Monitoring Plans (Developing a Monitoring Plan for a Public Water System) Presented by Debra Cerda 512/239-6045 TCEQ Public Drinking Water Section at 2005 TCEQ Trade Fair Austin Monitoring Plan? < It’s the law? < More bureaucratic paper work? < Make money? < Document regulatory sample sites? < Standard Operating Procedures? < Quality Texas’ water and PWSs? < Public Health Protection? Monitoring Plan < Drinking Water Standards and CCR < PWS compliance with standards and rules and regulations < TCEQ regulator Í Texas PWS inventory Í Texas water quality < Some Tools Í Monitoring Plans Í Water Utilities Database Monitoring Plans 290.122(a) Applicability C, NTNC < Deadline to prepare and SUBMIT: < 1/1/01 SW/GUI >10,000 people < 1/1/03 SW/GUI #10,000 < 1/1/04 GW $10,000 people < Deadline to PREPARE only < 1/1/04 GW <10,000 folks What goes in them? Lots! < What chemicals you’re sampling, < Where samples will be collected, < When samples will be collected, < How the system will calculate compliance What goes in them? Lots! < Follow the TCEQ Outline Í In: Regulatory Guidance 384 Í How to Develop a Monitoring Plan for a Public Water System • Call 512-239-0028 to order a copy • Or download PDF off TCEQ web site Í OUTLINE in Appendix 1 • Follow the outline and you can’t go wrong! What goes in them? Monitoring Plan Outline Key Elements < Sample site (and description) Í Constituent(s) Í Sampling protocol • Shipping (chain of custody) • Analysis Method Í Lab • Phone numbers Í How you calculate compliance • TCEQ guidance describes this Monitoring Plan Outline Key Elements < Four Sub-sections based on location Í (A) Raw water Í (B) In-plant Í (C) Entry point to distribution system Í (D) Distribution system (A) Raw water Describe the sample site, what you sample, and how often < (A) Raw water Í Describe sampling location Every well/source should have sampling site (290.41) Í GW: Coliform samples for vulnerable wells • Now: 900 wells in state (out of 18,000) Í SW: Raw TOC and alkalinity • All who TREAT surface water (B)In-Plant Chemical Injection Points Lake Don Sampling Points Every 4 hours Alkalinity Monthly TOC Sampling Disinfectants Other Chem icals pH, Turbidity Cl2 (PAC as needed) Alum Rapid mix Mostly for Surface D1 Flocculation Water, but... Sedimentation Cl2 < Plant Cl2 Turbidity D2 Filtration Schematic Cl2 Cl2 Turbidity, pH Í Showing sample D3 Transfer well Cl 2, pH sites Clearwell Cl2, pH Alkalinity Í Disinfection Fluoride Turbidity TOC Distribution D1= Disinfection Zone 1 D2= Disinfection Zone 2 zones Cl2 D3= Disinfection Zone 3 (C) Entry Point Defined as: a point where freshly treated water enters the distribution system < Entry point locations must be described / presented as: < Schematic, AND < Table Í Format from Integrated Water Utilities Database (iWUD) Í See TCEQ web site, search iWUD, look for PWS DATA SHEET REPORT Point(s) of Entry (C) Entry Point TABLE EP Name/ < Schematic, and Table: Entry Source “Plant Sample Point summation Name” Site Number: Name of GENERAL SPECIFIC G0001 aquifer(s), location of location of lake(s), or sample site: sample site: purchased “Chlorinator” Hose bibb on source(s) north side of well house (C) Entry Point Schematic City of Purchaser Water Utility PWS ID# 1234567 ENTRY POINT SCHEMATIC EP 001 City of Notnomore Contract lapsed 1/1/98 (300 gpd) City of Valve removed 1/1/99 - spool piece Purchaser required for emergency connection Distribution Cl 2 System EP 002 City of Wholesaler 500 gpd (contract includes Sen. Smith Memorial Elevated minimum chlorine residual) Storage Tank 3000 gallons EP 003 Verde RWA Ima Competent 1/1/04 600 gpd Ima Competent, Operator - 01/01/2004 (C) Entry point WHAT you sample: SW, GW, everyone < (1) Disinfectant residuals < (2) Organic and inorganic chemicals < (3) Chlorine dioxide (if you use it) < (4) Chlorite (if you use CLO2) < (5) Bromate (if you use ozone) (D) Distribution system < Lists and Schematic(s) for May be able to present all sample sites on one drawing Í Coliform (and Disinfectant Residual) Í Disinfection Byproducts • THM and HAA Í Lead / Copper houses Í Asbestos - If you have A/C pipe Í Chlorine Dioxide/Chlorite - If you use Chlorine Dioxide City of Purchaser Water Utility PWS ID# 1234567 DISTRIBUTION SYSTEM COLIFORM SAMPLING SITES (D) City of EP 001 Shiny Ct. 2 Distribution Notnomore 3 1 System Cl 2 EP 002 4 Zapata Rd. 6 < Coliform City of Wholesaler Sen. Smith Memorial Elevated Storage Tank 5 City Hall Sample 7 8 Smith Blvd. 9 Sites EP 003 Verde RWA 10 Í Number to City of Purchaser 11 FM 1325 12 correspond with list 13 Lee Ave. 14 Ima Competent 1/1/04 15 Ima Competent, Operator - 01/01/2004 (D) Distribution System < DBP Sites: Í Based on worst-case entry point DBP Monitoring type: • As reflected in iWUD... see PWS Data Sheet Report (next slides) • IF both SW and GW flow in to one entry point, site will be sampled like Surface Water Í Maximum Water Age • (Max detention time) Í Representative of all water sources City of Purchaser Water Utility PWS ID# 1234567 DISTRIBUTION SYSTEM DBP SAMPLING SITES (D) Distribution EP 001 City of Notnomore System G, Cl 2 Shiny Ct. unused EP 002 Zapata Rd. 1 < DBP Sites City of Wholesaler Sen. S m ith Mem orial Elevated Storage Tank City Ha ll G, used003 EP Smith Blvd. Verde RWA City of Purchaser S, used FM 1325 Ima Competent 1/1/04 Ima Competent, Operator - 01/01/2004 Lee Ave. 2 What tools are available? < Data sheet from the TCEQ web site < Sample Cost Estimate and Í < Water System Í < TCEQ Central or Region Offices Í Data Sheet What is the Data Sheet? < Public Water System Data Sheet < Integrated Water Utilties Database Í iWUD < Inventory of Texas water supplies Í EPA reporting Í Implement Drinking Water Standards Data Sheet Where do you get the Data Sheet? < WEB - TCEQ • http://www.tceq.state.tx.us/permitting/waterperm/ ud/iwud.html < View data on screens and print Í Houston’s, San Antonio’s, Lubbocks, etc. Í Too many pages!!!! Print needed pages < Draft Data Sheet Guidance available Data Sheet Where does it come from? Í TCEQ Investigator and PWS • Prints and updates Data Sheet from iWUD • CCI (Comprehensive Compliance Investigation) Í Contract Sampler and PWS • Field Report Í PWS - phone calls, letters, data sheet Í PDW Section - review, QC and data entry Í Data visible on iWUD Data Sheet < Inventory information < Entry Point < Plant < Treatments < All active sources of drinking water Í operational or demand < Inactive Sources - all others < Linkages Field Reports Why are sample contractor field reports important? < Frequency of visits < Latest, system information < Updated inventory, entry point, plant, treatment, source and linkage information < Need quality dependable information Field Reports What is sent in by the Sample Collector? Í New entry point, plants, treatment, sources, and linkages Í Sample site descriptions and locations Í Improved data for next sampling event Í New responsible official and/or contacts Í Anything significant for the purpose of this monitoring Monitoring Plans < PWS Í Regulated entity with expertice Í Monitoring Plan < TCEQ Investigators Í Compliance of Rules and Regulations < Sampling Contractors Í Monitoring < PDW Section Í PWS Data Inventory Í Compliance of Drinking Water Standards TCEQ Public Drinking Water Section (512) 239- 4691 THANK YOU!
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