichlorofan
2,4-D (2,4-Dichlorophenoxy acetic acid)
Methoxychlor
Triethanolamine dodecylbenzenesulfonate
Methyl mercaptan
Diazinon
Methyl methacrylate
Triethylamine
Dicamba
Methyl parathion
Trimethylamine
Dichlobenil
Mevinphos
Uranium
Dichlone
Mexacarbate
Vanadium
2,2-Dichloropropionic acid
Monoethyl amine
Vinyl acetate
Dichlorvos
Monomethyl amine
Xylene
Diethyl amine
Naled
Xylenol
Dimethyl amine
Napthenic acid
Zircon

D. Suspensions
The Environmental Protection Agency has suspended the requirements of 40 CFR 122.21(g)(7)(ii)(A) and Table I as they apply to certain industrial categories. The suspensions are as follows:
  1. At 46 FR 2046, Jan. 8, 1981, the Environmental Protection Agency suspended until further notice §122.21(g)(7)(ii)(A) as it applies to coal mines.
  2. At 46 FR 22585, Apr. 20, 1981, the Environmental Protection Agency suspended until further notice §122.21(g)(7)(ii)(A) and the corresponding portions of Item V-C of the NPDES application Form 2c as they apply to:
    1. Testing and reporting for all four organic fractions in the Greige Mills Subcategory of the Textile Mills industry (Subpart C—Low water use processing of 40 CFR part 410), and testing and reporting for the pesticide fraction in all other subcategories of this industrial category.
    2. Testing and reporting for the volatile, base/neutral and pesticide fractions in the Base and Precious Metals Subcategory of the Ore Mining and Dressing industry (subpart B of 40 CFR part 440), and testing and reporting for all four fractions in all other subcategories of this industrial category.
    3. Testing and reporting for all four GC/MS fractions in the Porcelain Enameling industry.
  3. At 46 FR 35090, July 1, 1981, the Environmental Protection Agency suspended until further notice §122.21(g)(7)(ii)(A) and the corresponding portions of Item V-C of the NPDES application Form 2c as they apply to:
    1. Testing and reporting for the pesticide fraction in the Tall Oil Rosin Subcategory (subpart D) and Rosin-Based Derivatives Subcategory (subpart F) of the Gum and Wood Chemicals industry (40 CFR part 454), and testing and reporting for the pesticide and base/neutral fractions in all other subcategories of this industrial category.
    2. Testing and reporting for the pesticide fraction in the Leather Tanning and Finishing, Paint and Ink Formulation, and Photographic Supplies industrial categories.
    3. Testing and reporting for the acid, base/neutral and pesticide fractions in the Petroleum Refining industrial category.
    4. Testing and reporting for the pesticide fraction in the Papergrade Sulfite subcategories (subparts J and U) of the Pulp and Paper industry (40 CFR part 430); testing and reporting for the base/neutral and pesticide fractions in the following subcategories: Deink (subpart Q), Dissolving Kraft (subpart F), and Paperboard from Waste Paper (subpart E); testing and reporting for the volatile, base/neutral and pesticide fractions in the following subcategories: BCT Bleached Kraft (subpart H), Semi-Chemical (subparts B and C), and Nonintegrated-Fine Papers (subpart R); and testing and reporting for the acid, base/neutral, and pesticide fractions in the following subcategories: Fine Bleached Kraft (subpart I), Dissolving Sulfite Pulp (subpart K), Groundwood-Fine Papers (subpart O), Market Bleached Kraft (subpart G), Tissue from Wastepaper (subpart T), and Nonintegrated-Tissue Papers (subpart S).
    5. Testing and reporting for the base/neutral fraction in the Once-Through Cooling Water, Fly Ash and Bottom Ash Transport Water process wastestreams of the Steam Electric Power Plant industrial category.
  4. For the duration of the suspensions, therefore, Table I effectively reads:

Table VI – Testing Requirements for Organic Toxic Pollutants by Industry Category

Industry category
GC/MS fraction2
Volatile
Acid
Neutral
Pesticide
Adhesives and sealants
1
1
1

Aluminum forming
1
1
1

Auto and other laundries
1
1
1
1
Battery manufacturing
1

1

Coal mining




Coil coating
1
1
1

Copper forming
1
1
1

Electric and electronic compounds
1
1
1
1
Electroplating
1
1
1

Explosives manufacturing

1
1

Foundries
1
1
1

Gum and wood (all subparts except D and F)
1
1


Subpart D—tall oil rosin
1
1
1

Subpart F—rosin-based derivatives
1
1
1

Inorganic chemicals manufacturing
1
1
1

Iron and steel manufacturing
1
1
1

Leather tanning and finishing
1
1
1

Mechanical products manufacturing
1
1
1

Nonferrous metals manufacturing
1
1
1
1
Ore mining (applies to the base and precious metals/Subpart B)

1


Organic chemicals manufacturing
1
1
1
1
Paint and ink formulation
1
1
1

Pesticides
1
1
1
1
Petroleum refining
1



Pharmaceutical preparations
1
1
1

Photographic equipment and supplies
1
1
1

Plastic and synthetic materials manufacturing
1
1
1
1
Plastic processing
1



Porcelain enameling




Printing and publishing
1
1
1
1
Pulp and paperboard mills—see Page C8




Rubber processing
1
1
1

Soap and detergent manufacturing
1
1
1

Steam electric power plants
1
1


Textile mills (Subpart C—Greige Mills are exempt from this table)
1
1
1

Timber products processing
1
1
1
1

1Testing required.
2The pollutants in each fraction are listed in Table II.
Table VII – Pulp and Paperboard Mills:

Subpart3
GS/MS fractions
VOA
Acid
Base/neutral
Pesticides
A
2
1
2
1
B
2
1
2
2
C
2
1
2
2
D
2
1
2
2
E
1
1
2
1
F
1
1
2
2
G
1
1
2
2
H
1
1
2
2
I
1
1
2
2
J
1
1
1
2
K
1
1
2
2
L
1
1
2
2
M
1
1
2
2
N
1
1
2
2
O
1
1
2
2
P
1
1
2
2
Q
1
1
2
1
R
2
1
2
2
S
1
1
2
1
T
1
1
2
1
U
1
1
1
2

1Must test.
2Do not test unless “reason to believe” it is discharged.
3Subparts are defined in 40 CFR Part 430.


Produced by: Nebraska Department of Environment and Energy, P.O. Box 98922, Lincoln, NE 68509-8922; phone (402) 471-2186. To view this, and other information related to our agency, visit our web site at http://dee.ne.gov.