Transcript State of Maine Drinking Water Program

Drinking Water Sampling
MRWA’s Annual Meeting
December 10, 2014
Carlton Gardner
Compliance Team Leader
Maine Drinking Water Program
207-287-8403
www.medwp.com
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DWP’s Core Message
• The ability for a PWS to provide Safe Drinking
Water revolves around four principals:
Protect Your Source
Take Your Samples
Maintain Your Treatment
Inspect Your Pipes & Tanks
• DWP is here to help public water systems do
these things
Protect Your Source
Keep Your Drinking Water Safe:
Take Your Samples
Maintain Your Treatment
Inspect Your Pipes & Tanks
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The Drinking Water Program works to ensure safe
drinking water in Maine and to protect public health by
administering and enforcing drinking water and
subsurface wastewater regulations, providing education,
technical and financial assistance.
The program staff includes engineers, geologists,
chemists, environmental and legal specialists and other
dedicated professionals. As a result, there is a range of
expertise available to the regulated community and the
general public.
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*
*Secure well cap,
*Make sure well cap is properly installed to keep out
weather, bugs and animals,
*Keep wellhead area free from potential sources of
contamination like pesticide use, chemical and fuel
storage, and animal waste,
*Protect wellhead from vandalism,
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*
* Know when samples are due. (Refer to your Annual
Required Testing form.),
* Take samples on time and deliver to laboratory on time,
* Take samples at designated sampling site,
* Take samples properly. Make sure to disinfect the faucet
for bacteria samples and take care not to touch the
inside of the sample bottles or rinse them out,
* Sample early in your compliance period!!!
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*
* Monitor chlorine residuals & report them on Monthly Operating
Reports (MOR’s),
* Submit MOR’s monthly to the DWP by the 10th day of the
following month,
* Check to make sure treatment system is in good operating
condition & labeled,
* Have treatment system serviced on a regular basis and keep
maintenance logs,
* Use only chemicals certified to NSF/ANSI
Standard 60,
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*Monthly Operating Reports (MOR)
*If you add a chemical or use UV,
*Due by the 10th day of the following
month,
*MOR templates can be found on the
DWP website: Monthly Operating Reports
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*
* Check for cross connections,
* Install vacuum breakers on hose bibs,
* Check for leaks,
* Secure storage tank and screen the vent and overflow,
* Look for dramatic changes in pressure within your
water system which could indicate a problem,
* Properly disinfect your water system after any repairs,
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Reminder the RULES RELATING TO
DRINKING WATER require:
1. Unless a shorter period is specified, the results of
tests, measurements, and analyses required by Sections
7, 8 and 9 of these regulations shall be reported by the
tenth day of the month following the month in which
the samples were analyzed.
2. All reports of laboratory analyses for compliance
purposes must be submitted to the Department by the
certified laboratory contracted by the public water
system to analyze the samples.
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Maine In-state Commercial Drinking Water Labs
NOTE: A complete list of all labs certified by Maine is available at All Certified Laboratories (xls file)
Lab Code
A&L
BWDL
CLWR
MEWTR
Name of Lab
A & L Laboratory
Brewer Water Department Laboratory
(Lab is located at the Water Treatment Plant)
ClearWater Laboratory (A Division of Acheron Engineering)
Maine Water Company - Mirror Lake Laboratory
Website
http://www.allaboratory.com/
http://www.brewermaine.gov/waterdepartment/water-testing-lab/
http://www.acheronengineering.com/Environm
ental%20Lab.htm
http://www.mainewater.com/en/About%20Us/L
ab%20Services.aspx
City
State
Telephone
Auburn
ME
(207) 784-5354
Holden
ME
(207) 843-7182
Newport
ME
(207) 368-5786
Rockport
ME
(207) 236-8428
Wiscasset
ME
207) 882-5476
Augusta
ME
(207) 287-2727
Scarborough
ME
(207) 874-2400
Yarmouth
ME
(207) 846-6569
Kennebunk
ME
(207) 467-3478
Portland
ME
(207) 878-6481
Winslow
ME
(207) 873-7711
South Paris
ME
(207) 743-5134
www.waterqualityservicesme.com
MEC
HETL
KTHDN
MEENV
NLSON
NELAB
NELAB
PARIS
Maine Coast Laboratory
(DBA Water Quality & Compliance Services Inc.)
Health and Environmental Testing Laboratory
Katahdin Analytical Services
Maine Environmental Laboratory
Nelson Analytical Lab
Northeast Laboratory Services - Portland
Northeast Laboratory Services
Paris Utility District Laboratory
http://www.maine.gov/dhhs/mecdc/publichealth-systems/health-and-environmentaltesting/standard.htm
http://www.katahdinlab.com
http://maineenvironmentallaboratory.com/
http://www.nelsonanalytical.com
www.nelabservices.com.
www.nelabservices.com
N/A
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*
List of Labs & Annual Required
Monitoring Sheets, Can be found
at www.medwp.com.
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*Pre-Compliance Phone calls
and Emails!
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*
* Routine bacteria samples should be taken from
a site listed on sampling plan,
* DWP Field Inspectors will verify your sample
locations during a sanitary survey,
* Routine bacteria sample site(s) should be
representative of the distribution system,
Not from the well building!
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*Bacteria
*Sterile Bottle,
*Remove aerator and
disinfect end of faucet,
*Sodium Thio-Sulfate to
neutralize chlorine,
*Do not rinse out bottle,
*Do not touch inside of
bottle or cap with fingers,
*Need 100ml of sample,
*30 hour hold time,
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Depending on where you are first
class US Mail is now a 2 – 3 day
service.
No matter which lab you are using,
bacteria and nitrate samples will
have to be rejected if they do not
make it to the laboratory within 30
hours for bacteria and 48 hours for
nitrates.
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*Bacteria Sampling Locations
*It is recommended to collect bacteria water
sample’s at a fixed bathroom faucet with the
aerator removed, (Hose bibs and kitchen
faucets with swivel arms are not recommended
locations for bacteria sampling).
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*BACTERIA CHAIN OF CUSTODY
REQUIRED INFORMATION
* PWSID Number,
* System Name, Address,
* Contact name & Phone #,
* Collection Date & Time for each sample,
* Sample location (kitchen faucet; bar sink; raw water
tap; etc…),
* Chlorine Residual,
Reminder: All CWS & NTNC systems that chlorinate must
take and record chlorine residuals for any Total Coliform
bacteria sample.
* Signature,
*Is this a compliance sample?
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*COMMON PROBLEMS
WHEN LAB RECEIVES
SAMPLES
*Paperwork not filled out completely, especially
collection date and time.
*Wrong sample date (future date).
*Not enough sample volume.
*Compliance forms not signed.
*Sample collected one day, but not mailed until the
following day.
*Paperwork not returned with sample.
*Air bubbles in Vials,
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*
There are no labs in Maine that analyze
these contaminants…
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*
Raw Water sampling port,
Before any treatment,
Before any storage,
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*LEAD & COPPER
* 1 liter container
* Water must sit motionless in
plumbing for minimum of 6
hours
* Collect as 1st Draw by placing
open container under faucet
then turn on faucet to collect
first draw of water
* Record date and time the
water was last used and the
date and time the water
was collected on the
141A form and the chain
of custody form(s)
*14 day hold time
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*Reminder:
*Lead & Copper sample collection: Most
systems on annual and triennial
samples need to be collected June,
July, August, or September.
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*VOC TEST KIT
*(3) 40ml voa vial’s
with septa cap
treated with ascorbic
acid
*(3) small plastic tubes
of Hydrochloric Acid
*(1) Trip Blank
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*WHAT IS A TRIP BLANK?
*Trip Blank: Is a clean sample shipped from the
laboratory to the sampling site and transported
back to the laboratory without having been
exposed to sampling procedures.
*Purpose: Assess contamination introduced during
shipping and field handling procedures.
*DO NOT OPEN TRIP BLANKS! Just return to the lab
with your sample.
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*VOC SAMPLING
*
*
Remove any screen, hoses and aerators from end of faucet.
*
Turn water down to a flow rate slow enough so you can
collect the samples without splashing.
*
Remove cap from vial. Do not allow inside of cap, inside of
bottle, or bottle threads to be touched by any object. The
vials contain a small amount of white powder. This is
ascorbic acid used to dechlorinate the sample.
*
Run the water into the bottle until it is ¼” from full. Fill the
other two vials in the same manner.
Run COLD water for 3 to 5 minutes to make sure water has
not been sitting for a long time in pipes or tanks and is fresh
from the well.
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*So you missed a sample!
*Now what?
*You sampled but your lab did not
send the results in!
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*
* Effective April 1, 2016,
* MCL Violations will be based on E.coli results,
* Positive TC samples require a Level 1 Assessment,
* Positive Total Coliform trigger a treatment technique violation
if???
* Positive E.C require a Level 2 Assessment,
* Public Notice required for E.coli violation, failure to conduct
assessment, failure to correct sanitary defects,
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*
* Public Notice required for E.coli violation, failure to conduct
assessment, failure to correct sanitary defects,
* All Community systems on Monthly,
* All Non-community systems on Quarterly,
* Seasonal system on monthly,
* Seasonal systems have to have a start up plan,
* And certify annually the start up plan has been completed.
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*
* NC Systems need satisfactory 12 month history to go back to
quarterly and no sanitary defects,
* All systems required to collect 3 rechecks for each positive
sample,
* Systems on quarterly collect 3 samples the next month,
* All systems need to have a bacteria sampling plan..
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SECTION 3 FACILITIES APPROVAL
No new construction, addition, or alteration
involving the source, treatment, or storage of water
in any system shall be commenced until the plans
and specifications have been submitted to and
approved in writing by the DWP.
Allow 30 days for approvals
Changes in treatment processes which involve
the addition or deletion of any chemicals require
prior approval by the Department.
DWP Compliance Staff
• Darren Brann
287-5545
• Jennifer Grant
287-3962
• Jed Haws
287-8402
• Jason Pushard
287-8487
• Bill Wallace
287-1979
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Questions?
Carlton Gardner
Maine Drinking Water Program
207-287-8403
[email protected]
www.medwp.com
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