monthly operator reports for filtered surface water systems

Operator Reports

Monthly Operator Reports for Filtered Surface Water SystemsSustained Compliance Workshop - Anchorage, AKSeptember 23-24, 2010

Eric BurgKenai Peninsula & Southeast Alaska Compliance & Monitoring SectionDEC Drinking Water [email protected] / (907) 262-5210 ext. 24611Presentation OutlineIntroduction

Elements of an Operator Report & Reporting Requirements

Common Reporting Errors and Issues

Summary22Introduction

33Introduction ContinuedMonthly Operator Reports serve several functions

Primary function is it provides a way to track effectiveness of the filtration and disinfection system.

Provides a record of daily operational readings.

A means of reporting to DEC that all regulatory requirements have been met.44Introduction ContinuedDifferent Types of Operator Reports

Conventional or Direct Filtration3 or more filtersLess than 3 filters

Alternate Filtration, Slow Sand, or Diatomaceous EarthStandard reportReduced Monitoring55Introduction ContinuedSystem Information & Daily ReadingsCombined Filter and Disinfection Performance

66Introduction ContinuedContinuous Monitoring SummaryCFE or IFE Turbidity Exceedance Report

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7Presentation OutlineIntroduction



Summary88Elements of an Operator ReportPage 1 of Operator ReportSystem Information and Daily Readings Page

System InformationPublic Water System (PWS) NamePWS ID #AddressPhone #Month & Year of reportTurbidityEntry Point ChlorineFilterFluorideOperator Signature Line

9The first section that Im going to review on page 1 of the operator report deals with the system information and9

1010Elements of an Operator Report Page 1 of Operator Report Continued11

11Elements of an Operator Report Page 1 of Operator Report ContinuedSystem InformationPublic Water System (PWS) NamePWS ID #AddressPhone #Month & Year of reportTurbidityEntry Point ChlorineFilterFluorideOperator Signature Line

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14Turbidity Reporting RequirementsCombined filter effluent (CFE) turbidity measurements

Taken after the point where all individual filter effluents combine.

Turbidity measurements are taken from grab samples or online turbidimeter recordings taken at four hour intervals.

Recorded on first page of operator report.1515Turbidity Reporting Requirements ContinuedCFE turbidity requirements

95% of all CFE turbidity measurements taken during the month must be less than or equal to:

0.3 NTU for Conventional and Direct filtration plants

1.49 NTU for Alternative, Slow Sand, & Diatomaceous Earth plants

1616Turbidity Reporting Requirements ContinuedMaximum CFE Turbidity limits:

1.49 NTU for Conventional and Direct plants

5 NTU for Alternative, Slow Sand, & Diatomaceous Earth plants

Must notify DEC within 24 hours if maximum CFE limit is exceeded.Document on Page 2 of operator report.1717Elements of an Operator Report Page 1 of Operator Report ContinuedSystem InformationPublic Water System (PWS) NamePWS ID #AddressPhone #Month & Year of reportTurbidityEntry Point ChlorineFilterFluorideOperator Signature Line

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20Entry Point Chlorine Reporting RequirementsResidual readings collected daily at entry point to the distribution systemSampling frequency is based on population #s500 or fewer = 1 sample/day

501 1,000 = 2 samples/day

1,001 2,500 = 3 samples/day

2,501 3,300 = 4 samples/day

3,301 or greater and all other systems that monitor continuouslyMust report lowest value each day2121Entry Point Chlorine Reporting Requirements ContinuedEntry point chlorine residuals must be at least 0.2 mg/L at all times.Some systems may have a higher entry point chlorine concentration requirement.To meet contact time requirements.Flow CharacteristicsTurbidity levels

2222Entry Point Chlorine Reporting Requirements ContinuedIf entry point residual drops below 0.2 mg/L

Contact DEC soon as possible - no later than the end of the next business day.

Date and duration below 0.2 mg/L must be recorded on page 2 of the operator report (Entry Point Disinfection Performance Criteria).

DEC will review if treatment technique violation was generated.If chlorine level is raised above 0.2 mg/L within 4 hours, no violation will be assessed.2323Elements of an Operator Report Page 1 of Operator Report ContinuedSystem InformationPublic Water System (PWS) NamePWS ID #AddressPhone #Month & Year of reportTurbidityEntry Point ChlorineFilterFluorideOperator Signature Line

2424

252526

26Filter Reporting RequirementsDid you filter & produce water during the day?

Check Yes or No2727Elements of an Operator Report Page 1 of Operator Report ContinuedSystem InformationPublic Water System (PWS) NamePWS ID #AddressPhone #Month & Year of reportTurbidityEntry Point ChlorineFilterFluorideOperator Signature Line

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30Fluoride Reporting RequirementsMeasured daily at the entry point to the distribution system.

Entry point fluoride residual must not exceed 2.0 mg/L.

Notify DEC within 24 hours if fluoride residual is equal to or greater than 2.0 mg/L.

3131Fluoride Reporting Requirements ContinuedOn the first day that the fluoride residual is > 2.0 mg/L, a confirmation sample must be collected and sent to a certified laboratory to verify field test results.

Public Notice requirements will be based upon certified laboratory sample results.Circumstances may dictate otherwise.

3232Elements of an Operator Report Page 1 of Operator Report ContinuedSystem InformationPublic Water System (PWS) NamePWS ID #AddressPhone #Month & Year of reportTurbidityEntry Point ChlorineFilterFluorideOperator Signature Line

3333

3434Elements of an Operator Report Page 1 of Operator Report Continued35

35Operator Signature RequirementMust be signed in accordance with 18 AAC 80.1900

The owner or operator shall certify by signature that the information and data contained in a report required to be filed under this chapter are true and correct to the best of the owners or operators knowledge.

3636Elements of an Operator Report Page 2 of Operator ReportCombined Filter and Disinfection Performance Page

Combined Filter Performance Criteria

Entry Point Disinfection Performance Criteria

Distribution System Disinfection Residual Criteria

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Heres an overview of the page, which you can see has three main sections.38Elements of an Operator Report Page 2 of Operator Report continuedCombined Filter Performance Criteria



393940

40Combined Filter Performance Criteria41

41Combined Filter Performance Criteria Continued

4242Combined Filter Performance Criteria43

43Elements of an Operator Report Page 2 of Operator Report continuedCombined Filter Performance Criteria



444445

45Entry Point Disinfection Performance Criteria46

46Elements of an Operator ReportPage 2 of Operator Report continuedCombined Filter Performance Criteria



474748

48Distribution System Disinfectant Residual Criteria

4949Elements of an Operator ReportPage 3 of Operator ReportContinuous Monitoring Summary Page

Conventional and Direct Filtration systems only

Combined filter effluent monitoring less than 3 filters

Individual filter effluent monitoring 3 or more filters

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Summary5353Common Reporting Errors and IssuesDistribution chlorine residuals

Not collected at the same time and place as total coliform sample.

Not recorded on operator report.

Readings written on total coliform sample paper work may not always be reported to us by the lab.

Missed same time and place chlorine residual results in two violationsDistribution system residual requirementMaximum Residual Disinfectant Residual (MRDL) requirement

5454Common Reporting Errors and IssuesLate submittalsReports due to DEC by the 10th of the following month.Late reporting violation

Missing operator signature & dateRequired by 18 AAC 80.1900.Late reporting violation if amended report not received by 10th.5555Common Reporting Errors and IssuesNot submitting or filling out all the required pages

Not notifying DEC when requiredTurbidity exceedancesLow entry point chlorine levels

Month & Year of report not recorded

5656Common Reporting Errors and IssuesIllegible handwriting

Decimal point errors




Summary5858SummaryOperator reports are an important and useful tool to keep track of your system performance.

Turbidity readingsCFEs for all system types.IFE verification for Conventional & Direct systems.

Chlorine readingsEntry pointDistribution

Fluoride readings

Operational issues or anomalies

Satisfies regulatory reporting requirements

5959Summary ContinuedWhere to Get Operator Report Forms?

On the web at:http://dec.alaska.gov/eh/dw/publications/forms.html

From the DEC office that covers your system.6060

Summary ContinuedWhere to Send Your Report?Anchorage Office555 Cordova StreetAnchorage, AK 99501Toll Free: 1-866-956-7656Fax: [email protected]

Fairbanks Office610 University AvenueFairbanks, AK 99709-3643Toll Free: 1-800-770-2137Fax: [email protected]

Soldotna Office43335 Kalifornsky Beach Rd., Suite 11Soldotna, AK 99669-9792Phone: (907) 262-5210Fax: [email protected]@alaska.gov

Wasilla Office1700 E. Bogard Rd., Bldg. B Suite 103Wasilla, AK 99654Phone: (907) 376-1850Fax: [email protected]

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monthly operator reports for filtered surface water systems

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