reglab/statecodes huggingface dataset:
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.115 - Monitoring requirements for inorganic contaminants

Current through June 24, 2024
(1) GENERAL. Water
				  suppliers shall conduct monitoring for the contaminants listed in s.
				  NR
				  809.11(2) for the purpose of
				  determining compliance with the maximum contaminant levels shall be conducted
				  as follows:
(a) Groundwater sources shall be
				  sampled under normal operating conditions at every entry point to the
				  distribution system which is representative of each well being used after
				  treatment, beginning in the initial compliance period. Each sample shall be
				  taken at the same location unless conditions make another location more
				  representative of each source or treatment plant.
(b) Surface water sources or combined surface
				  water and groundwater sources shall be sampled under normal operating
				  conditions, at every entry point to the distribution system after any
				  application of treatment or in the distribution system at a point which is
				  representative of each source after treatment, beginning in the initial
				  compliance period. Each sample shall be taken at the same location unless
				  conditions make another location more representative of each source or
				  treatment plant.
(c) If a public
				  water system draws water from more than one source and the sources are combined
				  before distribution, the public water system shall be sampled at an entry point
				  to the distribution system during periods of normal operating conditions when
				  water is representative of all sources being used.
(d) Water suppliers for all new public water
				  systems or for public water systems that use a new source of water that begin
				  operation after January 22, 2004 shall demonstrate compliance with the MCLs
				  specified in s.
				  NR
				  809.11(2) in accordance with the
				  requirements in this section. The water supplier shall also comply with the
				  initial and routine sampling frequencies specified by the department to ensure
				  a water supplier can demonstrate that the public water supply is in compliance
				  with the MCLs. Routine and increased monitoring frequencies shall be conducted
				  in accordance with the requirements of this section.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.118 - Sodium monitoring, reporting and notification requirements

Current through June 24, 2024
(1) GENERAL. The
				  water supplier for a community water system shall collect and analyze one
				  sample per plant at the entry point to the distribution system for the
				  determination of sodium concentration. Samples shall be collected and analyzed
				  annually for public water systems utilizing surface water sources in whole or
				  in part, and at least every 3 years for public water systems utilizing solely
				  groundwater sources. The minimum number of samples required to be taken by the
				  public water system shall be based on the number of plants used by the public
				  water system, except that multiple wells drawing raw water from a single
				  aquifer may, with department approval, be considered one plant for determining
				  the minimum number of samples. The water supplier may be required by the
				  department to collect and analyze water samples for sodium more frequently in
				  locations where the sodium content is variable.
(2) DEPARTMENT NOTIFICATION. The water
				  supplier shall report to the department the results of the analyses for sodium
				  concentration within the first 10 days of the month following the month in
				  which the sample results were received or within the first 10 days following
				  the end of the required monitoring period as stipulated by the department,
				  whichever is first. If more than annual sampling is required, the water
				  supplier shall report the average sodium concentration within 10 days of the
				  month following the month in which the analytical results of the last sample
				  used for the annual average was received.
(3) HEALTH OFFICIALS NOTIFICATION. The water
				  supplier shall notify appropriate local health officials of the sodium
				  concentration by written notice by direct mail within 3 months of receipt of
				  sample results. A copy of each notice required to be provided by this
				  subsection and a list of health officials notified shall be sent to the
				  department within 10 days of its issuance.
(4) ANALYTICAL METHODS. Analyses for sodium
				  shall be performed as prescribed in s.
				  NR
				  809.113(1), Table A.
A primary maximum contaminant level has not been
						established for sodium.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.119 - Materials identification for corrosivity characteristics

Current through June 24, 2024
Suppliers of water for community water systems shall
					 identify whether the following construction materials are present in their
					 distribution system and report their findings to the department:
(1) Lead from piping, solder, caulking,
				  interior lining of distribution mains, alloys and home plumbing.
(2) Copper from piping and alloys, service
				  lines and home plumbing.
(3)
				  Galvanized piping, service lines and home plumbing.
(4) Ferrous piping materials such as cast
				  iron and steel.
(5) Asbestos cement
				  pipe.
(6) Vinyl lined asbestos
				  cement pipe.
(7) Coal tar lined
				  pipes and tanks.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.20 - Synthetic organic contaminant maximum contaminant levels and BATS

Current through June 24, 2024
(1) APPLICABILITY.
				  The following maximum contaminant levels for synthetic organic contaminants
				  apply to community water systems and non-transient non-community water systems.
Contaminant
MCL (mg/L)
Alachlor
0.002
Atrazine
0.003
Benzo[a]pyrene
0.0002
Carbofuran
0.04
Chlordane
0.002
2,4-D
0.07
Dalapon
0.2
Dibromochloropropane
0.0002
Di(2-ethylhexyl)adipate
0.4
Di(2-ethylhexyl)phthalate
0.006
Dinoseb
0.007
Diquat
0.02
Endothall
0.1
Endrin
0.002
Ethylene Dibromide
0.00005
Glyphosate
0.7
Heptachlor
0.0004
Heptachlor epoxide
0.0002
Hexachlorobenzene
0.001
Hexachlorocyclopentadiene
0.05
Lindane
0.0002
Methoxychlor
0.04
Oxamyl
0.2
Pentachlorophenol
0.001
Picloram
0.5
Polychlorinated biphenyls
0.0005
(PCBs)
Simazine
0.004
2,3,7,8-TCDD (Dioxin)
3x10-8
Toxaphene
0.003
2,4,5-TP
0.05
(2)
				  BEST AVAILABLE TREATMENT. The following are the BATs available for achieving
				  compliance with the maximum contaminant levels for the organic contaminants
				  listed in sub. (1):
(a) Central treatment
				  using granular activated carbon, except for glyphosate.
(b) Packed tower aeration for
				  dibromochloropropane, di(2-ethylhexyl)adipate, ethylene dibromide, and
				  hexachlorocyclopentadiene.
(c)
				  Oxidation for glyphosate.
(d)
				  Granular activated carbon, powdered activated carbon, ion exchange resins,
				  nanofiltration, and reverse osmosis for PFOS and PFOA.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.205 - Monitoring requirements for synthetic organic contaminants

Current through June 24, 2024
(1) GENERAL. Water
				  suppliers for community and non-transient non-community water systems shall
				  monitor for the synthetic organic contaminants listed in s. NR 809.20 for the
				  purposes of determining compliance with the maximum contaminant levels as
				  follows:
(a) Groundwater sources shall be
				  sampled under normal operating conditions at every entry point to the
				  distribution system which is representative of each well after treatment. Each
				  sample shall be taken at the same location unless, if approved by the
				  department, conditions make another sampling location more representative of
				  each source or treatment plant.
(b)
				  Surface water sources or combined surface water and groundwater sources shall
				  be sampled at each entry point to the distribution system after treatment, or
				  at locations in the distribution system that are representative of each source
				  after treatment. Each sample shall be taken at the same sampling location
				  unless, if approved by the department, conditions make another sampling
				  location more representative of each source or treatment plant.
(c) If the public water system draws water
				  from more than one source and the sources are combined before distribution, the
				  public water system shall be sampled at an entry point to the distribution
				  system during periods of normal operating conditions when water representative
				  of all sources is being used.
(d)
				  The water supplier for all new public water systems or for public water systems
				  that use a new source of water that begin operation after January 22, 2004
				  shall demonstrate compliance with the MCLs specified in s. NR 809.20 in
				  accordance with the requirements in this section. The water supplier shall also
				  comply with the initial sampling frequencies specified by the department to
				  ensure the public water system can demonstrate compliance with the MCLs.
				  Routine and increased monitoring frequencies shall be conducted in accordance
				  with the requirements of this section.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.207 - Compliance requirements for synthetic organic contaminants

Current through June 24, 2024
(1) MCL COMPLIANCE
				  DETERMINATION. Compliance with synthetic organic contaminant MCLs shall be
				  determined as follows:
(a) Compliance with the
				  synthetic organic contaminant MCLs specified in s.
				  NR
				  809.20 shall be determined based on the analytical
				  results obtained at each entry point. If one entry point is in violation of an
				  MCL, the public water system is in violation of the MCL.
(b) For public water systems which are
				  conducting monitoring more frequently than annual, compliance is determined by
				  a running annual average of all samples taken at each entry point. If the
				  annual average of any entry point is greater than the MCL, then the public
				  water system is out of compliance. If the initial sample or a subsequent sample
				  would cause the annual average to be exceeded, then the public water system is
				  out of compliance immediately.
(c)
				  If monitoring is conducted annually or less frequently, the public water system
				  is out of compliance if the level of a contaminant at any entry point is
				  greater than the MCL. Compliance shall be based on the average value of the
				  initial sample and the confirmation sample.
(d) Any contaminant listed in s.
				  NR
				  809.20 that is detected shall be quantified. Any
				  sample below the reported method detection limit shall be calculated at zero
				  for the purposes of determining the averages in pars. (b) and (c).
(e) If a public water system fails to collect
				  the required number of samples, compliance shall be based on the total number
				  of samples collected.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.24 - Volatile organic contaminant maximum contaminant levels and BATS

Current through June 24, 2024
(1) APPLICABILITY.
				  The following maximum contaminant levels for volatile organic contaminants
				  (VOC) apply to community water systems and non-transient, non-community water
				  systems.
Contaminant
MCL (mg/L)
Benzene
0.005
Vinyl chloride
0.0002
Carbon tetrachloride
0.005
1,2-Dichloroethane
0.005
Trichloroethylene
0.005
1,1-Dichloroethylene
0.007
1,1,1-Trichloroethane
0.20
para-Dichlorobenzene
0.075
cis-1,2-Dichloroethylene
0.07
trans-1,2-Dichloroethylene
0.1
Dichloromethane
0.005
1,2-Dichloropropane
0.005
Ethylbenzene
0.7
Monochlorobenzene
0.1
ortho-Dichlorobenzene
0.6
Styrene
0.1
Tetrachloroethylene
0.005
Toluene
1
1,2,4-Trichlorobenzene
0.07
1,1,2-Trichloroethane
0.005
Xylenes (total)
10
(2) BEST AVAILABLE TREATMENT. The following
				  are the BATs available for achieving compliance with the maximum contaminant
				  level for the volatile organic chemicals listed in sub. (1):
(a) Central treatment using packed tower
				  aeration.
(b) Central treatment
				  using granular activated carbon, except for vinyl chloride and
				  dichloromethane.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.243 - Analytical requirements for volatile organic contaminants

Current through June 24, 2024
(1) DETECTION
				  LIMITS. For the purposes of this section, detection is defined as >0.0005
				  mg/l, except for vinyl chloride for which detection is defined as >0.0002
				  mg/L.
(2) ANALYTICAL METHODS.
				  Analysis for the volatile organic contaminants listed in s.
				  NR
				  809.24 shall be conducted using the methods prescribed
				  in Table E.
Table E
SDWA Approved Methodology for Volatile Organic
					 Contaminants
Contaminant Regulated
								  Parameters:
EPA Methods
1,2
Benzene
502.2, 524.2, 524.3
Carbon tetrachloride
502.2, 524.2, 551.1,524.3
Chlorobenzene
502.2, 524.2, 524.3
1,2-Dichlorobenzene
502.2, 524.2, 524.3
1,4-Dichlorobenzene
502.2, 524.2, 524.3
1,2-Dichloroethane
502.2, 524.2, 524.3
cis-Dichloroethylene
502.2, 524.2, 524.3
trans-Dichloroethylene
502.2, 524.2, 524.3
Dichloromethane
502.2, 524.2, 524.3
1,2-Dichloropropane
502.2, 524.2, 524.3
Ethylbenzene
502.2, 524.2, 524.3
Styrene
502.2, 524.2, 524.3
Tetrachloroethylene
502.2, 524.2, 551.1, 524.3
1,1,1-Trichloroethane
502.2, 524.2, 551.1, 524.3
Trichloroethylene
502.2, 524.2, 551.1, 524.3
Toluene
502.2, 524.2, 524.3
1,2,4-Trichlorobenzene
502.2, 524.2, 524.3
1,1-Dichloroethylene
502.2, 524.2, 524.3
1,1,2-Trichloroethane
502.2, 524.2, 551.1, 524.3
Vinyl chloride
502.2, 524.2, 524.3
Xylenes (total)
502.2, 524.2, 524.3
1 Procedures for Methods 502.2, 524.2, and 551.1 are in
					 Methods for the Determination of Organic Compounds in Drinking Water Supplement
					 III, EPA/600/R-95-131, August 1995. These documents are available from the
					 National Technical Information Service (NTIS), U.S. Department of Commerce,
					 5285 Port Royal Road, Springfield, Virginia 22161. The toll free number is
					 1-800-553-6847.
2 EPA Method 524.3, Version 1.0. "Measurement of Purgeable
					 Organic Compounds in Water by Capillary Column Gas Chromatography/Mass
					 Spectrometry," June 2009. EPA 815B09009. Available at
					 http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
(3) SAMPLE COLLECTION. Samples
				  shall be collected using containers, preservatives and holding times specified
				  in s.
				  NR
				  809.203(4) Table D. In all cases,
				  samples should be analyzed as soon after collection as possible.
(4) LABORATORY CERTIFICATION. Analyses under
				  this section shall only be conducted by laboratories that have received
				  certification under ch. NR 149 or have been approved by EPA.
(5) LABORATORY EVALUATION. Each certified
				  laboratory shall determine the method detection limit (MDL) at which it is
				  capable of detecting VOCs as defined in federal law under 40 CFR, Part 136,
				  Appendix B. The maximum acceptable MDL is 0.0005 mg/L for all VOCs except vinyl
				  chloride, which is 0.0002 mg/L.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.245 - Monitoring requirements for volatile organic contaminants

Current through June 24, 2024
(1) GENERAL. Water
				  suppliers for community and non-transient non-community water systems shall
				  monitor for the contaminants listed in s.
				  NR
				  809.24 for purposes of determining compliance with the
				  maximum contaminant levels as follows:
(a)
				  Groundwater sources shall be sampled at every entry point to the distribution
				  system which is representative of each well after treatment. Each sample shall
				  be taken at the same location unless, if approved by the department, conditions
				  make another location more representative of each source, treatment plant, or
				  within the distribution system.
(b)
				  Surface water sources or combined surface water and groundwater sources shall
				  be sampled at each entry point to the distribution system after treatment or at
				  points, if approved by the department, in the distribution system that are more
				  representative of each source after treatment. Each sample shall be taken at
				  the same location unless, if approved by the department, conditions make
				  another location more representative of each source, treatment plant or within
				  the distribution system.
(c) If the
				  public water system draws water from more than one source and the sources are
				  combined before distribution, the public water system shall be sampled at an
				  entry point to the distribution system during periods of normal operating
				  conditions when water representative of all sources is being used.
(d) Water suppliers for new public water
				  systems or public water systems that use a new source of water shall
				  demonstrate compliance with the MCLs specified in s.
				  NR
				  809.24 in accordance with the requirements in this
				  section. The water supplier shall also comply with the initial sampling
				  frequencies specified by the department to ensure the public water system can
				  demonstrate compliance with the MCLs. Routine and increased monitoring
				  frequencies shall be conducted in accordance with the requirements in this
				  section.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.247 - Compliance requirements for volatile organic contaminants

Current through June 24, 2024
(1) MCL COMPLIANCE
				  DETERMINATION. Compliance with volatile organic contaminant MCLs shall be
				  determined as follows:
(a) Compliance with the
				  VOC MCLs specified in s.
				  NR
				  809.24 shall be determined based on the analytical
				  results obtained at each entry point. If one entry point is in violation of an
				  MCL, the public water system is in violation of the MCL.
(b) For public water systems which are
				  monitored more frequently than annually, compliance is determined by a running
				  annual average of all samples taken at each entry point. If the annual average
				  of any entry point is greater than the MCL, the public water system is out of
				  compliance. If the initial sample or a subsequent sample would cause the annual
				  average to exceed the MCL, the public water system is out of compliance
				  immediately.
(c) If monitoring is
				  conducted annually, or less frequently, the public water system is out of
				  compliance if the level of a contaminant at any entry point is greater than the
				  MCL. Compliance shall be based on the concentration of this sample or the
				  average value of this sample and the confirmation sample, if the department
				  required a confirmation sample.
(d)
				  If a water supplier fails to collect the required number of samples, compliance
				  shall be based on the total number of samples collected.
(e) Any concentration reported at or above
				  the method detection limit for any contaminant listed in s.
				  NR
				  809.24 shall be used in determining the averages in
				  pars. (b) and (c). Any concentration reported below the method detection limit
				  shall be calculated at zero for the purposes of determining the averages in
				  pars. (b) and (c).
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.25 - Special monitoring and reporting for selected organic contaminants and sulfate

Current through June 24, 2024
(1) GENERAL.
(a) Community systems with populations of
				  10,000 and greater shall be monitored for the contaminants listed in pars. (e)
				  and (f) on a schedule to be determined by the department. Community water
				  systems with populations less than 10,000 and non-transient, non-community
				  water systems shall be monitored for the contaminants listed in pars. (e) and
				  (f) at the discretion of the department.
(b) Surface water systems shall be sampled at
				  the entry points to the distribution system after any application of treatment.
				  The minimum number of samples is one year of quarterly samples per water
				  source.
(c) Groundwater systems
				  shall be sampled at points of entry to the distribution system representative
				  of each well after any application of treatment. The minimum number of samples
				  is one sample per entry point to the distribution system.
(d) The department may require confirmation
				  and follow-up samples for positive or negative results.
(e) List of unregulated volatile organic
				  compounds:
Chloroform
Bromoform
Chlorodibromomethane
Bromodichloromethane
Bromobenzene
Bromomethane
Chloromethane
Chloroethane
o-Chlorotoluene
p-Chlorotoluene
Dibromomethane
m-Dichlorobenzene
1,1-Dichloropropene
1,1-Dichloroethane
1,3-Dichloropropane
2,2-Dichloropropane
1,3-Dichloropropene
1,1,1,2-Tetrachloroethane
1,1,2,2-Tetrachloroethane
1,2,3-Trichloropropane
1,2,4-Trimethylbenzene
1,2,3-Trichlorobenzene
n-Propylbenzene
n-Butylbenzene
Naphthalene
Hexachlorobutadiene
1,3,5-Trimethylbenzene
p-Isopropyltoluene
Isopropylbenzene
Tert-butylbenzene
Sec-butylbenzene
Fluorotrichloromethane
Dichlorodifluoromethane
Bromochloromethane
Methyl-t-butyl ether (MTBE)
(f) List of unregulated synthetic organic
				  contaminants:
Aldrin
Aldicarb
Aldicarb Sulfoxide
Aldicarb Sulfone
Butachlor
Carbaryl
Dicamba
Dieldrin
3-Hydroxycarbofuran
Methomyl
Metolachlor
Metribuzin
Propachlor
(g) Analysis under this section shall be
				  conducted by a laboratory certified under ch. NR 149 using EPA methods 502.2,
				  524.2, 524.3, 551.1 for contaminants listed in par. (e) and EPA methods listed
				  in s.
				  NR
				  809.203, Table CM for contaminants listed in par.
				  (f).
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.30 - Distribution system microbiological contaminant maximum contaminant levels

Current through June 24, 2024
The following are the maximum contaminant levels for
					 coliform bacteria applicable to public water systems.
(1) MCL FOR ESCHERICHIA COLI (
E.
				  Coli
).
(a) The MCL for
E.
				  coli
is exceeded if any of the following occurs:
1. The public water system has an
E.
				  coli
-positive repeat sample following a total coliform-positive
				  routine sample.
2. The public water
				  system has a total coliform-positive repeat sample following an
E.
				  coli
-positive routine sample.
3. The public water system fails to take all
				  required repeat samples following an
E. coli
-positive routine
				  sample.
4. The public water system
				  fails to test for
E. coli
when any repeat sample tests
				  positive for total coliform.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.311 - Analytical requirements for microbiological contaminants

Current through June 24, 2024
(1) ANALYTICAL
				  METHODS. Analyses conducted to determine compliance with s.
				  NR
				  809.31 shall be made in accordance with methods listed
				  in Table F.
(2) SAMPLE VOLUME. The
				  standard sample volume required for total coliform analysis, regardless of
				  analytical method used, is 100 ml.
(3) SAMPLE COLLECTION PRESERVATION AND
				  HOLDING TIME.
(a) Sample collection for
				  microbiological contaminants under s.
				  NR
				  809.30 shall be conducted using the sample
				  preservation, containers and maximum holding time procedures specified in par.
				  (b).
(b) Sample preservation
				  requirements and holding times for microbiological samples are specified in
				  subds. 1. and 2. In all cases, samples shall be analyzed as soon after
				  collection as possible.
1. Total Coliform and
E. coli
samples are not required to be preserved by cooling to
				  10° C, however it is encouraged during transit. Sodium thiosulfate shall be
				  added to the sample container prior to adding water containing chlorine and the
				  holding time shall be 30 hours.
2.
				  Heterotrophs may be either held at room temperature with a holding time of 6
				  hours or preserved by cooling to 4° C with a holding time of 24
				  hours.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.312 - Compliance reporting for microbiological contaminants

Current through June 24, 2024
(1) MCL VIOLATION
				  REPORTING. When a sample collected under s. NR 809.31 (1), (2), (2m), (4), or
				  (5) exceeds maximum contaminant level in s. NR 809.30 (1), the water supplier
				  shall report the violation to the department no later than the end of the next
				  business day after it learns of the violation, and shall provide public notice
				  of the violation in accordance with s. NR 809.951.
(1m) TREATMENT TECHNIQUE VIOLATION REPORTING.
				  The water supplier for a public water system that has violated the treatment
				  technique for coliforms in s. NR 809.313 shall report the violation to the
				  department by no later than the end of the next business day after it learns of
				  the violation, and shall provide public notice of the violation in accordance
				  with s. NR 809.952.
(2) MONITORING
				  VIOLATION REPORTING. A water supplier who has failed to comply with a coliform
				  monitoring requirement shall report the monitoring violation to the department
				  within 10 days after discovering the violation, and shall notify the public as
				  specified in s. NR 809.953.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.313 - Coliform treatment technique triggers and assessment requirements for protection against potential fecal contamination

Current through June 24, 2024
(1) TREATMENT
				  TECHNIQUE TRIGGERS. Water suppliers of public water systems shall conduct
				  assessments in accordance with sub. (2) after public water systems exceed
				  treatment technique triggers in par. (a) or (b).
(a)
Level 1 treatment technique
				  triggers.
1. For public water systems
				  taking 40 or more samples per month, the public water system exceeds 5.0% total
				  coliform-positive samples for the month.
2. For public water systems taking fewer than
				  40 samples per month, the public water system has two or more total
				  coliform-positive samples in the same month.
3. The water supplier fails to take every
				  required repeat sample after any single total coliform-positive
				  sample.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.314 - Treatment technique compliance with distribution system microbiological contaminants

Current through June 24, 2024
A treatment technique violation occurs when sub. (1) or
					 (2) occurs.
(1) A public water system
				  exceeds a treatment technique trigger specified in s.
				  NR
				  809.313(1) and the water supplier
				  fails to conduct the required assessment or corrective actions within the
				  timeframe specified in s.
				  NR
				  809.313(2) and (3).
(2) The water supplier of a seasonal system
				  fails to complete a department-approved start-up procedure prior to serving
				  water to the public.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.32 - Groundwater microbiological source water monitoring - general requirements

Current through June 24, 2024
(1) APPLICABILITY OF GROUNDWATER SOURCE
				  MICROBIOLOGICAL CONTAMINANTS.
(a) This
				  section applies to all public water systems using groundwater, except for
				  public water systems that combine all of their groundwater with surface water
				  or with groundwater under the direct influence of surface water prior to
				  surface water treatment.
(b) This
				  section applies to any public water system meeting the applicability statement
				  in sub. (1), including consecutive systems that receive finished groundwater
				  from another public water system.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.325 - Groundwater source microbiological monitoring requirements

Current through June 24, 2024
(1) SAMPLING
				  LOCATION.
(a) Any groundwater source sample
				  required under sub. (2) shall be collected at a location prior to any treatment
				  of the groundwater source unless the department approves a sampling location
				  after treatment.
(b) If the public
				  water system's configuration does not allow for sampling at the well itself,
				  the water supplier may collect a sample at a department-approved location to
				  meet the requirements of par. (a), if the sample is representative of the
				  source water quality of that well.
(c) Source water samples taken in response to
				  positive total coliform samples collected under s. NR 809.31 shall be referred
				  to as triggered source water samples.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.327 - Compliance requirements for groundwater source microbiological monitoring

Current through June 24, 2024
(1) COMPLIANCE REQUIREMENTS. Treatment
				  technique submittal requirements for water suppliers for public water systems
				  with significant deficiencies or confirmed source water fecal contamination are
				  as follows:
(a) No later than 30 days after
				  receiving written notice from the department of significant deficiencies, or
				  notified by a laboratory of source water fecal contamination, water suppliers
				  for groundwater systems shall consult with the department regarding appropriate
				  corrective action, unless the department directs the water supplier to
				  implement a specific corrective action.
(b) If the department specifies interim
				  measures for protection of the public health, pending department approval of
				  the corrective action plan and schedule or pending completion of the corrective
				  action plan, the water supplier shall comply with these interim measures in
				  addition to the other requirements of this section.
(c) No later than 120 days after receiving
				  written notification from the department of a significant deficiency, or
				  notified by a laboratory of confirmed source water fecal contamination, the
				  water supplier for a groundwater system shall have one of the following:
1. A completed corrective action in
				  accordance with the applicable department plan review processes contained in
				  ch. NR 811 for community systems or ch. NR 812 for noncommunity
				  systems.
2. A written and approved
				  department corrective action plan and schedule.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.328 - Treatment technique compliance for groundwater source microbiological contaminants

Current through June 24, 2024
(1) TREATMENT TECHNIQUE VIOLATIONS FOR
				  GROUNDWATER SYSTEMS.
(a) A groundwater system
				  with a significant deficiency is in violation of the treatment technique
				  requirement if, within 120 days of the water supplier receiving written notice
				  from the department of the significant deficiency or earlier if directed by the
				  department, subd. 1. or 2. are not met.
1.
				  The water supplier has not completed a corrective action in accordance with any
				  applicable department plan approval processes under chs.
				  NR 811 and
				  812, including any department
				  specified interim actions.
2. The
				  public water system is not in compliance with a department-approved corrective
				  action plan and schedule.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.329 - Reporting and recordkeeping requirements for groundwater systems

Current through June 24, 2024
(1)
				  REPORTING. In addition to the requirements of ss.
				  NR
				  809.31 and
				  809.80, a water supplier for a
				  groundwater system regulated under s.
				  NR
				  809.32 shall provide the following information to the
				  department:
(a) A water supplier for a
				  groundwater system conducting compliance monitoring under s.
				  NR
				  809.327(3) shall notify the
				  department any time the public water system fails to meet any
				  department-specified requirements including, but not limited to, minimum
				  residual disinfectant concentration, membrane operating criteria or membrane
				  integrity, and alternative treatment operating criteria, if the operation is
				  not restored in accordance with the criteria or requirements within four hours.
				  The water supplier shall notify the department as soon as possible, but in no
				  case later than the end of the next business day after the failure.
(b) After completing any corrective action
				  under s.
				  NR
				  809.327(2), a water supplier shall
				  notify the department within 30 days of completion of the corrective
				  action.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.33 - Surface water microbiological organisms and indicators

Current through June 24, 2024
(1) GENERAL
				  REQUIREMENTS. The requirements in this section establish or extend treatment
				  techniques in lieu of maximum contaminant levels for
Cryptosporidium.
These requirements are in addition to
				  requirements for filtration and disinfection in subch. II of ch. NR
				  810.
(2) APPLICABILITY. These
				  requirements apply to all surface water and GWUDI public water systems.
(a) Wholesale systems that supply water from
				  a surface water or GWUDI source shall comply with the requirements of this
				  section based on the population of the largest public water system in the
				  combined distribution system.
(b)
				  The requirements of this section for filtered public water systems apply to all
				  public water systems required by s.
				  NR
				  810.29 to provide filtration treatment, whether or not
				  the public water system is currently operating a filtration system.
(c) The requirements of this section for
				  unfiltered public water systems apply only to unfiltered public water systems
				  that met and continue to meet the filtration avoidance criteria in s.
				  NR
				  810.30 as applicable.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.332 - Sampling schedules for surface water source water monitoring

Current through June 24, 2024
(1) SAMPLING
				  SCHEDULES. Water suppliers for public water systems required to conduct source
				  water monitoring under s.
				  NR
				  809.331 shall submit a sampling schedule that
				  specifies the calendar dates when the water supplier will collect each required
				  sample.
(a) Water suppliers shall submit
				  sampling schedules no later than 3 months prior to the applicable date listed
				  in s.
				  NR
				  809.331(3), Table H, for each round
				  of required monitoring.
(b) Water
				  suppliers for public water systems serving at least 10,000 people shall submit
				  their sampling schedule for the initial round of source water monitoring under
				  s.
				  NR
				  809.331(1) to EPA. If a water
				  supplier is unable to submit the sampling schedule electronically, the water
				  supplier may use an alternative approach for submitting the sampling schedule
				  subject to EPA approval.
(c) Water
				  suppliers for public water systems serving fewer than 10,000 people shall
				  submit their sampling schedules for the initial round of source water
				  monitoring under s.
				  NR
				  809.331(1) to the EPA or the
				  department.
(d) Water suppliers
				  shall submit sampling schedules for the second round of source water monitoring
				  under s.
				  NR
				  809.331(2) to the
				  department.
(e) If EPA or the
				  department does not respond to a water supplier regarding its sampling
				  schedule, the water supplier shall sample at the reported schedule.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.333 - Sampling locations for surface water source water monitoring

Current through June 24, 2024
(1) GENERAL
				  REQUIREMENTS. Water suppliers for public water systems required to conduct
				  source water monitoring under s.
				  NR
				  809.331 shall collect samples for each plant that
				  treats a surface water or GWUDI source. Where multiple plants draw water from
				  the same influent, such as the same pipe or intake, the department may approve
				  one set of monitoring results to be used to satisfy the requirements of s.
				  NR
				  809.331 for all plants.
(2) SAMPLE COLLECTION LOCATION. The water
				  supplier shall collect source water samples prior to chemical treatment, such
				  as coagulants, oxidants and disinfectants, unless the public water system meets
				  the condition of this subsection. The department may approve a water supplier
				  to collect a source water sample after chemical treatment if the department
				  determines that collecting a sample prior to chemical treatment is not feasible
				  for the public water system and that the chemical treatment is unlikely to have
				  a significant adverse effect on the analysis of the sample.
(3) RECYCLED FILTER BACKWASH. Water suppliers
				  for public water systems that recycle filter backwash water shall collect
				  source water samples prior to the point of filter backwash water. All public
				  water systems that recycle filter backwash water shall comply with all of the
				  requirements under ss.
				  NR
				  810.295,
				  811.860, and
				  811.862.
(4) BANK FILTRATION.
(a) Water suppliers for public water systems
				  that receive Cryptosporidium treatment credit for bank filtration under s.
				  NR
				  810.29(5) or
				  810.37(2), as
				  applicable, shall collect source water samples in the surface water prior to
				  bank filtration.
(b) Water
				  suppliers for public water systems that use bank filtration as pretreatment to
				  a filtration plant shall collect source water samples from the collector well
				  after bank filtration. Use of bank filtration during monitoring shall be
				  consistent with routine operational practice. When samples are collected after
				  a bank filtration process, public water systems may not receive treatment
				  credit for the bank filtration under s.
				  NR
				  810.43(3).
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.334 - Analytical methods for surface water source water monitoring

Current through June 24, 2024
(1)
				  CRYPTOSPORIDIUM. Water suppliers shall analyze for
Cryptosporidium
using
Method 1623: Cryptosporidium and
				  Giardia in Water by Filtration/IMS/FA,
2005, United States
				  Environmental Protection Agency, EPA815-R05002 or
Method 1622:
				  Cryptosporidium in Water by Filtration/IMS/FA,
2005, United States
				  Environmental Protection Agency, EPA815R05001. The water supplier may obtain a
				  copy of these methods online from
				  http://www.epa.gov/safewater/disinfection/lt2. Water suppliers may also use
EPA Method 1623.1: Cryptosporidium and Giardia in Water by
				  Filtration/IMS/FA
, 2012. EPA-816-R-12-001. (Available at
				  http://water.epa.gov/drink
.
)
(a)
				  Water suppliers shall analyze at least a 10 L sample or a packed pellet volume
				  of at least 2 mL as generated by the methods listed in this subsection. Water
				  suppliers unable to process a 10 L sample shall analyze as much sample volume
				  as can be filtered by two filters approved by EPA for the methods listed in
				  this subsection, up to a packed pellet volume of at least 2 mL.
(b) Matrix spike (MS) samples, as required by
				  the methods in this subsection, shall be spiked and filtered by a laboratory
				  approved for
Cryptosporidium
analysis under s.
				  NR
				  809.335. If the volume of the MS sample is greater
				  than 10 L, the water supplier may filter all but 10 L of the MS sample in the
				  field, and ship the filtered sample and the remaining 10 L of source water to
				  the laboratory. In this case, the laboratory shall spike the remaining 10 L of
				  water and filter it through the filter used to collect the balance of the
				  sample in the field.
(c) Flow
				  cytometer-counted spiking suspensions shall be used for MS samples and ongoing
				  precision and recovery (OPR) samples.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.335 - Approved laboratories for surface water source monitoring

Current through June 24, 2024
(1)
				  CRYPTOSPORIDIUM. Water suppliers shall have
Cryptosporidium
samples analyzed by a laboratory that is approved under EPA's Laboratory
				  Quality Assurance Evaluation Program for Analysis of
Cryptosporidium
in Water or a laboratory that has been
				  certified for
Cryptosporidium
analysis by an equivalent
				  department laboratory certification program.
(2)
E. COLI.
Any laboratory
				  certified by the EPA, The NELAC Institute (TNI), or the department of
				  agriculture, trade and consumer protection for total coliform or
E.
				  coli.
analysis under s.
				  NR
				  809.323(1) (c), Table F is approved
				  for
E. coli
analysis under this section when the laboratory
				  uses the same technique for
E. coli
that the laboratory uses
				  for s.
				  NR
				  809.334(2), Table I.
(3) TURBIDITY. Measurements of turbidity
				  shall be made by a party approved by the department.
Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 809 - Safe Drinking Water › Subchapter I - Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants › Section NR 809.336 - Reporting source water monitoring results

Current through June 24, 2024
(1) Water suppliers
				  shall report results from the source water monitoring required under s.
				  NR 809.331(1) and
				  (2) no later than 10 days after the end of
				  the first month following the month when the sample is collected.
(a) All water suppliers for public water
				  systems serving at least 10,000 people shall report the results from the
				  initial source water monitoring required under s.
				  NR
				  809.331(1) to EPA.
(b) If a water supplier is unable to report
				  monitoring results electronically, the water supplier may use an alternative
				  approach for reporting monitoring results that EPA approves.