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Michael Papay, REHS. Lee County Environmental Health Private Wells Septic Systems (919) 718-4641. Private Water Supply Wells . Types of Wells (in Lee County). Dug Bored Drilled. Dug Well. Literally “hand dug” Mineralogy from the soil Considered unsafe for drinking water

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michael papay rehs

Michael Papay, REHS

Lee County Environmental Health

Private Wells

Septic Systems

(919) 718-4641

dug well
Dug Well
  • Literally “hand dug”
  • Mineralogy from the soil
  • Considered unsafe for drinking water
    • Not protected from surface water intrusion
    • No casing
    • Rock-lined or un-lined walls
    • Water source very shallow (near ground surface)
    • Potential to transmit contaminants deeper
bored well
Bored Well
  • 20- to 24-inches wide
  • Shallow, max 90 ft. (generally 35-ish)
  • Concrete casing / Tile casing (grout?)
  • Mineralogy from soil (& weathered rock)
  • Often coliform + (= unsafe)
    • Water source near ground surface
    • Root intrusion between casing sections
    • Potential to transmit contaminants deeper
drilled well
Drilled Well
  • Penetrates consolidated rock
  • Deep (100 – 400 feet, or more)
  • 6-inch casing (steel or PVC)
  • Mineralogy from the rock that holds the water
lee county private water supply well program
Lee County Private Water Supply Well Program
  • Permitting & Inspection
    • New
    • Repair
  • Sampling
    • New Wells
    • Existing Wells
sampling
Sampling
  • New Well Standard Kit
    • Microbiological
    • Inorganic
    • Nitrates/Nitrites
  • Individual Sample Types
    • Microbiological
    • Inorganic
    • Nitrates/Nitrites
    • Pesticides
    • Petroleum
      • VOCs
      • Extractables
microbiological
Microbiological
  • Coliform
    • Indicate the well is contaminated
    • If these are present then nastier microbes might be present
  • Fecal Coliform
    • From animal waste/poo
inorganic analysis
Inorganic Analysis
  • Arsenic
  • Barium
  • Cadmium
  • Calcium
  • Chloride
  • Chromium
  • Copper
  • Fluoride
  • Iron
  • Lead
  • Magnesium
  • Manganese
  • Mercury
  • Nitrate/Nitrite
  • pH
  • Selenium
  • Silver
  • Sodium
  • Sulfate
  • Total Alkalinity
  • Total Hardness
  • Zinc
laws and rules for private water supply wells
Laws and Rules for Private Water Supply Wells
  • 40 CFR 141.2 (Definitions)
  • G.S. 87 Article 7 (N.C. Well Construction Act)
  • G.S. 130A Article 10 (N.C. Drinking Water Act)
  • 15A NCAC 02C .0100 (Well Constr. Standards)
  • 15A NCAC 02C .0300 (Permitting & Inspection)
  • 15A NCAC 18C .0100 (Protection of Public Water Supplies)
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