New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Ws - Division of Water
Chapter Env-Ws 300 - NEW HAMPSHIRE DRINKING WATER RULES
- Part Env-Ws 301 - PURPOSE AND APPLICABILITY
- Part Env-Ws 302 - DEFINITIONS
- Part Env-Ws 303 - INTRODUCTION TO PUBLIC WATER SUPPLY REGULATORY PROGRAM
- Part Env-Ws 304 - RECORDKEEPING RESPONSIBILITY OF SYSTEMS
- Part Env-Ws 305 - COATINGS AND ADDITIVES; LEAD PROHIBITION
- Part Env-Ws 306 - SANITARY SURVEY - (Redesignated as Env-Dw 720)
- Part Env-Ws 307 - STANDARDS ADOPTED BY REFERENCE
- Part Env-Ws 308 - CRITERIA AND PROCEDURES FOR NON-CENTRAL TREATMENT
- Part Env-Ws 309 - RESERVED
- Part Env-Ws 310 - DRINKING WATER QUALITY STANDARDS - Redesignated as Env-Dw 700
- Part Env-Ws 311 - PHYSICAL CHARACTERISTICS - RESERVED
- Part Env-Ws 312 - MAXIMUM CONTAMINANT LEVEL (MCL) AND MAXIMUM CONTAMINANT LEVEL GOAL (MCLG) - RADIONUCLIDES - Redesignated as Env-Dw 700
- Part Env-Ws 313 - MAXIMUM CONTAMINANT LEVEL (MCL) AND MAXIMUM CONTAMINANT LEVEL GOAL (MCLG) - MICROBIOLOGY - Redesignated as Env-Dw 700
- Part Env-Ws 314 - MAXIMUM CONTAMINANT LEVEL (MCL) AND MAXIMUM CONTAMINANT LEVEL GOALS (MCLG) FOR INORGANICS - Redesignated as Env-Dw 700
- Part Env-Ws 315 - MAXIMUM CONTAMINANT LEVEL (MCL) AND MAXIMUM CONTAMINANT LEVEL GOAL (MCLG) FOR REGULATED ORGANICS - Redesignated as Env-Dw 700
- Part Env-Ws 316 - REGULATED SECONDARY MAXIMUM CONTAMINANT LEVELS (SMCLs) - Redesignated as Env-Dw 700
- Part Env-Ws 317 - RESERVED
- Part Env-Ws 318 - UNREGULATED ORGANIC CONTAMINANTS
- Part Env-Ws 319 - REGULATED SECONDARY MAXIMUM CONTAMINANT LEVELS (SMCLs)
- Part Env-Ws 320 MONITORING, REPORTING AND COMPLIANCE DETERMINATION - RESERVED
- Part Env-Ws 321 - GENERAL MONITORING - Redesignated as Env-Dw 700
- Part Env-Ws 322 - REPORTING MONITORING DATA - Redesignated as Env-Dw 700
- Part Env-Ws 323 VULNERABILITY ANALYSIS - RESERVED
- Part Env-Ws 324 - MONITORING FOR RADIONUCLIDES - Redesignated as Env-Dw 700
- Part Env-Ws 325 - BACTERIA MONITORING - Redesignated as Env-Dw 700
- Part Env-Ws 326 - MONITORING FOR INORGANIC CHEMICALS - Redesignated as Env-Dw 700
- Part Env-Ws 327 - MONITORING FOR ORGANICS - Redesignated as Env-Dw 700
- Part Env-Ws 328 UNREGULATED ORGANICS - RESERVED
- Part Env-Ws 329 - MONITORING FOR SECONDARIES - Redesignated as Env-Dw 700
- Part Env-Ws 330 - LABORATORY ANALYTICAL TECHNIQUES - Redesignated as Env-Dw 700
- Part Env-Ws 331 through Env-Ws 339 - RESERVED
- Part Env-Ws 340 - MCL VIOLATION - EVALUATION AND RESPONSE - RESERVED
- Part Env-Ws 341 - VARIANCES AND EXEMPTIONS
- Part Env-Ws 342 - VARIANCES ISSUED BY THE DEPARTMENT
- Part Env-Ws 343 - EXEMPTIONS ISSUED BY THE DEPARTMENT
- Part Env-Ws 344 - MODIFYING WATER QUALITY
- Part Env-Ws 345 - BEST AVAILABLE TECHNOLOGY, TREATMENT TECHNIQUES, OR OTHER MEANS GENERALLY AVAILABLE
- Part Env-Ws 346 - BEST AVAILABLE TREATMENT (BAT) FOR INORGANIC CHEMICALS
- Part Env-Ws 347 - BEST AVAILABLE TREATMENT - ORGANICS
- Part Env-Ws 348 through Env-Ws 350 - RESERVED
- Part Env-Ws 351 - GENERAL VIOLATION NOTIFICATION - (Redesignated as Env-Dw 800)
- Part Env-Ws 352 - RULES PERTAINING TO THE CONSUMER CONFIDENCE REPORT -(Redesignated as Env-Dw 800)
- Part Env-Ws 353 - RESERVED
- Part Env-Ws 354 - MANDATORY HEALTH EFFECTS LANGUAGE - (Redesignated as Env-Dw 800)
- Part Env-Ws 355 - SCHEDULE, VERIFICATION OF NOTICE ISSUANCE, AND NOTICE LANGUAGE FOR MICROBIOLOGY, TURBIDITY, AND RADIOLOGICAL - (Redesignated as Env-Dw 800)
- Part Env-Ws 356 - PUBLIC NOTICE FOR INORGANICS - (Redesignated as Env-Dw 800)
- Part Env-Ws 357 - PUBLIC NOTICE FOR ORGANICS - (Redesignated as Env-Dw 800)
- Part Env-Ws 358 - PUBLIC NOTICE UNREGULATED CONTAMINANT MONITORING RULE - (Redesignated as Env-Dw 800)
- Part Env-Ws 359 - NOTIFICATION FOR SECONDARY MCLs - (Redesignated as Env-Dw 800)
- Part Env-Ws 360 - GENERAL OPERATIONAL REQUIREMENTS OF A PUBLIC WATER SYSTEM
- Part Env-Ws 361 - MAINTENANCE RESPONSIBILITIES
- Part Env-Ws 362 - RESERVED
- Part Env-Ws 363 - CAPACITY ASSURANCE FOR EXISTING PUBLIC WATER SYSTEMS - Redesignated as Env-Dw 601
- Part Env-Ws 364 - BACKFLOW PREVENTION
- Part Env-Ws 365 - RESERVED
- Appendix - APPENDIX
- Part Env-Ws 366 - RESERVED
- Part Env-Ws 367 - CERTIFICATION OF WATER WORKS OPERATORS - (Redesignated as Env-Dw 502)
- Part Env-Ws 368-369 - RESERVED
- Part Env-Ws 370 - GENERAL DESIGN STANDARDS: SYSTEMS SERVING 1,000 OR MORE PEOPLE
- Part Env-Ws 371 - CAPACITY ASSURANCE FOR PROPOSED PUBLIC WATER SYSTEMS - Redesignated as Env-Dw 602
- Part Env-Ws 372 - DESIGN STANDARDS FOR SMALL COMMUNITY WATER SYSTEMS
- Part Env-Ws 373 - DESIGN STANDARDS FOR NON-COMMUNITY WATER SYSTEMS
- Part Env-Ws 374 - DESIGN STANDARDS FOR LARGE PUBLIC WATER SYSTEMS
- Part Env-Ws 375 - RESERVED
- Part Env-Ws 376 - RESERVED
- Part Env-Ws 377 - RESERVED
- Part Env-Ws 378 - SITE SELECTION OF SMALL PRODUCTION WELLS FOR COMMUNITY WATER SYSTEMS - Redesignated as Env-Dw 300
- Part Env-Ws 379 - SITE SELECTION OF LARGE PRODUCTION WELLS FOR COMMUNITY WATER SYSTEMS
- Part Env-Ws 380 - FILTRATION, DISINFECTION, TREATMENT PLANT AND WASTE RECYCLING
- Part Env-Ws 381 - CORROSION CONTROL TREATMENT, LEAD AND COPPER ACTION LEVELS
- Part Env-Ws 382 - DISINFECTANT/DISINFECTION BYPRODUCTS RULE
- Part Env-Ws 383 - RESERVED
- Part Env-Ws 384 - UNDERGROUND INJECTION CONTROL REQUIREMENTS
- Part Env-Ws 385 - PROTECTION OF SURFACE WATER SOURCES USED FOR DRINKING WATER SUPPLIES-RESERVED
- Part Env-Ws 386 - RULES FOR PROTECTING THE PURITY OF REGULATED WATERSHEDS
- Part Env-Ws 387 - MINOR GROUNDWATER WITHDRAWAL
- Part Env-Ws 388 - MAJOR GROUNDWATER WITHDRAWAL R - Redesignated to Env-Wq 403
- Part Env-Ws 389 - GROUNDWATER SOURCES OF BOTTLED WATER - Redesignated to Env-Dw 303
- Part Env-Ws 390 - WATER CONSERVATION RULES - Redesignated as Env-Wq 2101
- Part Env-Ws 391 through Env-Ws 392 - RESERVED
- Part Env-Ws 393 - PUBLIC WATER SUPPLY GRANTS - Redesignated to Env-Dw 1001
- Part Env-Ws 394 - WATER SUPPLY LAND GRANT PROGRAM - Redesignated to Env-Dw 1002
Current through Register No. 13, March 27, 2025
Statutory Authority: RSA 485 and 332-E:3
REVISION NOTE :
Document #4850, eff 6-25-90, made extensive changes to the wording, format and structure of Chapter Env-Ws 300 and rules in Chapter Ws 300, now redesignated as rules in Chatper Env-Ws 300. Document #4850 superseded all prior filings for the sections in the fromer Chapter Ws 300 and Chapter Env-Ws 300, except for Parts Env-Ws 378 through Env-Ws 399 which were not included in Document #4850. The prior filings for former Ws 300 and Env-Ws 300 included the following documents:
| #1918, eff 1-13-82 | #2973, eff 1-28-85 |
| #2071, eff 7-1-82 | #3057, eff 7-16-85 |
| #2244, eff 12-31-82 | #4040, eff 4-16-86 |
| #2317, eff 3-10-83 | #4053, eff 5-14-86 |
| #2318, eff 3-10-83 | #4126, eff 8-29-86 |
| #2471, eff 9-7-83 | #4149, eff 10-15-86 |
| #2525, eff 10-11-83 | #4273, eff 6-29-87 |
| #2610, eff 2-1-84 | #4419, eff 5-24-88 |
| #2842, eff 9-5-84 | #4483, eff 9-2-88 |
REVISION NOTE :
Document #6521, eff 6-4-97, made various readoptions to the wording, format and structure of Chapter Env-Ws 300. Document #6521 superseded all prior filings for the sections in this chapter. The prior filings since Document #4850 for former Env-Ws 300 included the following documents:
| #4875, eff 7-23-90 | #5541, eff 12-24-92 |
| #4984, eff 11-20-90 | #5636, eff 6-14-93 |
| #5098, eff 3-18-91 | #5872, eff 7-19-94 |
| #5287, eff 11-27-91 | #5873, eff 7-26-94 |
| #5422, eff 6-22-92 |
REVISION NOTE :
Document #7735, effective 8-2-02, made several changes to Chapter Env-Ws 300, including adoption of a new Part Env-Ws 382 relative to Disinfectant/Disinfection Byproducts. Document #7735 moved and renumbered, but did not readopt, the former Env-Ws 382 as Env-Ws 393. The effective dates of Part Env-Ws 393 therefore remain unchanged by Document #7735.
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