1 / 11

Michael Papay, REHS

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

ion
Download Presentation

Michael Papay, REHS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Michael Papay, REHS Lee County Environmental Health Private Wells Septic Systems (919) 718-4641

  2. Private Water Supply Wells

  3. Types of Wells (in Lee County) • Dug • Bored • Drilled

  4. 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

  5. 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

  6. 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

  7. Lee County Private Water Supply Well Program • Permitting & Inspection • New • Repair • Sampling • New Wells • Existing Wells

  8. Sampling • New Well Standard Kit • Microbiological • Inorganic • Nitrates/Nitrites • Individual Sample Types • Microbiological • Inorganic • Nitrates/Nitrites • Pesticides • Petroleum • VOCs • Extractables

  9. Microbiological • Coliform • Indicate the well is contaminated • If these are present then nastier microbes might be present • Fecal Coliform • From animal waste/poo

  10. 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

  11. 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)

More Related