data and water treatment sanitary survey training 2018€¦ · ion exchange chlorination ozonation...
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Data Quality and Water Treatment2018 Sanitary Survey TrainingUtah Division of Drinking Water
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Drinking Water
Division of Drinking Water | Data and Treatment SS training 2018
Where does
drinking water come from?
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Drinking Water
Division of Drinking Water | Data and Treatment SS training 2018
How do we know drinking water is safe?
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Drinking Water Quality
Division of Drinking Water | Data and Treatment SS training 2018
I’ve been drinking the water
I am FINE
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Drinking Water Rules
Division of Drinking Water | Data and Treatment SS training 2018
R309‐510‐7
R309‐210‐8
R309‐520‐3
R309‐200‐4
R309‐215‐12
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Laboratory Analysis – Water Quality
Division of Drinking Water | Data and Treatment SS training 2018
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Division of Drinking Water – Data Management
Division of Drinking Water | Data and Treatment SS training 2018
DatabaseDDW Data managersMaximum Contaminate Level• Source• Treatment• Distribution System
Sample result not found
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Is Data Management enough?
Division of Drinking Water | Data and Treatment SS training 2018
Violation
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Sanitary Survey - Data Quality
Division of Drinking Water | Data and Treatment SS training 2018
Opportunity to preform assessment and ask questions
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Sample Collection – It mattersWhere? When? How?
Sanitary Survey - Data Quality
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Sanitary Survey – Data Quality
Division of Drinking Water | Data and Treatment SS training 2018
Show me where you collect the sample
Show me where you record that information
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Sanitary Survey – Water Treatment
Surface Water TreatmentGround Water UDIMicrofiltrationIon ExchangeChlorinationOzonationFluoridationCorrosion Control
When good water goes bad
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13Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey – Water TreatmentChlorination
Ground Water Treatment
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Sanitary Survey – Water TreatmentChlorination
On‐site generation
Tablet
Liquid
Gas
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Sanitary Survey – Water TreatmentChlorination
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Sanitary Survey – Water TreatmentChlorination
How much Chlorine is added?Don’t set it and forget it!
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Sanitary Survey – Water TreatmentChlorinationChlorine Monitoring
ReportsHow much is added?Quarterly Chlorination Report
How much remains?Dist. Sys. Chlorine Residuals Online
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18Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey – Water TreatmentChlorinationChlorine Monitoring
ReportsHow much is added?Quarterly Chlorination Report
Operational report Select type of chlorination
Complete Daily Information
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Sanitary Survey – Water TreatmentChlorinationReportsHow much is added?Quarterly Chlorination Report
Show me where you collect the information. How do you know what dose?
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20Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey – Water TreatmentChlorinationChlorine Monitoring
ReportsHow much remains?Dist. Sys. Chlorine Residuals Online
Test chlorine residual in distribution system at least 3 times a week.
Record residuals on operations report.
Calculate monthly average. Submit monthly average on
Dist. Sys. Chlorine Residuals Online Report
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Surface Water Treatment Basics
Division of Drinking Water | Data and Treatment SS training 2018
The Chunks Remove the Chunks Disinfect the Chunks
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Surface Water Treatment
The Chunks
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Remove the Chunks
Surface Water Treatment‐ Add chemicals to create Floc
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Remove the Chunks Surface Water Treatment
Flocculation and Sedimentation
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Remove the Chunks Surface Water Treatment
Filtration
Microfiltration
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Disinfect the Chunks
Surface Water Treatment
Ozone
Ultraviolet Radiation
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Final Product- Drinking Water
Division of Drinking Water | Data and Treatment SS training 2018
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Drinking Water Treatment
Division of Drinking Water | Data and Treatment SS training 2018
Remove the Chunks Disinfect the ChunksSimple right?
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Drinking Water Treatment
Division of Drinking Water | Data and Treatment SS training 2018
• Interim Enhanced Surface Water Treatment Rule (ESWTR)• Disinfection By-products Rule (DBPR)• Total Coliform Rule (TCR)• Ground Water Rule (GWR)
The Rules
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Water Treatment Regulation
Division of Drinking Water | Data and Treatment SS training 2018
DDW Treatment Rule Managers Treatment Reports Disinfection Reports
Verification ofWater Quality and Treatment Parameters
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Water Treatment – Data Accuracy
Water Quality and Treatment Parameters
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Water Treatment – Data Accuracy
data are data
Water Quality and Treatment Parameters
Where does the data come from?
Need for theSanitary Survey
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Sanitary Survey - Data Accuracy
Division of Drinking Water | Data and Treatment SS training 2018
Opportunity to preform assessment and ask questions
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Sanitary Survey – Data Accuracy
Division of Drinking Water | Data and Treatment SS training 2018
Show me where you collect the data
Show me where you record the information
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35Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey – Data Accuracy
Real time continuous monitoring Manual Readings
How is data collected and recorded?
Random Data check – WTP or Disinfection Report Parameters
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Sanitary Survey QuestionsKnow the How and the WhyExample ‐ Turbidity
Survey Questions
What is the filter effluent quality goal? (e.g. turbidity goal in NTU)?
How often is the turbidity meter calibrated?
How often is the flow of turbidity meter verify?
Deeper LookIs this the correct location to monitor?How does the flow look?Ask to remove the head.Does the reading change?Is there water in the meter?
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37Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey QuestionsKnow the How and the WhyExample ‐ Filtration
Deeper LookCheck individual filter turbidity meters?How does the flow look?Ask for the data and calculation used for flow rate (gpm/sf)Ask for a quick peak at data or filter trends.Ask how do they collect a media sample.
Survey QuestionsWhen was the last time the filters were evaluated to determine the condition of the media?What is the maximum filtration rate throughout the year (in gpm/sf)?
What criteria are used to determine when a filter backwash is needed?
What is the typical turbidity of the filter influent water (in NTU)?
What is the typical turbidity of the filter effluent (in NTU)?
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38Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey QuestionsKnow the How and the WhyExample – Chemical ApplicationSurvey Questions
Means to accurately measure the quantities of chemicals used.
Daily operating records reflect chemical dosages and total quantities used.
Do the operators know where all of the chemical application points are and which points are being utilized?
Deeper LookDo chemical calibration apparatus look un‐used and non‐functioning?Ask them to preform a calibration on the spot.How do they acquire data for chemical dosage?Do they have spare parts for chemical pumps?Do the settings on the pump look MAXED out
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39Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey QuestionsKnow the How and the WhyExample – Recycled WaterSurvey QuestionsIf there is any recycling being performed where does the recycle water re‐enter the treatment plant?
What percent of influent flow is recycled backwash water?
Deeper Look ‐ The ChunksWhere does sludge and backwash water go? Plant influent sample collection location – is it before or after recycled water is introduced?How do you determine percent of recycled water?
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40Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey QuestionsKnow the How and the WhyExample – Disinfection
Survey QuestionsWhen chlorination is required, has the disinfection process operated uninterrupted during the past year while water was being delivered?Means to measure the volume of water treated.Chlorine residual test equipment available capable of measuring residuals to the nearest 0.1 mg/l in the range below 0.5 mg/l, to the nearest 0.3 mg/l between 0.5 mg/l and 1.0 mg/l and to the nearest 0.5 mg/l above 1.0 mg/l.
Spare parts available to replace parts subject to wear and breakage.
Deeper Look Where do you collect water quality data for concentration/time (CT) requirements.Where do you determine flow for CT calculation?How often do you calibrate the pH meter?How often do you check the flow and preform maintenance on chlorine meter?
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41Division of Drinking Water | Data and Treatment SS training 2018
Sanitary Survey QuestionsKnow the How and the WhyExample – Disinfection
Survey Questions
Have any new connections been added between the point of disinfection and an existing first customer that would affect compliance with disinfection CT requirement?
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The Big Picture
Division of Drinking Water | Data and Treatment SS training 2018
Review the Data
Preform the inspection
Ensure Compliance
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To sum it all up
Division of Drinking Water | Data and Treatment SS training 2018
Safe Drinking Water takes
Team Work between the Regulator and the
Water System
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Questions?