Drinking Water Advisory Work Group

1. Drinking Water Advisory Work Group Monitoring Plans Andrew Nidoh July 16, 2019

2. Monitoring Plan Requirements • All monitoring conducted in accordance with Title 30, Texas Administrative Code (30 TAC), §290 Subchapter F. • Source and distribution details, including treatment. • Plant schematic. • Lab Approval Form. • Other info such as PWS ID and effective or revision date.

3. Monitoring Plan Required For: • ALL public water systems (PWS) • If PWS treats surface water (including groundwater under its direct influence), submittal to the TCEQ upon development and revision is required. • Anytime an update occurs, the plan (or just the updated section if plan is current) will be resubmitted to TCEQ. • Outreach over the last year

4. Monitoring Plan Required For: • If PWS treats and/or distributes groundwater or purchased water, a copy of the monitoring plan shall be maintained at each plant and in a central location. • The plan is subject to review during Compliance Inspections and is not required to be submitted to TCEQ, unless requested. **These plans are actually utilized by the TCEQ on a frequent basis, especially during abnormal circumstances.

5. Monitoring Plan: Reminders • Entry point sampling applies to every system. • All sections need to include a sample schedule, sample location(s), method or lab used for analysis, and applicable compliance statements. • Include any and all plant schematics. • Fill out Lab Approval Form for yourPWS. • Include attachments such as RTCR Sample Siting Plan and NAP.

6. Using Drinking Water Watch (DWW) • DWW Menu bar: Water system facilities Sample points & schedules Contact information

7. Using Drinking Water Watch (DWW) Water system facilities: Entry Points (EP) Source ID (G/S/P) Review and determine if the information is correct (i.e. active vs. inactive)

8. Using Drinking Water Watch (DWW) • Sample schedules: Analyte group: what will be sampled. Req’s: how often sampling occurs, such as 1RT/3YR- 1 sample every 3 years

9. Inorganics, Organics and Radionuclide Rules Use Drinking Water Watch to list sample schedules for specific analytes and entry points. • Nitrate • Nitrite • Cyanide • SOC Methods 504, 515, 531 • MIN • MTL • VOC • SOC5 • RAD (or Secondaries group for transient systems)

10. Plant Schematic All monitoring plans must include a schematic for any plant(s), which needs to include: • Chemical additions • Sampling locations • Physical components such as pumps • Water flow, including all sources • Entire water recycling process (if applicable)

11. System Schematic • SW Schematic example:

12. System Schematic • GW Schematic example:

13. Revised Total Coliform Rule • Sample Siting Plan: • List total number of samples required • List address for all routine and possible repeat sample locations

14. Distribution Map Distribution Map: • New requirement under the Revised Total Coliform Rule and must contain: • All coliform routine locations • All storage units in use by the system • All active entry points • Distribution water mains and sizes • Pressure plane boundaries (if > 1)

15. Nitrification Action Plan • If the system has chloraminated water (the water has a total chlorine residual) at any point, a Nitrification Action Plan (NAP) needs to be developed and attached to the system’s overall monitoring plan. • NAP template can be found online to aid water systems in controlling nitrification within their distribution system.

16. Lab Approval Form All systems that use on-site methods to analyze: • Free and total chlorine disinfectant residual • Turbidity and total organic carbon • pH • Temperature • Alkalinity • Chlorine dioxide and daily EP chlorite • Calcium • Phosphate • Ultraviolet light absorbance at 254 nm (UV254)

17. Required Attachment: Lab Approval Form • Must use analysis methods approved by the EPA and the TCEQ. • Forms will be reviewed once received by central office and approved accordingly. • Form available through RG-384 • New form available via request to PDWS@tceq.texas.gov or the Lab Approval Form Coordinator at (512)239-4691

18. What resources are available to help? • Monitoring Plan Coordinator: (512)239-4691 • Email boxes: PWSINVEN@tceq.texas.gov PWSCHEM@tceq.texas.gov PWSLCR@tceq.texas.gov DBP@tceq.texas.gov FMT@tceq.texas.gov

19. Questions Andrew Nidoh Andrew.Nidoh@tceq.texas.gov (512)239-4611

20. Drinking Water Advisory Work Group Sample Siting Plans Lillian Johnson July 16, 2019

21. RTCR Sample Siting Plan (SSP) • SSPs are an attachment to the Monitoring Plan • Find the template on the TCEQ RTCR webpage • If you haven’t submitted an SSP – do it ASAP! • Email SSPs to TCRdata@tceq.texas.gov

22. RTCR Sample Siting Plan Cont. • Keep this document current • Revise as necessary • SSP form is self explanatory but please call if you have questions! • 512-239-5283 – Lillian Johnson

23. SSP Site Locations • List all routine sampling locations plus additional alternate locations • List multiple repeat sampling locations – 5 upstream & 5 downstream • List more locations than are required to prepare for changes