1. Introduction to Private Waters Missouri Department of Health and Senior Services

2. Program Authority 19 CSR 20-3.040 “Environmental Health Standard for the Control of Communicable disease” 19 CSR 20-3.050 “Sanitation and Safety Standards for Lodging Establishments” 19 CSR 20-1.025 “Missouri Food Code” 19 CSR 20-1.040 “Good Manufacturing Practices” 30 CSR 60, 61, and 62: Child care licensing rules

3. Introduction Types of Water Supplies Well Construction Water Samples Disinfection Regulated Facilities

4. Objective/Goals Recognize the different supply types and well types Become familiar with the different tests available through the State Public Health Laboratory Interpret results Make recommendations based on test results

5. Supply Types Public vs. Private

6. Types of Drinking Water Systems

7. Private Used By General Public Do not fit DNR Non-Community criteria Used by general public Regulated by DHSS or LPHA

8. Well Construction

9. Well Construction Types Drilled Driven Spring Bored Dug

10. Below Surface Construction Casing Screening Pump

11. Surface Construction Cross- section view of well at surface

13. Well Certification All private wells drilled after Oct. 1987 Proof of certification must be provided to us for wells regulated by DHSS drilled after Oct 1987. Well drillers are regulated by DNR.

14. What tests can we run? Chemical Bacteriological

15. Bacteriological Water Testing What When Where How

16. When do we take a water sample? Request Result of a disease investigation Routine inspection

17. What Happens When The Results are Unsatisfactory?

18. Disinfection Chlorination Chlorination or Chlorination http://www.youtube.com/watch?v=MZ J6FxK6cwk

19. Methods of Chlorination Shock chlorination Continuous Feed Chlorination

20. Chlorination Use method recognized by DNR for Public Minimum 0.5 ppm free chlorine added Minimum 0.2 ppm chlorine in system 30 minute retention time based on pump capacity Positive feed (not drop feed or erosion)

21. What we do Check surface construction and setback distances Troubleshoot systems Collect water samples (bacterial and chemical) Distribute sample collection bottles Make recommendations based on EPA, DHSS, and DNR regulations and policies

22. Questions?