Drinking Water Field Operations Branch District 21
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Important Dates and Reminders
All Water Systems
- Annual Nitrate (as N) DUE by December 31*
- Consumer Confidence Report (CCR) - Distribute by July 1
- Electronic Annual Report (eAR) DUE by April 1
- Lead and Copper test schedules can be found in the quick link below. If your system received a citation for a monitoring violation, follow the directions for the revised sample schedule in the citation – DO NOT FOLLOW the sample schedule in the quick link below. Contact us if you have any questions.
- Quarterly Compliance Order Requirements due by April 10th, July 10th, October 10th, and January 10th
Treated Water Systems
- Disinfection By-Product test schedules can be found in the quick link below. Contact us if you are unsure of your sampling schedule.
- Second Round LT2 Monitoring Begins for Surface Water Systems - Contact Us for when you start
*Some systems may be on a more frequent schedule
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