[IMPORTANT: When reading the RANDLEMAN WATERSHED RULES, make sure you are reading the CURRENT 2020 VERSION. You will find the updates info in the “History Note” at the bottom of the statute. See the example shown in the 15A NCAC 02B .0720 image below.]
The Randleman Water Supply Watershed Rules are watershed protection rules codified by the North Carolina State Assembly in 2020 to protect our newest drinking water reservoir, Randleman Lake (Randleman Lake was impounded in the early 2000s and began service as the PTRWA public water system in 2010).
The new 2020 Randleman Water Supply Watershed Rules [15A NCAC 02B .0610, .0611, .0612, .0720, .0721, .0722, .0724] REPLACED the old Randleman Lake Buffer Rules [15A NCAC 02B .0250] and the old Randleman Lake Stormwater Rules [15A NCAC 02B .0721].
New rule 15A NCAC 02B .0720 states, as shown in the screenshot below, that “ALL waters of the Randleman Lake (Deep River) water supply watershed are classified for water supply uses and designated by the North Carolina Environmental Management Commission as a CRITICAL WATER SUPPLY WATERSHED pursuant to G.S. 143-214.5(b)“:
REPEAT: The Randleman Watershed is a Class-IV critical water supply watershed. All of Jamestown is in the Randleman Watershed.
There are specific groundwater and surface water standards that industrial dischargers, landfill operators, agricultural operators, developers and local authorities operating in Jamestown (and along Deep River, Bull Run and their tributaries) are REQUIRED to follow, as defined in 15A NCAC 02B .0216.
There are specific building density and buffer rules that developers, builders and construction companies are required to follow, as defined in 15A NCAC 02B .0724 Randleman Lake Maintenance of Existing Riparian Buffers.
All local governments with jurisdiction in the Randleman Watershed are required to implement local ordinances that meet or exceed the provisions of this Rule. When local ordinances conflict with the state-mandated Randleman Watershed rules, the state rules take precedence.
As stated in 15A NCAC 02b .0216, water quality standards applicable to Class WS-IV Waters include the following limits for surface waters and tributaries that flow to Deep River:
Solids, total dissolved: 500 mg/l
Barium: 1.0 mg/l
Chloride: 250 mg/l
Nickel: 25 µg/L
Nitrate nitrogen: 10.0 mg/l
2,4-D: 70 µg/L
2,4,5-TP (Silvex): 10 µg/L
Sulfates: 250 mg/l
Aldrin: 0.05 ng/1 [HHDN; 1,2,3,4,10,10-hexachloro-1,4,4α,5,8,8α-hexahydro1,4-endo,exo-5,8-dimethanonaphthalene]
Arsenic: 10 µg/L
Benzene: 1.19 µg/L [(6)Annelene, Benzin, benzine, benzol, benzols, benzolene, cyclohexatriene, phenyl hydride, pyrobenzol]
Carbon tetrachloride: 0.254 µg/L [carbon tet, tetrachloromethane, CCI4]
Chlordane: 0.8 µg/L
Chlorinated benzenes: 488 µg/L [Chlorobenzene]
DDT: 0.2 ng/1 [dichloro-diphenyl-trichloroethane; 1,1’-(2,2,2-trichloroethylidene); bis(4-chlorobenzene); 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane]
Dieldrin: 0.05 ng/1 [HEOD]
Dioxin: 0.000005 ng/l [TCDD, polychlorinated dibenzo para dioxins (PCDD), polychlorinated dibenzofurans (PCDF)]
Heptachlor: 0.08 ng/1
Hexachlorobutadiene: 0.44 µg/L [HCBD, HCDB, Perchlorobutadiene, perchloro-1, 3-butadiene, tripen]
Polynuclear aromatic hydrocarbons (total of all PAHs): 2.8 ng/l [Naphthalene, Biphenylene, Fluorene, Acenaphthene, Acenaphthylene, Anthracene, Phenanthrene, Phenalene, Fluoranthene, Tetracene, Benz[a]anthracene, chrysene, trophenylene, pyrene, pentacle, benzopyrene, perylene, corannulene, benzo[ghi]perylene, coronene]
Tetrachloroethane (1,1,2,2): 0.17 µg/L [Acetylene tetrachloride, TeCA]
Tetrachloroethylene (PCE): 0.7 µg/L [Perchloroethylene, PERC, perchlor, perclene]
Trichloroethylene (TCE): 2.5 µg/L
Vinyl Chloride: 0.025 µg/L [VCM, chloroethene, chloroethylene, ethylene monochloride]
MBAS (Methylene-Blue Active Substances): 0.5 mg/l
Chlorinated phenolic compounds: 1.0 µg/L [Includes Chlorophenols, Monochlorophenols, Dichlorophenols,Trichlorophenols, Tetrachlorophenols, Pentachlorophenol]