Transcript
12 Quick Facts
1. You’re reading this right now2. You realize this a silly fact4. You didn’t realize I skipped #35. You’re checking right now6. You’re smiling7. You’re still reading these silly facts9. You didn’t notice I skipped #810. You’re checking and smiling because you fell for it again11. Did you forget there was only suppose to be 1012. Did you realize there really is 10 – I left out 3 and 8
Drinking Water Compliance & OperationsMarch 2013June 2, 2011
Cherokee, Iowa
Tentative Schedule
• 8:30 – 9:00 Operator Responsibilities • 9:00 – 10:15 Permits and Monthly Reports• 10:15 – 10:30 Break• 10:30 – 11:45 Sampling Plans• 11:45 – 12:45 Lunch• 12:45 – 1:45 Other Record Records• 1:45 – 2:00 Break• 2:00 – 3:00 Asset Management• 3:00 ‐ ??? Wrap up and CEU’s
Introductions
• Iowa Rural Water Association Staff– Dale Barrie – Training Specialist
• McClure Engineering– Gary Brons – Business Development
Goals
To provide a basic overview of operator responsibilitiesTo review recordkeeping and reporting
requirementsTo review system specific issuesReview and refresh memoryGain Knowledge
Operator Responsibilities1. Protect health and welfare of the public2. Provide a quality product to the consumer
Complete 1 & 2 by:1. Follow the rules and regulations as set by the
primacy agency2. Provide O&M for the infrastructure of the
system3. Keep appropriate records4. Assist decision makers with long term planning
for the system
PWS REGULATIONS United States Environmental Protection Agency(USEPA) National Authority Sets standards – SAFE DRINKING WATER ACT Enforcement Oversees state agencies
Iowa Department of Natural Resources (IDNR) Primacy agency ‐ Primary enforcement authority Rules must be as stringent or more stringent then federal rules
Primacy Agency
Iowa Department of Natural ResourcesState Office in Des Moines
Six DNR Regions
• Field Office #1
909 West Main Suite #4 Manchester, IA 52057 Phone: (563) 927‐2640 Fax: (563) 927‐2075
• Field Office #2
2300 15th Street SW Mason City, IA 50401 Phone: (641) 424‐4073 Fax: (641) 424‐9342
• Field Office #3
1900 North Grand Ave, Suite E17 Spencer, IA 51301 Phone: (712) 262‐4177 Fax: (712) 262‐2901
• Field Office #4
1401 Sunnyside Lane Atlantic, IA 50022 Phone: (712) 243‐1934 Fax: (712) 243‐6251
• Field Office #5
401 SW 7th, Suite I Des Moines, IA 50309 Phone: (515) 725‐0268 Fax: (515) 725‐0218
• Field Office #6
1023 West Madison Street Washington, Iowa 52353‐1623 Phone: (319) 653‐2135 Fax: (319) 653‐2856
DNR Emergency Response & Homeland Security Unit
(Environmental Hazardous Conditions)
24 – hour Emergency Spill Response Phone Number: 515/281‐8694
Iowa Administrative Code(IAC)
Chapter 40: Definitions Chapter 41: Water Supplies Chapter 42: Records & Reporting Chapter 43: Design & Operation Chapter 81: Operator Certification
“THAT’S THE WAY WE’VE ALWAYS DONE IT”
Records
Operations PermitMonthly Operations Report Sample Plans Total Coliform Rule Sample Plan w/GWR addendum Lead & Copper sites – collection/reporting procedures Disinfection/Disinfection By-Products
Sanitary SurveysOperation and Maintenance ManualsStandard Operating Procedures (SOP’s)
Records (cont)System schematicsSource water Well logsDrawdownYield
TreatmentFlow chartChemicals
DistributionMapsMain, valve, hydrantsStorage
Records (cont)
Annual Water Use Report Consumer Confidence Report
• Record Retention & other considerations
IDNR Webpage: Forms
Electronic News
• Iowa Department of Natural Resources Water Supply Listserv
• DNR Eco News Wire
OPERATIONS PERMIT ISSUED BY PRIMACY AGENCY (IDNR) CONTAINS THE REQUIREMENTS NEEDED TO OPERATE YOUR WATER SYSTEM
PUBLIC WATER SUPPLY IDENTIFICATION NUMBER (PWSID#)
NAME & ADDRESS OF SYSTEM NAME & ADDRESS OF OPERATOR SPECIAL PROVISIONS & CHANGES FROM PREVIOUS PERMIT
OPERATIONS PERMITcontinued
MONITORING REQUIREMENTS SOURCE ENTRY POINTDISTRIBUTION SYSTEMROUTINE (Self) MONITORINGMANDATORY TREATMENT OBJECTIVES & OPERATIONAL RESTRICTIONSDISINFECTION BY‐PRODUCT REQUIREMENTS
OPERATIONS PERMITcontinued
PARAMETER What are we testing for?
FREQUENCY How often do we sample?
LOCATION OF SAMPLE Where do we sample from?
SAMPLE PERIOD (WHEN TO SAMPLE) When do we sample?
NOTES REGARDING ANY SPECIAL REQUIREMENTS COMMENTS OR RANGES
General Permit Conditions#5 OPERATION AND MAINTENANCEAll facilities and control systems must be operated as efficiently as possible and maintained in good working order in accordance with 567 IAC Chapter 43. A sufficient number of staff, adequately trained and knowledgeable in the operation of your facility, must be retained to achieve compliance with the terms of this permit.
MONTHLY OPERATION REPORT(MOR)
IAC 567.4(3) Must be completed each month, signed by the operator in charge, sent to the local field office by the 10th of the month
Includes; pumpage, chlorine used, chlorine residual and other self monitoring parameter results and calculations as required by your permit
Contains the operational records to track water quality (*the numbers actually mean something*)
Routine Monitoring
Gas = 100%Liquid = 12.5% When signed
each month
Separate MOR if more than 1
Routine Monitoring
New Column
Drawdown for each well
List the number of samples that you used in calculating the monthly average for your MRDL each month.
Maximum Residual Disinfection Level Calculation
Calculation of maximum disinfectant residual is based on the monthly average of the Total chlorine residual measured at the same time compliance bacterial samples are collected (includes Repeat/Check samples but excludes Specials).
*Should not exceed 4.0 mg/L*
Well Level Info(drawdown)
The difference between the static water level and the pumping water level. Determined by the ability of the aquifer to replace the amount of water that is being pumped. Record the static and pumping water levels on your MOR Check monthly
SAMPLING PLANS
Bacteriological Disinfection/disinfection by‐products
Lead & Copper
Sampling Plans should be reviewed and updated by the public water supply system annually and shall be retained on file at the facility. The plans must be made available to IDNR upon request and during sanitary surveys and must be revised by the system as directed by the department.
BacteriologicalSample Plans
The Iowa Administrative Code 567 IAC 41.2(1)”c”, requires that public water supply systems collect total coliform samples at sites which are representative of water throughout the distribution system according to a written sample siting plan. Guidelines for proper sample site selection and sampling
techniquesWho is authorized to collect the samples List of routine sampling sites per sampling period List of repeat sample sites for each routine sample siteMap of the distribution system Sample collection log sheet
Sites to Avoid
Authorized sample collectors
Not so authorized sample collectors
Routine Sample Sites
April 2011Routine Sample Site Location:
Methodist Church Kitchen111 E North St.
Check/Repeat Sample Sites:113 E. North St.110 E. North St.
GWR Update to your Bacteria Sampling Plan
• Add a triggered source water monitoring plan to the PWS bacteria sampling plan– Identify each TCR sampling site– Identify every well or wells that serve each site– Describe how the wells are used– Describe the sample tap for each well
• Identify the location
– For consecutive system, have an after‐hours method to contact the wholesale system(s)
– After‐hours telephone number for the laboratory
• Fill‐in‐the‐blank plan/addendum available from DNR– DNR WS website or FO WS staff
Source Water Monitoring• Triggered Source Water Monitoring (TG)
– Each positive “Routine” total coliform bacteria sample in distribution system requires that each groundwater source that could have reasonably contributed to that water sample, be sampled for one of three fecal indicators within 24 hours of notification
• E. coli, enterococci, or coliphage
– Collect the sample before any treatment– Do not shock chlorinate between RT and TG/RP– Requirement does not apply to “Repeat” or “Special” samples
Triggered source water monitoring (sample each well for fecal indicator) plus the normal “Repeat” samples within 24 hours
4-log inactivation or removal of virus prior to first customer
OR
If the fecal indicator is positive in well sample, collect 5 additional samples from the well within 24 hours AND provide acute public notice
Maintain required operational levels, conduct required monitoring, and submit & maintain required recordkeeping
Identify and fix problem; include in CCR
Positive “Routine” Coliform Bacteria Sample
GWR sampling requirements at a
glance:
Disinfection/Disinfection By‐Products
• General Water System Information• Plant Description and Summary of Normal Operating Characteristics
• Sampling Plan• Calculations for Determining Compliance• Reporting Requirements and Forms• Sampling Instructions• Violations
Stage 2 DBPR Important Dates• Updating sampling plan
– New sample site(s)
• Systems with a VSS waiver or a 40/30– Still have to develop new sample plan
• All systems continue Stage 1 sampling per your operation permit until new permit issued (underway)
Stage 1 to Stage 2
• For combined distribution systems, PWS are required to comply at the same time as the system with the earliest compliance date.
• >100,000 January 1 – March 31, 2012• 50,000 – 99,999 July 1 – September 30, 2012• 10,000 – 49,999 July 1 – September 30, 2013• <10,000 July 1 – September 30, 2013• <10,000 SW/IGW Crypto systems July 1 – September 30,
2014
Stage 2 Sample Plan
• Review Check– The plan must be reviewed every three (3) years and updated as needed.
– Date Reviewed: ___________
*All plans/policies should have a review check*
Stage 2 Components
• 1. General Water System Information• 2. Plant Description and Summary of Normal Operating Characteristics
• 3. Sampling Plan• 4. Calculations for Determining Compliance• 5. Reporting Requirements and Forms• 6. Violations
• *Note: This plan replaces the Disinfectants/Disinfection Byproducts Monitoring Plan (Stage 1)
Stage 2 DDBP• Peak Month: This is the month with the warmest water
temperature or highest TTHM results. The sample(s) must be collected this month, as listed in your operation permit.
• High TTHM location: This is the maximum residence time location, where the water is in contact with the disinfectant for the longest period of time in the system before it’s consumed. This is likely the same location that’s been used in the past for DBP sampling (MRT location).
• High HAA5 location: This is usually an average residence time location, where the water is in contact with the disinfectant for an average period of time in the system before it’s consumed.
Stage 2 DDBP
• REDUCED sampling requirement: Your system may qualify for reduced monitoring, based on previous sampling results. You’ll be notified of this status change by the DNR if your system meets the criteria.– Systems serving fewer than 500 people may be allowed to reduce the frequency to one sample every three years.
• INCREASED sampling requirement: If a single sample result is at or above 0.080 mg/L for TTHM or 0.060 mg/L for HAA5, the system must sample every quarter for at least one year
Stage 2 DDBP
• CHANGE OF SAMPLING SITE: If you need to change a sampling site, the replacement site must meet the same targeting criteria as the original site (either high TTHM or high HAA5).
• LAB INFORMATION: All samples must be collected in the bottles provided by the laboratory and as directed by the laboratory. Samples must be placed in coolers and shipped to the certified laboratory as soon as practical.
Stage 2 DDBP
• General Sampling Procedure for TTHM and HAA5• Maximum Residual Disinfectant Level (Residual Chlorine)
• Calculations for Determining Compliance• Residual Chlorine or Chloramine MRDL (MRDL = 4.0 mg/L as a RAA)
• Reporting Requirements and Forms• Violations
Lead & CopperSample Plan
Lead & Copper
• Selection Criteria– 1A Single family – copper pipe with lead solder constructed after 1982
– 1B Single family – lead pipes– 1C Single family – lead service
• List of Primary/Alternate Sample Sites• Sample Procedures• Calculations ie 90th percentile
Lead & Copper• 2010 sampling
– Requires the PWS provide lead results to “persons served at the site that is tested” in a consumer notice within 30 days of when the system receives the results
• Many Iowa systems already notify the site owners– Consumer notice also includes Lead information– Certification required (just like CCR)
• 3 months after the end of the monitoring period, system must send the certification & copy to DNR
Info to include Lead MCLG and AL and definitions
Lead result for that location
Explanation of the health effects
List of steps consumers can take to reduce lead exposure in drinking water
Contact information for water supply
Reduction in Lead (low lead brass)
SDWA law amended ‐ January 4, 2011Reduces lead content from 8% to 0.25%Applies to wetted potable water surfacesTakes effect January 4, 2014Exceptions: Gate Valves 2” and larger as well as meter saddles
Installation prior to 2014 are grandfathered in….however if you take a grandfathered device after January 4th you cannot reuse it.
WATER USE REPORTAnnual
To be completed and sent to DNR by January 31st each year Page 1 has instructions for completion of the report Page 2 has following data:
Permit # Permit holder Figures reported in ? units Type of source used Name of source Static water level of wells Monthly water use by category Data on report preparer
ANNUAL WATER USE REPORT FORM (Read instructions on reverse side before completing.)
1. PERMIT NO: _________________ 4. TYPE OF SOURCE USED: [ ] Well [ ] Gravel Pit/Quarry (Follow instructions carefully.) [ ] Stream [ ] Reservoir/Lake/Pond 2. PERMIT HOLDER (Please print): __________________________ Name of water source: ______________________________________
3. WATER USE REPORTED IN: 5. STATIC WATER LEVEL (Well #, Depth to water surface, prior to withdrawal, in ft)
[ ] ACRE-FEET Well # ___ , ______ ft Well # ___ , ______ ft Well # ___ , ______ ft [ ] GALLONS (If more wells are included in permit, list static water levels on a separate attached sheet.) [ ] OTHER (Specify): _________________ 6. DETERMINATION OF WATER USE: [ ] Metering [ ] Calculation
7. YEAR 8. IRRIGATION 9. Municipal, Industrial, Commercial
10. AGGREGATE PRODUCTION/MINING
11. OTHER
200__
CORN / BEANS Specialty Crop: (fruits & vegetables)
GOLF COURSE / SOD FARM
(wetland development,
recreational, etc.) DEWATERING WASHING
Acres: Acres: Acres:
MO
NTH
LY W
ATE
R U
SE
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
12. TOTAL
NAME (Print) _____________________________________________ SIGNATURE & DATE _____________________________________________ REPORT PREPARED BY: [ ]Permit Holder [ ]Agent [ ]Tenant [ ]Consultant [ ]New Owner [ ]Other (Specify) ________________________
WATER SUPPLY SECTION --- DNR FORM NO. 542 - 3115 (R-12/04)
CONSUMER CONFIDENCE REPORT (CCR)
The CCR is an annual report to the customers of your system summarizing information regarding the source of their water, any detected contaminates, compliance issues and educational information.
It’s purpose is to improve public health by allowing consumers to make educated decisions regarding the potential health risks pertaining to the quality, treatment and management of their drinking water supply.
CCR – important dates
April 1 – Deadline for all PWS which sells water to another PWS to deliver the information needed for the buyer PWS to prepare their CCR.
July 1 – Deadline for distribution of CCR, covering January 1 to December 31 of previous year, to customers.
October 1 (or 90 days after distribution, which ever is first) – Deadline to certify to DNR proof of distribution of the CCR
NEW CCR FormatDraft Consumer Confidence Reports (CCRs) were mailed to all
Community Public Water Supplies Friday, March 15, 2013.This year, the Iowa Department of Natural Resources (DNR) is
providing the draft CCR in a format that can be considered “ready”, or “mostly ready” to distribute.
In some cases, the DNR does not have all the necessary information to provide a completed CCR, so more information is needed to complete the report.
In all cases, the CWS should ensure the data is accurate and correct. If modifications are necessary, an electronic copy of the draft CCR can be sent to the CWS upon request.
Potential Updates
• Corrective actions taken to address any violations assessed
• Contact information for the CWS• Fluoride range if the CWS adds Fluoride• Total organic carbon (TOC) reported as % removed• Turbidity data (violations and results)• The Running Annual Average (RAA) for TTHM and HAA5 may not be accurate if the CWS has multiple plants or if the CWS switched from Stage 1 to Stage 2 monitoring after January 1, 2012
• Cryptosporidium sampling per Long Term 2 Enhanced Surface Water Treatment Rule (LT2)
• Chlorine and Chloramine MRDL values will be provided using the data reported with the TCR sample results. These values should be compared to the daily MOR results and modified as appropriate
• Data collected as part of the Unregulated Contaminant Monitoring Rule 2 (only applies to a small number of CWSs participating in the EPA study; UCMR3 data is not included until next year)
New CCR Electronic Delivery Options
Electronic delivery of the CCR is now an acceptable method of delivery of the CCR. Listed below are the CCR E-Delivery Methods. Any URL that is created must remain active for 3 years.
Mail notification that CCR is available on website via a direct URL
CWS mails to each bill-paying customer a notification that the CCR is available and provides a direct URL to the CCR on a publicly available site on the Internet where the CCR can be viewed.
A URL that navigates to a webpage that requires a customer to search for the CCR or enter other information does not meet the “directly deliver” requirement.
The mail method for notification may be, but is not limited to, a water bill insert, a statement on the water bill, or a statement in a community newsletter.
Email a direct URL to the CCR to each customer
CWS emails a notification to each bill‐paying customer that the CCR is available andprovides a direct URL to the CCR on a public available site on the Internet.
A URL that navigates to a webpage that requires a customer to search for the CCR orenter other information does not meet the “directly deliver” requirement.
This method may only be used for customers for whom the CWS has a valid emailaddress.
Email the CCR as an attachment to the email
CWS emails the CCR as an electronic file email attachment (such as a portable document format or .pdf).
Email the CCR as an embedded image in an email
CWS emails the CCR text and tables inserted into the body of an email, not as an attachment.
Additional electronic delivery that meets “otherwise directly deliver”
requirement• CWS delivers CCR through a method that “otherwise directly delivers” to each bill‐paying customer and in coordination with IDNR.
• This category is intended to encompass new methods or technologies in the future that aren’t addressed in the first 5 categories.
“Directly Deliver” RequirementsThree elements must be met in order to use the electronic delivery to
comply with the “directly deliver” requirement.
1. Electronic delivery must provide the CCR in a manner that is “direct.” A CWS can use separate mailings to meet its CCR requirement, such as utility bills with a printed URL, if the URL provides a direct link to the CCR and if the communication prominently displays the URL and a notice explaining the nature of the link.
2. If a CWS is aware of a customer’s inability to receive a CCR by the chosen electronic method, the system must provide the CCR by an alternative method allowed by the rule.
3. A CWS must prominently display a message and the direct URL in all mail notifications of the CCR availability.
Methods that do not meet the CCR Delivery Requirements
1. A URL that does not take the customer to the entire CCR, but requires navigation to another webpage to find CCR content.
2. Use of social media directed at bill‐paying customers, such as Facebook or Twitter, since those are membership Internet outlets and would require a customer to join the website to read the CCR. However, use of social media can be an appropriate additional ‘good faith’ distribution method.
3. Use of automated phone calls, such as the emergency telephone notification or bill payment systems, because the entire content of the CCR cannot be provided in the phone call.
Important Considerations1. A CWS needs to ensure delivery to every bill‐paying customer, which may
require a combination of paper and electronic delivery options.
2. If a CWS sends the CCR via email and it receives a message that the email failed to reach the customer (a bounce back note), the CWS should send the CCR by an allowable alternative means.
3. The CWS should conduct a public outreach to provide advance notification of the change in the delivery approach.
4. A CWS using a direct URL notification should consider a check box on the return portion of the water bill, similar to a change of address or pay by credit card, in which the customer can elect to receive a paper CCR. A notice on the bill with a phone number where a customer can call to receive a paper CCR is also a method to ensure that those people who don’t have computer access can still receive the CCR if they so choose.
5. The direct URL notification should be displayed in a typeface that is large and easily readable on the statement.
SANITARY SURVEYS
The US EPA defines a sanitary survey as “an onsite review of the water source, facilities, equipment, operation and maintenance of the public water system for the purpose of evaluating the adequacy of such source, facilities, equipment, operation and maintenance for producing and distributing safe drinking water.”
SANITARY SURVEYScontinued
Performed by the primacy agency (DNR) Frequency:Non‐Community every 5 yearsCommunity every 3 years
SANITARY SURVEYScontinued
Reduce the risk of disease Improves the knowledge of system operators and management Identify system needs Document compliance issues
Eight Elements1. Sources2. Treatment3. Distribution System4. Finished Water Storage5. Pumps, Pump Facilities, & Controls6. Monitoring, Reporting, & Data Verification7. Water System Management and Operation8. Operator Certification Compliance
Sanitary Surveys
• SUMMARY OF SIGNIFICANT DEFICIENCIES– Must be address immediately – Compliance date
• SUMMARY OF MINOR DEFICIENCIES– Addressed ASAP– Compliance or plan date
• SUMMARY OF RECOMMENDATIONS– Compliance not required– May need budgeting– Almost always a good idea
Sanitary Survey Observations (DNR Region 4)
Rodent Poison
Evidence of chemical application
Row Crops
Day Tanks
NSF Certification
Other Records
• O&M Manuals• Water Audits – Water Loss• Source/Well records• Treatment• Distribution System• Sample Calendars• Other Records
O & M MANUALS (SOP’s)• Written records• Policies – don’t depend on “that’s the way we’ve always done it”
• SOP’s – filter backwashing, softener regeneration, etc
• Programs – hydrant flushing/valve exercising
Standard Operating Procedures
• Jobs not necessarily done on daily basis• Provides assistance to new employees• Review for “seasoned” employees• Check list of necessary steps
Water Audits
A water audit is an accounting procedure which purpose is to accurately determine the Real Water Loss (RWL)in a water system.
RWL is calculated from verified supply and consumption records, factoring in various estimated usage figures.
Water Loss
H2O entering the system – (water sold + water accounted for) = water loss
An audit is the accounting of all water use in the system to determine water loss
Water loss should be 10% or less
Authorized Uses
• Metered uses whether billed or not– Residential, Commercial, Industrial Customers– Churches, Schools– Community Centers, Libraries, Senior Centers– City Halls, City Shops, Water Treatment Plant, Wastewater Plants
– Parks, Cemeteries
Authorized Uses Fire fighting (estimate) Hydrant flushing and flow testing Storm and Sanitary sewer flushing Street cleaning Bulk water sales Storage tank cleaning & draining (estimated) Public irrigation (Parks) Water plant uses Repaired system leaks (estimate) Other?
Apparent LossesMeter inaccuraciesData errorsHuman errorsUnauthorized uses (thefts)Storage Tank OverflowsMalfunctioning Control ValvesNew ConstructionVacant Connections
Real Water Loss
System losses (leaks)Pipe jointsValvesHydrantsMain or service line breaks
Meter Inaccuracies
Wells
• Records– Drilling logs
• Depth, size, casing, screen
– Drawdown• Static, pumping levels
– Specific Capacity• Calculated by dividing the rate of pumpage (gpm) by the drawdown (feet) and is recorded as gpm/ft – ie @ 100 gpm your drawdown is 20 feet, your SC is 5 gpm/ft.
Treatment Need to Know
• Manufacture of all equipment– Tanks, filters, aerators, pumps, etc– Repair parts and technicians
• Chemical Suppliers• Scada (control system)• Normal operating parameters
Distribution• Maps
– IMPORTANT RECORD• Mains
– Size and type• Hydrants
– Flushing, inspections• Valves
– exercising• Storage
• Inspections, maintenance• Meters
– Cash registers – accuracy very important
Pressure Loss in system
Public Notice Rules• Contaminants:
– Nitrate, nitrite, confirmed fecal coliforms, chlorine dioxide, high turbidity, waterborne disease outbreak, or other waterborne emergency (such as failure or significant interruption in key water treatment processes)
• System must consult with DNR within 24‐hrs– Use the Emergency Response Hotline after business hours:
515/281‐8694
Pressure Loss Concerns
• Loss of pressure can cause backsiphonage– Especially a concern with high‐risk connections
• Industrial parks• Meat‐packing plants• Greenhouses• Ag co‐ops• Hospitals• Livestock producers
Pressure Loss Concerns
• Loss of pressure can allow seepage of groundwater into pipes– Areas of special concern
• Near creek/river crossings• Areas with high groundwater table • Near high pathogen hazard areas
–Open feedlots–Wastewater lagoons–Wastewater mains
Things to consider If pressure loss is due to a main break, disinfect and flush prior
to returning main to service Take a “special” coliform bacteria sample to ensure safety of
drinking water Notify affected customers (Who do they call if they have questions)
What happened What should they do
Open up cold water taps to flush out the system
Loss of pressure = loss of additional contamination barrier
Immediately notify IDNR and customers especially if pressure loss creates obvious potential for a waterborne emergency (Tier 1)
Reporting Pressure Losses
Tip 1 – When in doubt – CALL! Each DNR field office determines the need to issue a boil water advisory.Area & number of customers affectedReason for the drop in pressureLength of time pressure is at zero
Tip 2 – Do not let IDNR be the last to know
Blue Water
• 1998 – NW Iowa– Line break following main extension– Break in commercial area – Turned off upstream valve to repair next day– Water flushed blue next morning
• Florist/Nursery had left hose in liquid fertilizer tank with water on
• Entire tank backsiphoned into distribution system
– Actions included flushing, PN, alternate water source, extra sampling
Power Outage
2003 and 2005 – City in SW Iowa 2003 – Design flaw in treatment plant caused water to back up and spill on plant floor. Electrical system shorted out and caused power outage. Towers drained and city lost pressure.
Actions included issuing a boil order, collecting “special” bacteria samples, boosting chlorine residuals and line flushing.
Communication Problem 2000’s – NE IowaA mayor decided not to waste money on water and electricity while the fire department was flushing mains and turned off the well pumps The affidavit operator was not informed until his next visit that the entire distribution system and tower had been completely drained
Backflow/Cross Connection
• www.epa.gov/safewater/pdfs/crossconnection/crossconnection.pdf
– More examples– Cross connection control methods– How to start a cross connection control and backflow prevention program
– Helpful illustrations– Misc. templates for your use
Sample Calendars
• Importance (don’t depend on your lab)• When you should be receiving sample containers
• Sample collection• Sample shipping• Results received
OTHER IMPORTANT RECORDSDay to day operations journal or log of the work completedChemical feed settings/changesChemicals used gallons/lbs
Records of all sample results & locationsAnnual plan of projects such as hydrant flushing, valve exercising, etc
Meter records, installation dates, serial #’s, readingsRecord of complaints or other issues and how they were resolvedLocation and dates of leak repairsFilter Backwash Logs, other treatment recordsRepair and construction dataRecords of chemicals purchases
Meeting/phone call notes Correspondence with DNR Record of operator certification System specific informationMiles of pipe, number of valves, hydrants
Information for rate calculationsAnnual costs (break down by categories)Cost per 1,000 for purchase or production
RECORD RETENTION Monthly Operation Reports (MOR) – 5 years Bacteriological analyses – 5 years Chemical analyses (IOC, SOC, VOC , etc) – 10
years Lead & Copper analyses – 12 years Sanitary Surveys, written report, summaries
or other communication relating to – 10 years Public notification & CCR’s – 5 years
RECORD RETENTION
Actions taken to correct violations – 5 years Stage 1 DBPR monitoring plans – 10 years Stage 2 DBPR monitoring plans – 10 years Disinfection profiling and benchmarking – Indefinitely Individual filter monitoring results (surface or GWUDI) – 5
years Record for recycled filter backwash – Indefinitely Long Term 2 Enhanced Surface Water Treatment Rule records
– 5 years
Issues to consider concerning generation and storage of records
Limit access to sensitive information Install and maintain firewalls on network computers Install and run virus scans on computers Use passwords Install and maintain back up power supplies Maintain back up copies Develop hard copy or electronic filing systems Ensure there is a satisfactory way to destroy electronic and hard
copies of records with sensitive information Erase hard drives Shred paper Destroy electronic media
Other Programs to consider:
Viability Assessment Vulnerability Assessment Emergency Response Plan Capitol PlanningWellhead/Source Water Protection
Viability Assessment
Self‐assessment manual available through DNR allows you to assess: FacilitiesManagement Capabilities Finances
VA & ERP
Assesses your system’s vulnerability to:Natural DisasterVandalsDisgruntled Employees or citizen TerroristsOther
Plans your response to an emergency
Wellhead/Source Water Protection
Inventories sources of possible contamination Provides a plan to eliminate or reduce the possibility of contamination from identified sources
top related