Rules Governing Public Water Systems - NC

1 Rules Governing Public Water Systems North Carolina Administrative Code Title 15 A Department of Environmental Quality Subchapter 18C - Water Supplies -Sections .0100 through .2200 Public Water Supply Section Last Updated November 1, 2020 NOTES The following document contains the Rules and regulations applicable to Public Water Systems forthe State of North Carolina. Because the State Rules of Governing Public Water Systems hasadopted state laws and federal regulations by reference, copies of these adoptions are printed intothe document after the State Rules . The Public Water supply Rules were recodified into the North Carolina Administrative Code Title15A, Subchapter 18C from Title 10 Chapter 10, Subchapter 10D on April 4, 1990. The originalTitle 10, Chapter 19, Subchapter 10D became effective on JANUARY 1, 1977, and was amended onthe following dates: SEPTEMBER 1, 1979; SEPTEMBER 30, 1980; MARCH 31, 1981; FEBRUARY 27,1982; APRIL 1, 1982; OCTOBER 1, 1982; APRIL 1, 1983; OCTOBER 1, 1983; OCTOBER 1, 1984;OCTOBER 1, 1985; JANUARY 1, 1986; OCTOBER 1, 1986; FEBRUARY 1, 1987; MAY 1, 1987;AUGUST 1, 1987; NOVEMBER 1, 1987; DECEMBER 1, 1987; JUNE 1, 1988; DECEMBER 1, 1988;MARCH 1, 1989; NOVEMBER 1, 1989; JANUARY 1, 1990; and FEBRUARY 1, 1990.

2 The North Carolina Administrative Code Title 15A, Subchapter 18C has been amended on thefollowing dates: JUNE 1, 1990; SEPTEMBER 1, 1990; JANUARY 1, 1991; AUGUST 1, 1991;SEPTEMBER 1, 1991; DECEMBER 1, 1991; JANUARY 1, 1992; FEBRUARY 1, 1992; APRIL 1, 1992;OCTOBER 1, 1992; JULY 1, 1993; JULY 1, 1994; OCTOBER 1, 1999; AUGUST 1, 2000; JANUARY 1,2002; AUGUST 1, 2002, and JANUARY 1, 2003, SEPTEMBER 1, 2004, APRIL 1, 2014, JULY 7, 2014,JULY 1, 2015, AND JULY 1, 2019. As of April 1, 2014: These are technical changes to numerous Rules to correct agency name,address, and viewing of documents. As of July 7, 2014: Amended Rule .0203. As of July 1, 2015: Added Rules .1539. As of November 23, 2015: Many Rules were readopted without change pursuant to on November 23, 2015 (see History Notes for each rule); Rules .

3 121, .1513, .1514, .1517, .1533,and .2103 expired effective December 1, 2015 pursuant to 150B-21 .3A. As of July 1, 2019 the following Rules were re-adopted with changes by the Commission for PublicHealth (see History Notes in each rule); .0102, .0202, .0203, .0305, .0307, .0402, .0403, .0404,.0405, .0406, .0408, .0409, .0503, .0601, .0706, .0707, .0708, .0711, .0713, .0714, .0803, .0904,.0906, .1002, .1003, .1004, .1406, .1507, .1508, .1509, .1511, .1512, .1515, .1516, .1519, .1523,.1524, .1525, .1527, .1528, .1529, .1532, .1535, .1537, .1538, .1804, .2001, .2002, .2005, and .2008 As of July 1, 2019 the following Rule was amended by the Commission for Public Health (seeHistory Note); .0703. As of July 1, 2019 the following Rule was repealed by the Commission for Public health (seeHistory Note).

4 0715. As of April 1, 2020 the following Rule was re-adopted with changed by the Commission for PublicHealth (see History Note); .1305. The Public Water Supply Section website can be found at the following internet document is provided as a courtesy to the Public . Every effort has been made to ensure the accuracy and completeness of the document; however, the Public Water Supply Section does not guarantee the accuracy of this information. Compliance with requirements of the regulations and statutes is the responsibility of the individual Water Systems owners. State regulations can also be viewed on the NC Office of Administrative Hearings website at: Federal regulations can also be viewed at: TABLE OF CONTENTS i 15A NCAC 18C Water SUPPLIES NORTH CAROLINA STATE Rules SECTION.

5 0100 Public Water SUPPLY DEFINITIONS .. 1 .0102 DEFINITIONS .. 1 Definitions .. 86 SECTION .0200 LOCATION OF SOURCES OF Public Water SUPPLIES .. 3 .0201 SURFACE SUPPLIES FOR Public Water Systems .. 3 .0202 SURFACE SUPPLIES FROM CLASSIFIED WATERSHEDS .. 3 .0203 Public WELL Water SUPPLIES .. 3 SECTION .0300 SUBMISSION OF PLANS, SPECIFICATIONS, AND REPORTS .. 6 .0301 APPLICABILITY: PRIOR NOTICE .. 6 .0302 SUBMITTALS .. 6 .0303 SUBMISSIONS REQUIRED BY ENGINEER AND 7 .0304 APPLICATION FOR APPROVAL: BY WHOM MADE .. 7 .0305 APPROVALS NECESSARY BEFORE CONTRACTING OR CONSTRUCTING .. 7 .0306 CHANGES IN ENGINEERING PLANS OR SPECIFICATIONS AFTER APPROVAL .. 8 .0307 ENGINEER S REPORT, Water system MANAGEMENT PLAN AND OTHER PLANS .. 9 .0308 ENGINEERING PLANS AND SPECIFICATIONS.

6 12 .0309 FINAL APPROVAL .. 13 SECTION .0400 Water SUPPLY DESIGN CRITERIA .. 14 .0401 MINIMUM REQUIREMENTS .. 14 .0402 Water SUPPLY WELLS .. 14 .0403 SURFACE Water FACILITIES .. 15 .0404 Water TREATMENT FACILITIES .. 16 .0405 STORAGE OF FINISHED Water .. 17 .0406 DISTRIBUTION Systems .. 18 .0407 ELECTRICAL Systems .. 21 .0408 LEAD FREE CONSTRUCTION .. 21 .0409 SERVICE CONNECTIONS .. 21 SECTION .0500 SUPPLEMENTAL DESIGN CRITERIA .. 23 .0501 PURPOSE .. 23 .0502 DESIGN CRITERIA .. 23 .0503 OTHER DESIGN STANDARDS .. 23 SECTION .0600 RAW SURACE Water FACILITIES .. 24 .0601 IMPOUNDMENTS: PRE-SETTLING RESERVOIRS .. 24 .0602 RAW Water INTAKES .. 24 .0603 INTAKE CONDUITS .. 24 .0604 PUMPS: POWER FACILITIES .. 24 SECTION .0700 SURFACE Water TREATMENT 26.

7 0701 FLASH OR RAPID MIXING FACILITY .. 26 .0702 AIR MIXING .. 26 .0703 MECHANICAL FLOCCULATION .. 26 .0704 BAFFLED MIXING AND FLOCCULATION BASINS .. 26 .0705 CONDUITS: PIPES AND FLUMES: GATES AND VALVES .. 26 .0706 SEDIMENTATION BASINS .. 27 TABLE OF CONTENTS ii .0707 SOLIDS CONTACT OR UP-FLOW UNITS .. 27 .0708 GRAVITY FILTERS .. 27 .0709 PREVENTION OF BACKFLOW AND BACK-SIPHONAGE .. 28 .0710 OTHER Water TREATMENT PLANTS .. 29 .0711 ALTERNATIVE FILTRATION TREATMENT TECHNOLOGIES .. 30 .0712 DIRECT FILTRATION .. 30 .0713 PRESSURE FILTERS .. 31 .0714 PILOT PLANT STUDIES .. 31 SECTION .0800 HYDROPNEUMATIC STORAGE TANKS Rules .. 33 .0801 CAPACITIES: DETERMINING MINIMUM EFFECTIVE VOLUME .. 33 .0802 CAPACITIES: DETERMINING PEAK DEMAND .. 33 .0803 CAPACITIES: DETERMINING TOTAL VOLUME.

8 35 .0804 CAPACITIES: GROUND STORAGE PLUS HYDROPNEUMATIC TANKS .. 35 .0805 CAPACITIES: ELEVATED STORAGE .. 35 SECTION .0900 DISTRIBUTION Systems .. 36 .0901 SIZE OF THE Water MAINS .. 36 .0902 NUMBER OF RESIDENCES ON A Water MAIN .. 36 .0903 DEAD-END Water MAINS .. 36 .0904 PIPE LAYING .. 36 .0905 TESTING NEW Water MAINS .. 37 .0906 RELATION OF Water MAINS TO NON-POTABLE Water LINES .. 37 .0907 VALVES .. 38 SECTION .1000 DISINFECTION OF Water SUPPLY Systems .. 39 .1001 DISINFECTION OF NEW Systems .. 39 .1002 DISINFECTION OF WELLS .. 39 .1003 DISINFECTION OF STORAGE TANKS AND DISTRIBUTION Systems .. 39 .1004 DISINFECTION OF Water TREATMENT FACILITIES .. 39 SECTION .1100 PROTECTION OF UNFILTERED Public Water SUPPLIES .. 41 .1101 WATERSHED AREA .. 41.

9 1102 AUTHORIZED PERSONS WITHIN WATERSHED AREA .. 41 .1103 HUNTING: FISHING: OR HIKING .. 41 .1104 DISPOSAL OF CARCASSES .. 41 .1105 PROHIBITED CONDUCT ON WATERSHED .. 41 .1106 INSPECTION OF WATERSHEDS .. 42 .1107 WATERSHED BOUNDARY SIGNS .. 42 .1108 CONTINUOUS DISINFECTION OF Water SUPPLY .. 42 SECTION .1200 PROTECTION OF FILTERED Water SUPPLIES .. 43 .1201 RECREATIONAL ACTIVITIES .. 43 .1202 PROTECTION OF Water 43 .1203 MAINTENANCE OF 43 .1204 FISHING .. 43 .1207 ANIMALS IN RESERVOIR .. 44 .1208 CONTROLLING THE DRAINAGE OF WASTES .. 44 .1209 UNTREATED DOMESTIC SEWAGE OR INDUSTRIAL WASTES .. 44 .1210 SEWAGE 45 .1212 BURIAL OF CARCASSES .. 45 TABLE OF CONTENTS iii .1213 BURIAL GROUND .. 45 .1214 DISPOSAL OF ANY SUBSTANCE .. 45 SECTION .1300 OPERATION OF Public Water SUPPLIES.

10 47 .1301 GENERAL REQUIREMENTS .. 47 .1302 TESTS, FORMS AND REPORTING .. 47 .1303 FACILITY OVERSIGHT .. 48 .1304 Water system OPERATION AND MAINTENANCE .. 50 .1305 SOURCE Water PROTECTION PLANNING .. 51 SECTION .1400 FLUORIDATION OF Public Water SUPPLIES .. 53 .1401 POLICY .. 53 .1402 FORMAL APPLICATION .. 53 .1404 FEEDING 53 .1405 PROTECTION OF OPERATORS .. 53 .1406 CONTROL OF FLUORIDE PROCESS .. 54 .1407 APPROVAL MAY BE RESCINDED .. 55 SECTION .1500 Water QUALITY STANDARDS .. 56 .1502 MONITORING OF CONSECUTIVE Public Water Systems .. 56 .1505 TURBIDITY SAMPLING AND ANALYSIS .. 56 Turbidity sampling and analytical requirements .. 103 .1506 MAXIMUM CONTAMINANT LEVELS FOR TURBIDITY .. 56 Maximum contaminant levels for turbidity .. 94 .1507 CORROSION CONTROL AND LEAD AND COPPER MONITORING.