ENVIRONMENTAL SERVICES,
DEPARTMENT OF
Drinking Water Programs (Env-Dw)
Subtitle Env-Dw was established pursuant to a rules reorganization plan approved by the Director of the
Office of Legislative Services on September 7, 2005.
NOTE:
Rules filed under subtitle Env-Dw were originally numbered
and filed under subtitle Env-Ws for the Division of Water. Please see the filing history for the
Division of Water under subtitle Env-Ws for prior filings relative
to drinking water programs.
#8702* Readopt w/amd Env-Dw 1100 (formerly Env-C
510-522) Drinking Water State Revolving Loan Fund Program eff 8-24-06
#8747* Adopt, Readopt
w/Amend Env-Dw 901 (formerly Env-Ws 420) Groundwater Reclassification Rules
(eff 10-28-06)
#8998* Readopt w/Amend Env-Dw 303 (formerly
Env-Ws 389) Groundwater Sources of Bottled Water (eff 9-29-07)
#9007* Adopt, Readopt
w/Amend Env-Dw 301 (formerly Env-Ws 378) Small Production Wells for Small
Community Water Systems (eff 10-19-07)
#9008* Adopt, Readopt
w/Amend Env-Dw 302 (formerly Env-Ws 379) Large Production Wells for Community
Water Systems (eff 10-19-07)
#9107* Readopt w/Amend Env-Dw 601 (formerly
Env-Ws 363) Capacity Assurance for Public Water Systems (eff 3-23-08)
#9108* Readopt w/Amend Env-Dw 602 (formerly
Env-Ws 371) Capacity Assurance for Proposed Public Water Systems (eff 3-23-08)
#9410* Readopt w/Amend Env-Dw 502 (formerly
Env-Ws 367) Certification of Water Works Operators (eff 3-12-09)
#9411* Readopt w/Amend Env-Dw 501 (formerly
Env-Ws 303.03) Permit to Operate for Public Water Systems (eff 3-12-09)
#9490* Readopt w/Amend Env-Dw 1002 (formerly
Env-Ws 394) Water Supply Land Protection Grant Program (eff 6-23-09)
#9572* INTERIM RULE – Adopt Env-Dw 1200 Privately
Owned Water Redistribution Systems (eff 10-21-09) EXPIRES: 4-19-10
#9577* Adopt Env-Dw 304 Emergency Bulk Water Supply
for Public Water Systems (eff 10-23-09)
#9600* Adopt Env-Dw 717 Groundwater Monitoring
and Treatment (eff 11-21-09)
#9619* Adopt Env-Dw 715 Disinfection Residuals, Byproducts,
and Byproduct Precursors (eff 1-1-10)
#9620* Adopt Env-Dw 716 Filtration, Disinfection, and
Waste Recycling (eff 1-1-10)
#9659* Amend Env-Dw 502.21(d) Certified
Operators; Responsibilities of Owners of Privately Owned Redistribution Systems
(eff 2-24-10)
#9660* Readopt, Readopt
w/Amend Env-Dw 1200 Privately Owned Water Redistribution Systems (eff 2-24-10)
#9699* Adopt, Readopt
w/Amend Env-Dw 701-706 (formerly Env-Ws 310 various and 312-316) Public Water
Systems: Drinking Water Quality Standards (eff 5-1-10)
#9700* Readopt w/Amend Env-Dw 707-713 (formerly
Env-Ws 310.02, 321, 324-327, 329, & 330) Public Water Systems: Laboratory
Analytical Methods, Monitoring, and Compliance (eff
5-1-10)
#9701* Readopt w/Amend Env-Dw 719 (formerly
Env-Ws 322) Public Water Systems: Reporting Monitoring Data. (eff 5-1-10)
#9730* Readopt w/Amend Env-Dw 800 (formerly
Env-Ws 351, 352, and 354-359) Public Notification for Public Water Systems (eff
6-30-10)
#9758* Amend, Readopt
w/Amend Env-Dw 717.20 intro., (n), & (s), 717.21, & 1201.01 Amendments
Relating to Proposed Env-Dw 720 Inspections; Significant Deficiencies (eff 7-30-10)
#9760* Adopt, Readopt
w/Amend Env-Dw 720 (formerly Env-Ws 306 & 303.05) Inspections: Significant
Deficiencies (eff 7-30-10)
#9859* Adopt Env-Dw 714 (formerly Env-Ws 381)
Control of Lead and Copper (eff 2-8-11)
#9910* Adopt, Amend, Readopt
w/Amend Env-Dw 502.03 (f), (x), 502.08, 502.23-502.25 Amendments to
Certification of Water Works Operators Rule (eff 4-19-11)
#9932* Amend, Readopt
w/amend Env-Dw 1002 various sections and paragraphs (eff5-27-11)
#10465* Readopt w/Amend Env-Dw
503-504 (formerly Env-Ws 360-361) Public Water System General Operation and
Maintenance Requirements (eff 12-2-13)
#10602* Adopt, Readopt
w/Amend Env-Dw 902 (formerly Env-Ws 386) Protecting
the Purity of Surface Water Sources of Drinking Water (eff 5-20-14)
#10606* Adopt, Readopt, Readopt
w/Amend Env-Dw 100 (formerly Env-Ws 301-303 various) Public
Water Systems: Purpose and Applicability; Use of Federal Terms; Special
Provisions For Political Subdivisions; Definitions
(eff 6-1-14) DO NOT EXPIRE
#10607* Adopt, Readopt
w/Amend Env-Dw 200 (formerly Env-Wq 301.04) Public
Water Systems: Rule Waivers; Confidential Business Information; Hearing
Procedures (eff 6-1-14) DO NOT EXPIRE
#10608* Adopt, Readopt
w/Amend Env-Dw 401 (formerly Env-Ws 303.04 &
303.06) Public Water System Classification; Well Siting Requirements; Hydrogeologic
and Engineering Studies (eff 6-1-14)
#10609* Readopt w/Amend Env-Dw
402 (formerly Env-Ws 370 & 344.01) General Design Standards for Public
Water Systems (eff 6-1-14)
#10610* Readopt w/Amend Env-Dw 403 (formerly
Env-Ws 305) Public Water Systems:
Coatings, Additives and Lead Prohibition (eff 6-1-14)
#10611* Readopt w/Amend Env-Dw
404 (formerly Env-Ws 374) Design Standards for Large Public Water Systems (eff
6-1-14)
#10612* Readopt w/Amend Env-Dw
405 (formerly Env-Ws 372) Design Standards for Small Community Public Water
Systems (eff 6-1-14)
#10613* Readopt w/Amend Env-Dw
406 (formerly Env-Ws 373) Design Standards for Non-Community Public Water
Systems (eff 6-1-14)
#10614* Readopt w/Amend Env-Dw
407 (formerly Env-Ws 307) Standards Adopted by Reference (eff 6-1-14)
#10615* Readopt w/Amend Env-Dw
505 (formerly) Env-Ws 364) Public Water Systems: Backflow Prevention (eff
6-1-14)
#10616* Readopt w/Amend Env-Dw
1001 Grants for Surface Water Treatment, Regional Water Systems, and
Groundwater Investigations (eff 6-1-14)
#10617* Adopt, Amend, Readopt
w/Amend Env-Dw 701.01 intro. & (j),
701.04-701.05, 718.01, 721, 722 Public Water Systems: Federal Definitions,
Recordkeeping, Exemptions, Best Available Technology (BAT) (eff 6-1-14)
#10618* Readopt w/Amend Env-Dw
723 (formerly Env-Ws 308) Public Water Systems: Use of Non-Central Treatment
(eff 6-1-14)
#10749* Readopt w/Amend Env-Dw
901 Groundwater Reclassification (eff 12-19-14)
#10770* Adopt, Readopt
w/Amend Env-Dw 103.43, 103.51 Definitions Related to
Revised Total Coliform Rule for Public Water Systems (eff 2-1-15) DO NOT EXPIRE
#10771* Adopt, Amend, Repeal, Readopt
w/Amend Env-Dw 506; 701-708 & 710-713 (various);
709; 720; 801, 804, & 811 (various); 802 - Public Water Systems: Revised
Total Coliform Rule and Other Updates (eff 2-1-15)
#10772* Readopt w/Amend Env-Dw
1100 Drinking Water State Revolving Fund Program (eff 1-24-15)
#11059* Readopt w/Amend Env-Dw
303 Groundwater Sources of Bottled Water (eff 4-1-16)
#11060* Adopt Env-Dw 301 Sources
of Water: Definitions (eff 4-1-16)
#11061* Readopt w/Amend Env-Dw
302 Production Wells for Large Community Water Systems (eff
4-1-16)
#11062* Readopt w/Amend Env-Dw
305 (formerly Env-Dw 301) Small Production Wells for
Small Community Water Systems (eff 4-1-16)
#11143* Readopt w/Amend Env-Dw
600 Capacity Assurance for Certain Public Water Systems (eff 7-26-16)
#12180* Adopt Env-Dw
103.41 Public Drinking Water Rules: Definition of "Owner or Operator"
(eff 5-23-17) DO NOT EXPIRE
#12181* Adopt, Readopt
w/Amend Env-Dw 403.02-403.03 & 714 Control of
Lead and Copper; Public Drinking Water Primacy Amendments (eff 5-23-17)
#12214* Readopt w/Amend Env-Dw
501 Permit to Operate for Public Water Systems (eff 6-20-17)
#12363* Adopt, Readopt
w/Amend Env-Dw 502 Certification of Water Works
Operators (eff 8-19-17)
#12420* Amend, Readopt
w/Amend Env-Dw 701.05, 709.06, 709.07, 709.09,
720.04, 720.15, and 811.21(c) & (d) Revised Total Coliform Rule Amendments;
Consumer Confidence Report Amendments Regarding Notices for Lead (eff 11-18-17)
#12441* Adopt, Readopt, Readopt
w/Amend Env-Dw 1002 Water Supply Land Protection
Grant Program (eff 1-1-18)
#12444* Readopt w/Amend Env-Dw
304 Emergency Bulk Water Supply for Public Water Systems (eff 1-1-18)
#12525* Readopt, Readopt
w/Amend Env-Dw 717 Groundwater Monitoring and
Treatment (eff 6-1-18)
Effective date changed from 7-1-18.
#12532* Readopt w/Amend Env-Dw
715 Public Water Systems: Disinfection Residuals, Byproducts, and Byproduct
Precursors (eff 6-1-18)
#12533* Readopt w/Amend Env-Dw
716 Public Water Systems: Filtration, Disinfection, and Waste Recycling (eff
6-1-18)
#12580* Adopt Env-Dw
101.04 Date of Incorporated Federal Regulations (eff 7-21-18) DO NOT EXPIRE
#12582* Readopt, Readopt
w/Amend Env-Dw 1200 Privately Owned Redistribution
Systems
(eff 7-24-18)
#12664* Readopt, Readopt
w/Amend Env-Dw 701 Public Water Systems: Purpose and
Applicability; Units of Measure; Definitions (eff 1-1-19)
#12665* Readopt, Readopt
w/Amend Env-Dw 702-706 Drinking Water Quality Standards
for Public Water Systems (eff 1-1-19)
#12666* Readopt, Readopt
w/Amend Env-Dw 707 Public Water Systems: General
Monitoring Requirements, Laboratory Analytical Methods (eff 1-1-19)
#12667* Readopt, Readopt
w/Amend Env-Dw 708 Public Water Systems: Sampling
Schedules
(eff 1-1-19)
#12668* Adopt, Readopt, Readopt
w/Amend Env-Dw 710-713 Public Water Systems: Monitoring
and Compliance Requirements (eff 1-1-19)
#12669* Readopt w/Amend Env-Dw
718-719 Public Water Systems: Recordkeeping and Reporting (eff 1-1-19)
#12675* Readopt/Readopt w/Amend Env-Dw 800 Public Notification by Public Water Systems (eff
1-1-19)
#12819* Readopt w/Amend Env-Dw
703, 710 various sections Amendments to Drinking Water Quality Standards and
Monitoring Requirements for Radionuclide Contaminants (eff 6-28-19)
#12820* Readopt w/Amend Env-Dw
722 Public Water Systems: Best Available Technology and Treatment Techniques
(eff 6-28-19)
#12838* Adopt, Amend, Readopt
w/Amend Env-Dw 700 and 800 various sections &
paragraphs Water Quality Standards, Monitoring, Compliance, Reporting, and
Public Notification for Certain Per- and Polyfluoroalkyl Substances (eff
9-30-19)
#12903 Adopt Env-Dw
1300 Administrative Procedures for Grants and Loans from the Drinking Water and
Groundwater Trust Fund (eff 10-23-19)
#13044* Readopt w/Amend Env-Dw
704.02 MCLs and MCLGs for Arsenic (eff 5-28-20)
#13160* Readopt w/Amend Env-Dw
1100 Drinking Water State Revolving Loan Fund Program (eff 1-20-21)
#13164* Adopt Env-Dw 1400
Per and Polyfluoroalkyl Substances (PFAS) Remediation Loan Fund Program (eff
1-26-21)
#13286* Readopt w/Amend Env-Dw
902 Protecting the Purity of Surface Water Sources of Drinking Water (eff
10-26-21)
#13289 INTERIM RULE - Adopt/Readopt w/Amend Env-Dw 1400 (various) Per and Polyfluoroalkyl Substances (PFAS)
Remediation Grant and Loan Fund Program (eff 10-30-21) EXPIRES: 4-28-22
#13372* Readopt Env-Dw
1400 Per and Polyfluoroalkyl Substances (PFAS) Remediation Grant and Loan
Fund Programs for Certain Public Water
Systems (eff 4-21-22)
#14006* Readopt w/Amend Env-Dw
503 and 504 Public Water System General Operational Requirements and
Maintenance Requirements (eff 6-25-24) EXPIRES: 6-25-34
#14119* Readopt w/Amend Env-Dw
723 Non-Central Treatment (eff 11-23-24) EXPIRES: 11-23-34
#14120* Readopt w/Amend Env-Dw
505 Backflow Prevention (eff 11-23-24) EXPIRES: 11-23-34
#14121* Readopt w/Amend Env-Dw
1001 Grants for Surface Water Treatment, Regional Water Systems, and
Groundwater Investigations (eff 11-23-24) EXPIRES: 11-23-34
#14158* Readopt w/Amend Env-Dw
400 Public Water System Classification and Design (eff 12-25-24) EXPIRES: 12-25-34
#14201* Adopt Env-Dw 1500
Per and Polyfluoroalkyl Substances (PFAS) Removal Rebate Program for Private
Wells (eff 2-26-25) EXPIRES: 2-26-35
#14296* Readopt w/Amend Env-Dw
901 Groundwater Reclassification (eff 6-27-25) EXPIRES: 6-27-35
#14344* EXPEDITED REVISIONS TO FORMS - Amend Env-Dw 504.02 Application
for Water Works Operator Certification (eff 8-22-25) EXPIRES: 8-22-35
#14342* Readopt
w/Amendment Env-Dw 506 Seasonal Public Water Systems
(eff 8-21-25) EXPIRES: 8-21-35
#14343* Readopt
w/Amendment Env-Dw 709 Monitoring for Microbiological
Contaminants (eff 8-22-25) EXPIRES:
8-22-35
#14427* Readopt
w/Amendment Env-Dw 720 Inspections; Significant
Deficiencies; Assessments (eff 11-21-25) EXPIRES: 11-21-35
#14428* Readopt
w/Amendment Env-Dw 803 Notifications for Fluoride,
Cryptosporidium, Unregulated Contaminants, and Significant Deficiencies (eff
11-21-25) EXPIRES: 11-21-35