reglab/statecodes huggingface dataset:
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10726 - Radionuclides; initial monitoring for gross alpha particle activity, radium-226, radium-228, and uranium

Current through Vol. 24-12, July 15, 2024
Rule 726.
(1) A
				  community water supply shall conduct initial monitoring for gross alpha
				  particle activity, radium-226, radium-228, and uranium to determine compliance
				  with R 325.10603(2) (a), (b), and (d).
(2) An existing supply shall sample at every
				  entry point to the distribution system that is representative of all sources of
				  water being used, known as "sampling point," under normal operating conditions.
				  The supply shall take each sample at the same sampling point unless conditions
				  make another sampling point more representative of each source.
(3) A new community water supply or a
				  community water supply that uses a new source of water shall begin to conduct
				  initial monitoring for the new source within the first quarter after initiating
				  use of the source. A community water supply shall conduct more frequent
				  monitoring when ordered by the department if possible contamination or if
				  changes in the distribution system or treatment processes occur which may
				  increase the concentration of radioactivity in finished water.
(4) A supply shall conduct initial monitoring
				  for gross alpha particle activity, radium-226, radium-228, and uranium in the
				  following manner:
(a) A supply shall collect 4
				  consecutive quarterly samples at all sampling points before December 31, 2007.
				  A supply that has results of samples collected from a sampling point during the
				  compliance period that began between June 1, 2000 and December 8, 2003, may use
				  those results to satisfy the initial monitoring requirements for that sampling
				  point.
(b) For gross alpha particle
				  activity, uranium, radium-226, and radium-228 monitoring, the department may
				  waive the final 2 quarters of initial monitoring for a sampling point if the
				  results of the samples from the previous 2 quarters are below the detection
				  limit.
(c) If the average of the
				  initial monitoring results for a sampling point is above the MCL, then the
				  supply shall collect and analyze quarterly samples at that sampling point until
				  the supply has results from 4 consecutive quarters that are at or below the
				  MCL, unless the supply enters into another schedule as part of a formal
				  compliance agreement with the department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10728 - Radionuclides; reduced monitoring for gross alpha particle activity, radium-226, radium-228, and uranium

Current through Vol. 24-12, July 15, 2024
Rule 728.
(1) The
				  department may allow community water supplies to reduce the future frequency of
				  monitoring from once every 3 years to once every 6 or 9 years at each sampling
				  point, based on the criteria in the following table:
Table 1
Radionuclides reduced monitoring criteria
For gross alpha particle activity, uranium, and
								combined radium 226 radium-228, if the average of the initial monitoring
								results for each contaminant at a sampling point is...
Then the supply shall collect and analyze for, that
								contaminant using at least one sample at that sampling point every...
(a) Below the detection
								limit1
9 years
(b) At or above the detection limit, but at or below
								half the MCL2
6 years
(c) Above half the MCL, but at or below the
								MCL2
3 years
1 For combined radium-226
								and 228, both contaminants shall be below the detection limit. 
								2 For combined radium-226
								and radium-228, the analytical results for radium-226 and 228 shall be
								combined.
(2) A supply
				  shall use the samples collected during the reduced monitoring period to
				  determine the monitoring frequency for subsequent monitoring periods. For
				  example, if a supply's sampling point is on a 9-year monitoring period, and the
				  sample result is above half the MCL, then the next monitoring period for that
				  sampling point is 3 years.
(3) If a
				  supply has a monitoring result that exceeds the MCL while on reduced
				  monitoring, then the supply shall collect and analyze quarterly samples at that
				  sampling point until the supply has results from 4 consecutive quarters that
				  are at or below the MCL, unless the supply enters into another schedule as part
				  of a formal compliance agreement with the department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10729 - Radionuclides; compositing; substituting gross alpha for radium-226 or uranium

Current through Vol. 24-12, July 15, 2024
Rule 729.
(1) To
				  fulfill quarterly monitoring requirements for gross alpha particle activity,
				  radium-226, radium-228, or uranium, a supply may composite up to 4 consecutive
				  quarterly samples from a single entry point if analysis is done within 1 year
				  of the first sample. The department considers analytical results from the
				  composited sample as the average analytical result to determine compliance with
				  the MCLs and the future monitoring frequency. If the analytical result from the
				  composited sample is more than half the MCL, then the department may direct the
				  supply to take additional quarterly samples before allowing the supply to
				  sample under a reduced monitoring schedule.
(2) A gross alpha particle activity
				  measurement may be substituted for the required radium-226 measurement if the
				  measured gross alpha particle activity does not exceed 5 pCi/l. A gross alpha
				  particle activity measurement may be substituted for the required uranium
				  measurement if the measured gross alpha particle activity does not exceed 15
				  pCi/l. The gross alpha measurement shall have a confidence interval of 95%
				  (1.65s, where s is the standard deviation of the net counting rate of the
				  sample) for radium-226 and uranium. If a supply uses a gross alpha particle
				  activity measurement instead of a radium-226 or uranium measurement, or both,
				  then the gross alpha particle activity analytical result shall be used to
				  determine the future monitoring frequency for radium-226 or uranium, or both.
				  If the gross alpha particle activity result is less than detection, then half
				  the detection limit shall be used to determine compliance and the future
				  monitoring frequency.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10730 - Radionuclides; monitoring requirements for beta particle and photon radioactivity; applicability

Current through Vol. 24-12, July 15, 2024
Rule 730.
(1) To
				  determine compliance with the maximum contaminant levels in R 325.10603 (2) (c)
				  for beta particle and photon radioactivity, a community water supply, also
				  considered a "water supply" or "supply" in this rule, designated by the
				  department as either vulnerable or utilizing water contaminated by effluents
				  from nuclear facilities, shall sample for beta particle and photon
				  radioactivity. The department's designation shall be based on monitoring data,
				  environmental surveillance data collected in the vicinity of nuclear
				  facilities, or source water assessments.
(2) Beginning within 1 quarter after being
				  notified of the department's designation and continuing until the department
				  reviews and either reaffirms or removes the designation, a supply shall collect
				  samples at each entry point to the distribution system, known as sampling
				  point, under both of the following provisions:
(a) For a vulnerable supply, quarterly
				  samples for beta emitters and annual samples for tritium and strontium
				  90.
(b) For a supply utilizing
				  waters contaminated by effluents from nuclear facilities, quarterly samples for
				  beta emitters and iodine 131 and annual samples for tritium and strontium 90. A
				  supply shall monitor and analyze the samples under all of the following
				  provisions:
(i) Quarterly monitoring for
				  gross beta particle activity shall be based on the analysis of monthly samples
				  or the analysis of a composite of 3 monthly samples.
(ii) For iodine 131, a composite of 5
				  consecutive daily samples shall be analyzed once each quarter. As ordered by
				  the department, more frequent monitoring shall be conducted when iodine 131 is
				  identified in the finished water.
(iii) Annual monitoring for strontium 90 and
				  tritium shall be conducted by means of the analysis of a composite of 4
				  consecutive quarterly samples or analysis of 4 quarterly samples.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10731 - Sample analyses; approved laboratories and personnel

Current through Vol. 24-12, July 15, 2024
Rule 731. For the purpose of determining compliance with
					 the monitoring requirements prescribed by this part, samples shall be
					 considered valid only if they have been analyzed by a laboratory approved by
					 the department, except that measurements for alkalinity, bromide, calcium,
					 daily chlorite samples at the entrance to the distribution system,
					 conductivity, magnesium, orthophosphate, pH, residual disinfectant
					 concentration, silica, specific ultraviolet absorbance, temperature, and
					 turbidity may be performed by personnel acceptable to the
					 department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10732 - Specific testing frequencies; sample locations and parameters

Current through Vol. 24-12, July 15, 2024
Rule 732.
(1) The
				  department may require a supplier of water to monitor raw water, water during
				  stages in the treatment system if treatment is employed, and water from the
				  distribution system at frequencies and for parameters as specified by the
				  department.
(2) Parameters required
				  by subrule (1) may include other constituents than the MCL's including, but not
				  limited to, chlorine residual.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10733 - Modification of monitoring requirements for type I public water supplies which supply water to additional public water supplies

Current through Vol. 24-12, July 15, 2024
Rule 733. When a type I public water supply supplies water
					 to 1 or more other public water supplies, the department may modify the
					 monitoring requirements prescribed by this part to the extent that the
					 interconnection of the public water supplies justifies treating them as a
					 single water supply for monitoring purposes.
Modified monitoring shall be conducted pursuant to a
					 schedule specified by the department and concurred in by the regional
					 administrator.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10734 - Required reporting to the department

Current through Vol. 24-12, July 15, 2024
Rule 734.
(1)
				  Unless otherwise specified in this part, a supplier of water shall report to
				  the department the results of a measurement or analysis required by this part
				  within the first 10 days of the month following the month in which the results
				  are received, or within the first 10 days following the end of the required
				  monitoring period, whichever is sooner.
(2) Unless otherwise specified in these
				  rules, a supplier of water shall report, to the department, within 48 hours,
				  failing to comply with a state drinking water standard or other requirement
				  under these rules, including failing to comply with a monitoring requirement
				  under this part.
(3) A supplier of
				  water shall not be required to report analytical results to the department in
				  cases where the department laboratory performs the analysis and reports the
				  results to the department.
(4) A
				  public water system, upon discovering that a waterborne disease outbreak that
				  is potentially attributable to that water system has occurred, shall report
				  that occurrence to the department as soon as possible, but not later than the
				  end of the next business day.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10735 - Vigilance of threats or hazards; notification to department

Current through Vol. 24-12, July 15, 2024
Rule 735.
(1) A
				  public water supply shall maintain continued vigilance of activities posing
				  threats or hazards of undue contamination to the source of water.
(2) In the event of a threat of contamination
				  of a public water supply source, the public water supply shall immediately
				  notify the department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10739 - Groundwater supply rules; groundwater source microbial monitoring and analytical methods

Current through Vol. 24-12, July 15, 2024
Rule 739.
(1) All
				  of the following provisions apply to triggered source water monitoring in a
				  groundwater supply that is subject to
				  R 325.10612:
(a) A groundwater supply shall conduct
				  triggered source water monitoring if both of the following conditions exist:
(i) The groundwater supply does not provide
				  at least 4-log treatment of viruses (using inactivation, removal, or a
				  department approved combination of 4-log virus inactivation and removal) before
				  or at the first customer for each groundwater source.
(ii) The groundwater supply is notified that
				  either of the following conditions exists:
(A) A sample collected under
				  R 325.10705 to
				  R 325.10706 is total coliform
				  positive and the sample is not invalidated under
				  R 325.10707a until March 31,
				  2016.
(B) A sample collected under
				  R 325.10704d to R 325.10704g is total coliform-positive and the sample is not
				  invalidated under R 325.10704c(3) beginning April 1, 2016.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 7 - SURVEILLANCE, INSPECTION, AND MONITORING › Section R. 325.10739b - Groundwater supply rules; reporting and recordkeeping

Current through Vol. 24-12, July 15, 2024
Rule 739b.
(1) In
				  addition to the reporting requirements of R 325.10734, a groundwater supply
				  subject to R 325.10612 shall provide all of the following information to the
				  department:
(a) A groundwater supply
				  conducting compliance monitoring under R 325.10739a shall notify the department
				  any time the groundwater supply fails to meet a department specified
				  requirement including, but not limited to, minimum residual disinfectant
				  concentration, membrane operating criteria or membrane integrity, and
				  alternative treatment operating criteria, if operation under the criteria or
				  requirements is not restored within 4 hours. The groundwater supply shall
				  notify the department as soon as possible, but in no case later than the end of
				  the next business day.
(b) After
				  completing any corrective action under R 325.10612a (1), a groundwater supply
				  shall notify the department within 30 days of completion of the corrective
				  action.
(c) If a groundwater supply
				  subject to the requirements of R 325.10739 (1) does not conduct source water
				  monitoring under R 325.10739 (1) (e) (ii), the groundwater supply shall provide
				  documentation to the department within 30 days of the total coliform positive
				  sample that it met the department criteria.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10801 - Purpose

Current through Vol. 24-12, July 15, 2024
Rule 801. The purpose of this part is to establish certain
					 requirements and objectives for the isolation and construction of wells used by
					 public water supplies to provide a continuous, adequate quantity of water
					 meeting the state drinking water standards.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10802 - Applicability; approval of deviation from minimum standards and requirements

Current through Vol. 24-12, July 15, 2024
Rule 802.
(1) This
				  part applies to public water supplies that use wells to supply groundwater for
				  a public water supply. This part sets minimum standards and requirements to be
				  met to receive permits or approvals from the department for waterworks systems.
				  For purpose of this part, a supplier of a proposed public water supply is
				  considered a public water supply.
(2) Deviations from the minimum standards and
				  requirements in this part may be approved by the department if a public water
				  supply demonstrates that a deviation will not adversely affect the public
				  health. Deviations from this part shall be by permit condition for type I or
				  type II public water supplies, and in writing by the department for type III
				  public water supplies.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10804 - Type III public water supplies; applicability of other rules

Current through Vol. 24-12, July 15, 2024
Rule 804. Type III public water supplies shall comply with
					 part 1 well construction code, R 325.1601 to R 325.1676 promulgated under part
					 127 water supply and sewer systems of 1978 PA 368, MCL 333.12701 to 333.12715,
					 except where specific requirements for type III public water supplies
					 prescribed by this part are more restrictive.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10805 - Retroactivity of rules; significant changes or major repairs made to existing well; utilization of well not in compliance with this part

Current through Vol. 24-12, July 15, 2024
Rule 805.
(1) This
				  part is not retroactive for individual well installations constructed before
				  January 12, 1978 unless 1 or more of the following conditions exists:
(a) Water quality from the well does not meet
				  the state drinking water standards.
(b) The department determines that continued
				  use of a well represents a health hazard.
(c) A well violates rules that were in effect
				  at the time of construction.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10806 - Change in classification of public water supply

Current through Vol. 24-12, July 15, 2024
Rule 806. Requirements or criteria of this part for the
					 various types of public water supplies shall be based on the facilities which
					 the public water supply is intended to serve. If the volume of water used or
					 the type of facilities or number of units served by a public water supply
					 changes in such a way as to cause a change in the classification of a public
					 water supply, the public water supply shall meet requirements applicable to the
					 new classification.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10807 - Location of well

Current through Vol. 24-12, July 15, 2024
Rule 807. A well shall be located with due consideration
					 given to the extent of the property, the contour of the land, elevation of the
					 site, the depth to the water table, other geological characteristics, local
					 groundwater conditions, and other factors necessary to provide a safe and
					 reliable public water supply. A well shall meet all of the following
					 requirements:
(a) Located so the well
				  and its surrounding area is controlled and protected from potential sources of
				  contamination.
(b) Adequate in
				  size, design, and development for the intended use.
(c) Constructed to maintain existing natural
				  protection against contamination of water-bearing formations and to prevent all
				  known sources of contamination from entering the well.
(d) Protected against the entry of surface
				  water.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10808 - Standard isolation area generally

Current through Vol. 24-12, July 15, 2024
Rule 808. The standard isolation areas from any existing or
					 potential sources of contamination, including, but not limited to, storm and
					 sanitary sewers, pipelines, septic tanks, drain fields, dry wells, cesspools,
					 seepage pits, leaching beds, barnyards, or any surface water, other area or
					 facility from which contamination of the groundwater may occur, are established
					 for public water supplies as follows:
(a) For type I and type IIa public water
				  supplies, the standard isolation area is an area measured with a radius of 200
				  feet in all directions from the well.
(b) For type IIb and type III water supplies,
				  the standard isolation area is an area measured with a radius of 75 feet in all
				  directions from the well.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10809 - Standard isolation area; modification; approval

Current through Vol. 24-12, July 15, 2024
Rule 809.
(1)
				  Modifications of the standard isolation area, if any, shall be determined for a
				  site based on a study of hydrogeological conditions provided to the department
				  by a public water supply under R 325.10813 and R 325.10814.
(2) The department may require an increase or
				  approve a decrease in the standard isolation area of a well.
(3) Approval of the isolation area shall be
				  obtained from the department before construction of a production well used for
				  drinking or household purposes as part of a public water supply.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10810 - Standard isolation area for type I public water supplies; ownership or control

Current through Vol. 24-12, July 15, 2024
Rule 810.
(1) A
				  type I public water supply shall own the approved isolation area except as
				  provided by subrule (2) of this rule to prevent use of the property which could
				  result in contamination of the public water supply.
(2) If a type I public water supply
				  adequately demonstrates to the department that ownership of the isolation area
				  is not possible, adequate control of the isolation area shall be required.
				  Adequate control may be a long-term lease or easement including provisions to
				  prevent use of the isolation area which could result in contamination of the
				  well.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10811 - Sewers within approved isolation area

Current through Vol. 24-12, July 15, 2024
Rule 811.
(1) A
				  storm or sanitary sewer shall not be located within the approved isolation area
				  of a well for a type I or type IIa public water supply.
(2) A buried sewer, located within the
				  approved isolation area for a type IIb or type III public water supply, shall
				  be constructed with materials and joints as approved in writing by the
				  department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10812 - Location of wells; major sources of contamination

Current through Vol. 24-12, July 15, 2024
Rule 812. Wells serving type I and type IIa public water
					 supplies shall be located a minimum distance of 2,000 feet, and wells serving
					 type IIb and type III public water supplies shall be located a minimum distance
					 of 800 feet, from known major sources of contamination, including large scale
					 waste disposal sites, land application of sanitary wastewater or sludges,
					 sanitary landfills, and chemical or waste chemical storage or disposal
					 facilities. The department may require an increase or approve a decrease in the
					 2,000 foot distance for type I or type IIa public water supplies or the 800
					 foot distance for type IIb or type III public water supplies based on a study
					 of hydrogeological conditions or other methods approved by the department for
					 identifying the capture zone of a well.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10813 - Study of hydrogeological conditions by type I and type IIa public water supplies

Current through Vol. 24-12, July 15, 2024
Rule 813.
(1) A
				  type I or type IIa public water supply shall prepare a study of hydrogeological
				  conditions for determination of an isolation area and the acceptability of a
				  test well location. The study shall be provided to the department and approval
				  obtained.
(2) Previous studies of
				  hydrogeological conditions that meet the criteria and intent of this rule may
				  be considered by the department in determining the scope of or need for a
				  study.
(3) A study of
				  hydrogeological conditions shall mean investigations and a compilation and
				  evaluation of data necessary to determine the isolation area, the acceptability
				  of a test well location and construction, and the availability of water at that
				  location. The study of hydrogeological conditions may include the following:
(a) The type of public water
				  supply.
(b) The well capacity
				  required of the public water supply.
(c) The test well depth and construction
				  features.
(d) Identification of
				  geological formations, including the thickness and characteristics of the
				  aquifer, the number and thicknesses of protective layers, and if deemed
				  necessary by the department, the areal extent of the protective
				  formations.
(e) Location of the
				  test well relative to sources of contamination.
(f) Susceptibility of the test well location
				  to flooding.
(g) Depth to the water
				  table from the established ground surface.
(h) Proximity of the well to surface
				  water.
(i) An aquifer test of the
				  well in accordance with R 325.10830.
(j) Water quality analyses.
(k) Identification of the contributing area
				  to a well based on ground water flow simulations using a computer model as
				  approved by the department.
(l) The
				  location of the test well as a latitude and longitude expressed in
				  degrees-minutes-seconds or degrees-decimal degrees to 5 significant
				  digits.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10814 - Studies of type IIb and type III public water supplies

Current through Vol. 24-12, July 15, 2024
Rule 814. If a modification of the standard isolation area
					 is requested by a type IIb or type III public water supply, the public water
					 supply shall submit to the department and obtain approval for a study of
					 hydrogeological conditions consistent with the capacity of the well and the
					 capacity of the aquifer, and may include identification of the contributing
					 area to a well serving the type IIb or type III public water supply based on
					 groundwater flow simulations using a computer model as approved by the
					 department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10815 - Conversion of a test well to a production well serving type I and type II public water supplies; procedures for department approval

Current through Vol. 24-12, July 15, 2024
Rule 815.
(1) To
				  receive department approval of the location and acceptability of a test well
				  for conversion to a production well serving a type I or type II public water
				  supply, the following conditions shall be met:
(a) Approval has been obtained from the
				  department for the land parcel on which the test well is located.
(b) For type I public water supplies,
				  ownership or adequate control as required by R 325.10810 or an option for
				  ownership or adequate control of the required isolation area has been secured
				  for the land parcel on which the test well is located.
(c) Where required, a study of
				  hydrogeological conditions has been conducted that includes identification of
				  the capture zone of the proposed production wells and has been approved by the
				  department.
(d) Satisfactory
				  aquifer tests have been completed on the test well or the well capacity has
				  been established to the satisfaction of the department by other
				  means.
(e) Water quality analyses
				  show results meeting the state drinking water standards.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10816 - Location of well in area subject to flooding

Current through Vol. 24-12, July 15, 2024
Rule 816.
(1) A
				  well shall not be located in an area subject to flooding unless the well is
				  protected as approved in writing by the department. The ground surface
				  immediately adjacent to a well casing shall be graded so that surface water is
				  diverted away from the casing. Surface flooding shall not be allowed closer
				  than 25 feet from the well.
(2) The
				  top of a well casing, any other opening into the well casing, well
				  appurtenances, and controls shall be not less than 2 feet above the greater of
				  the following:
(a) One hundred-year flood
				  elevation.
(b) The maximum recorded
				  flood elevation.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10817 - Top of well casing; elevation

Current through Vol. 24-12, July 15, 2024
Rule 817. The top of a well casing shall terminate not less
					 than 12 inches above the established ground surface, or the floor of a pump
					 room, well room, or well house. In addition, for type II b and type III public
					 water supplies the top of a well casing may terminate not less than 12 inches
					 above the floor of an approved basement offset.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10818 - Minimum well casing depth

Current through Vol. 24-12, July 15, 2024
Rule 818. Casings for all wells serving public water
					 supplies shall extend not less than 25 feet below the established ground
					 surface.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10819 - Well casing in rock formation

Current through Vol. 24-12, July 15, 2024
Rule 819.
(1) In
				  an area where a well is to be developed in fractured, jointed, or cavernous
				  rock, the well shall not be approved as a production well unless all of the
				  following conditions exist:
(a) Adequate
				  protective material above the aquifer.
(b) No evidence of aquifer
				  contamination.
(c) No direct flow
				  from surface or near surface sources to the rock aquifer.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10820 - Water suction lines

Current through Vol. 24-12, July 15, 2024
Rule 820.
(1) A
				  casing shall not be used as a suction line unless protected by a permanent
				  outer casing.
(2) For type I and
				  type IIa public water supplies, a buried water suction line extending outside
				  the well casing is prohibited.
(3)
				  For type IIb and type III public water supplies, a buried water suction line
				  extending outside the well may be used if protected in a manner approved by the
				  department.
(4) Any buried pump
				  discharge line shall be under positive pressure at all times.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10821 - Casing materials

Current through Vol. 24-12, July 15, 2024
Rule 821. All casings used for wells serving a public water
					 supply shall be of materials approved in writing by the
					 department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10822 - Grouting

Current through Vol. 24-12, July 15, 2024
Rule 822. All wells that serve public water supplies shall
					 be grouted by a method approved by the department to obtain a tight bond
					 between the well casing and the undisturbed natural earth formations, thus
					 preventing the entrance of any surface water or near surface contaminants to
					 the groundwater source.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10823 - Flowing artesian wells; well construction

Current through Vol. 24-12, July 15, 2024
Rule 823. In areas where flowing artesian wells are
					 commonly encountered, the well construction methods proposed by a public water
					 supply to protect a flowing artesian aquifer and confining strata shall be
					 submitted to the department and approval obtained prior to the start of
					 construction.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10824 - Flowing artesian wells; flow control

Current through Vol. 24-12, July 15, 2024
Rule 824. For flowing artesian wells, a direct connection
					 between a discharge pipe for flow control and a sewer or other source of
					 contamination is prohibited.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10825 - Elevation of discharge from well casing; location of connection to well casing

Current through Vol. 24-12, July 15, 2024
Rule 825.
(1) For
				  type I and type IIa public water supplies, a discharge from a well casing at an
				  elevation less than 12 inches above the established ground surface is
				  prohibited, except where an installation with an approved pitless adapter is
				  permitted by the department.
(2)
				  For type IIb and type III public water supplies, a connection to a well casing
				  may be at least 12 inches above the floor of an approved basement offset, pump
				  room, or well room, or the requirements of subrule (1) shall be met.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10826 - Construction and location of room housing pumping equipment or room housing top of well casing

Current through Vol. 24-12, July 15, 2024
Rule 826.
(1) For
				  type I and type IIa public water supplies, a room housing pumping equipment or
				  a room housing the top of a well casing, where used, shall be constructed above
				  the established ground surface allowing access to the pump for maintenance or
				  repair.
(2) For type IIb and type
				  III public water supplies, a room housing pumping equipment may be located
				  below the established ground surface if it is located in, or attached to, an
				  approved basement or is drained to the ground surface by gravity.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10827 - Tail pipe or pump suction pipe; termination

Current through Vol. 24-12, July 15, 2024
Rule 827. In screened wells, the bottom of a tail pipe or
					 pump suction pipe shall terminate not less than 5 feet above the top of the
					 screen.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10828 - Casing vents; sampling tap; relief valves

Current through Vol. 24-12, July 15, 2024
Rule 828.
(1)
				  Casing vents shall be both of the following:
(a) Provided on all wells and constructed to
				  prevent the entrance of contaminants into the well.
(b) Extended to the outside atmosphere above
				  the roof level if toxic or flammable gases are present.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10829 - Well appurtenances; type I public water supplies

Current through Vol. 24-12, July 15, 2024
Rule 829.
(1) The
				  following is required of each well serving type I public water supplies:
(a) Each well shall be equipped with a meter
				  or other acceptable means to measure the volume of water produced.
(b) Each well shall be provided with an
				  electrical outlet energized with the pump motor, chemical injection taps, and
				  space necessary for the addition of chemicals so that treatment equipment can
				  be readily connected to the well discharge line in the event the department
				  requires chemical treatment to protect the public health.
(c) Each well shall be equipped to allow
				  pumping to waste without interrupting normal service in the distribution
				  system.
(d) Each well shall be
				  equipped with a means to measure the water level.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10830 - Aquifer or performance testing requirements

Current through Vol. 24-12, July 15, 2024
Rule 830.
(1) Each
				  well constructed to serve a public water supply shall undergo an aquifer test
				  or performance test, by a method approved by the department, after installation
				  of a production well and prior to use of a well to supply water to a waterworks
				  system.
(2) For type I and type IIa
				  public water supplies, aquifer tests or performance tests shall be performed on
				  the test well or production well. The tests may be required to do any of the
				  following:
(a) Determine the adequacy of well
				  depth and development.
(b) Secure
				  water samples for quality analyses.
(c) Determine well capacity and production on
				  a long-term basis.
(d) Determine
				  drawdown.
(e) Select permanent
				  pumping equipment.
(f) Evaluate
				  well efficiency.
(g) Assure proper
				  utilization and protection of groundwater aquifers.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10831 - New or reconditioned well; disinfection; water samples

Current through Vol. 24-12, July 15, 2024
Rule 831.
(1) A
				  new or reconditioned well or pump installation or well facility which is opened
				  for maintenance or inspection shall be pumped to waste until the water is as
				  clear as reasonably possible. Thereafter, the well and pumping equipment shall
				  be properly disinfected.
(2) Before
				  placing a new or reconditioned well or a well facility which is opened for
				  maintenance or inspection into service, all of the following shall occur:
(a) Testing shall show the water to be free
				  of chlorine before collection of each bacteriologic sample.
(b) Not fewer than 2 consecutive water
				  samples for bacteriological analyses shall be collected from the well or well
				  facility 24 hours apart, unless an alternate interval is approved by the
				  department.
(c) Each analysis shall
				  not indicate the presence of coliform. Analyses for other contaminants may be
				  required by the department.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 8 - GROUNDWATER SOURCES › Section R. 325.10832 - Abandoned wells

Current through Vol. 24-12, July 15, 2024
Rule 832. An abandoned well shall be properly filled and
					 sealed to prevent it from becoming a hazard or serving as a channel for
					 contamination of the groundwater or the escape of subterranean
					 gas.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 9 - SURFACE WATER SOURCES › Section R. 325.10901 - Purpose

Current through Vol. 24-12, July 15, 2024
Rule 901. The purpose of this part is to establish certain
					 requirements for the location and use of raw water intakes in surface water
					 sources to assure a continuously adequate quantity of the best quality raw
					 water available for treatment and distribution to the public.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 9 - SURFACE WATER SOURCES › Section R. 325.10902 - Applicability; approval of deviations from minimum standards and requirements

Current through Vol. 24-12, July 15, 2024
Rule 902.
(1) This
				  part applies to public water supplies utilizing surface water sources. This
				  part sets minimum standards and requirements to be met to receive permits or
				  approvals from the department for waterworks systems or portions of waterworks
				  systems. For purpose of this part, a supplier of a proposed public water supply
				  is considered a public water supply.
(2) Deviations from the minimum standards and
				  requirements of this part may be approved by the department if a public water
				  supply demonstrates that a deviation will not adversely affect the public
				  health. Deviations from this part shall be by permit condition for type I and
				  type II public water supplies, and in writing by the department for type III
				  public water supplies.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 9 - SURFACE WATER SOURCES › Section R. 325.10904 - Retroactivity of rules

Current through Vol. 24-12, July 15, 2024
Rule 904. This part is not retroactive for intakes in
					 surface water sources constructed before January 12, 1978, unless the
					 department determines that continued use of the intake or surface water source
					 poses a health hazard.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 9 - SURFACE WATER SOURCES › Section R. 325.10905 - Assessment of proposed surface water source

Current through Vol. 24-12, July 15, 2024
Rule 905.
(1) An
				  assessment of a proposed surface water source shall be performed by the public
				  water supply. The scope or need for the assessment shall be established in
				  advance by the department after consultation with the owner.
(2) All of the following shall be determined
				  for each alternate location of a surface water intake:
(a) The normal water quality.
(b) Any significant variations in water
				  quality.
(c) Any existing or
				  potential hazards to public health.
(d) The suitability of the water for
				  treatment.
(e) The availability of
				  an adequate and dependable source.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 9 - SURFACE WATER SOURCES › Section R. 325.10906 - Intake from surface water source; design capacity

Current through Vol. 24-12, July 15, 2024
Rule 906. An intake from a surface water source shall be
					 designed to withdraw raw water in no greater quantity than the available yield
					 at the 100-year drought elevation or flow.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 9 - SURFACE WATER SOURCES › Section R. 325.10907 - Intake inlet and pipeline

Current through Vol. 24-12, July 15, 2024
Rule 907.
(1) The
				  intake inlet shall be submerged so that hazards of the source waters, including
				  physical hazards, icing hazards, and shipping hazards are minimized.
(2) Approval of the intake inlet
				  configuration and construction materials shall be based on protection of the
				  structure and control of the inlet velocity.
(3) The intake pipeline shall be constructed
				  to reasonably protect against physical hazards associated with the surface
				  water source.
Michigan Administrative Code › Department - Environmental Quality › Drinking Water And Municipal Assistance Division › Supplying Water to the Public › Part 9 - SURFACE WATER SOURCES › Section R. 325.10908 - Approval of intake materials

Current through Vol. 24-12, July 15, 2024
Rule 908. Classes and types of materials used for intake
					 pipelines, joints, and intake inlets shall be as approved by the
					 department.