(Developing a Monitoring Plan for a Public Water System) by AaronTevis

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									  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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