1. Lead and Copper Rule (LCR)
Overview and Requirements

2. LCR – The Basics Lead Action Level (AL)
O.015 mg/L or 15 parts per billion (ppb)
Based on 90th percentile of samples taken
Exceeding the AL is not a violation of the LCR
Not performing required follow-up actions is a violation of the LCR
Sample sites for community water systems
Locations where lead is most likely to be present

3. LCR – The Basics Number of Sample Sites Based on Population
System Size
(# People Served)
# of Sites
(Standard Monitoring)
(Reduced Monitoring)
>100,000
100 50
10,001 to 100,000 60 30
3,301 to 10,000 40 20
501 to 3,300 10
101 to 500 5
<= 100

4. LCR – The Basics Sampling frequency based on monitoring results
Initial Monitoring – 2 six months periods
January – June and July – December
Annual (July – September)
If Lead Action Level (AL) not exceeded during Initial Monitoring
Triannual (Every 3 Years)
If Lead AL not exceeded during 3 consecutive years of annual monitoring
If at any time the lead AL is exceeded, the system returns to Initial Monitoring

5. LCR Data Summary
28 public water systems exceeded the lead AL
4 have returned to compliance
Remainder need to complete additional monitoring and follow up
4 Medium systems (3,301 – 50,000 pop.)
24 Small systems (< 3,300 pop.)

7. Requirements when Lead AL is Exceeded
1. Public Education
Within 60 days
Provide public education material to each customer
Must contain mandatory EPA language
Includes instructions on how to reduce lead exposure from drinking water
DHEC has prepared a new public education fill-in-the-blank template

8. Requirements when Lead AL is Exceeded
2. Water Quality Parameters (WQPs)
Within 30 days
2 tap samples from each WQP sample site
2 samples from each entry point to the distribution system
Number of WQP sites based on population

9. Number of WQP Sites System Size # Of Sites For (# People Served) WQPs
>100,
10,001 to 100,
3,301 to 10,
501 to 3,
101 to
<=

10. Required Water Quality ParameterspH
Alkalinity
Orthophosphate (if added)
Silica (if added)
Calcium
Conductivity
Water Temperature

11. Requirements when Lead AL is Exceeded
3. Source Water Monitoring
Within 6 months
One sample at every entry point to the distribution system
Bottles will be provided by the DHEC contract lab for sample collection

12. Requirements when Lead AL is Exceeded
4. Optimum Corrosion Control Treatment (OCCT)
Within 6 months
Complete OCCT Desktop Evaluation
DHEC Form 2134
Recommend OCCT Based on Desktop Evaluation
5. Notification of results
Must provide individual result to homeowners

13. LCR Update New EPA Guidance
Do not remove aerators for sample collection
Do not conduct pre-stagnation flushing
Use wide-mouth sample bottles
Water systems should post material inventory on their website (i.e. lead service line locations)
Post LCR sample results on website

14. LCR Update Some Proposed Changes to LCR (NDWAC)
Locate and replace all lead service lines
Conduct additional WQP monitoring
Expand educational outreach
Water systems analyze customer samples upon request
Separate copper requirements from those for lead

15. Proper Sample Collection
Do:
Use faucet that is routinely used
Use cold water faucet only
Ensure there has been no water usage for at least 6 hours
Collect first flush sample
Do not:
Use a faucet downstream of a home treatment unit
Flush systems prior to stagnation period
Collect a sample from an outside faucet
Remove the aerator prior to sample collection

16. Contact Information
Doug Kinard
SCDHEC - Bureau of Water
2600 Bull Street
Columbia, SC 29201
Phone (803)