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© 2013 PerkinElmer, Inc. All rights reserved.
Unregulated Contaminant Monitoring Rule (UCMR 3) Why, What and How?
Paul D. Krampitz
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UCMR History and Background
Unregulated Contaminant Monitoring Rule (UCMR)
Part of The Safe Drinking Water Act (SDWA) of 1996
Requires that once every five years, a new list of < 30 unregulated contaminants be monitored by Public Water Systems (PWS)
UCMR 1 – September 17, 1999
UCMR 2 – January 4, 2007
UCMR 3 – May 2, 2012
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Why was UCMR Developed?
Based on occurrence and health risk factors
Developed in coordination with the Contaminant Candidate List (CCL).
CCL is a list of contaminants not regulated by the National Primary Drinking Water Regulations
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UCMR 3 Requirements
UCMR 3 requires PWS to monitor for 28 chemicals and 2 viruses
under each of the following lists
Assessment Monitoring (List 1 Contaminants)
Screening Survey (List 2 Contaminants)
Pre-Screen Testing (List 3 Contaminants)
Associated inorganic methods: 200.8 Rev. 5.4, ASTM D 5673-10, Standard Methods 3125, excluding Cr 6+
4
Assessment Monitoring
Common methods for drinking water labs
All PWS serving more than 10,000 people
800 representative labs serving less than 10,000 people
Will monitor for 21 List 1 contaminants during a period from January 2013 to December 2015
5
Screening Survey
Using methods not common for drinking water labs
PWS serving more than 100,000 people
320 representative labs serving 10,000 to 100,000 people
480 representative labs serving less than 10,000
7 List 2 contaminants from January 2013 to December 2015
6
Pre – Screen Testing
Uses newer technology not common in most drinking water labs
800 representative PWS serving less than 1000 people that do not disinfect
These are PWS with wells in areas of Karstor or fractured bedrock
2 contaminants from List 3 viruses
7
UCMR 3 EPA Lab Approval Program
Labs must complete and submit for method specific application packages
Results will be under review from the EPA
Approved labs will be eligible for PT testing
Successful labs will be granted approval
EPA will pay for all samples tested
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UCMR 3 Approved Labs – Midwest – 200.8
State Hygenic Lab - Ankeny, Iowa
American Water Central Lab - Belleville, Illinois
UL LLC - South Bend, Indiana
ALS Environmental Division - Holland, Michigan
National Testing Labs - Ypsilanti, Michigan
MO DNR - Jefferson City, Missouri
Summit Environmental - Cuyahoga Falls, Ohio
Alloway Testing - Marion, Ohio
Northern Lake Testing - Crandon, Wisconsin
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UCMR 3 Approved Labs – East - 200.8
Orange County Utilities Orlando, FL
Pace Analytical Ormond Beach, FL
Enviro-Chem Sparks, MD
Suffolk County Water Hauppauge, NY
Aqua Pennsylvania Bryn Mawr, PA
Microbac Harrisburg, PA
ALS – Middletown Middletown, PA
Suburban Water Testing Reading, PA
Kirby Memorial Health Wilkes-Barre, PA
10
UCMR 3 Approved Labs – West – 200.8
Arkansas DOH Little Rock, AR
City of Phoenix Phoenix, AZ
City of Tempe Tempe, AZ
Orange County Water Fountain Valley, CA
BSK Associates Fresno, CA
Weck Laboratory Industry, CA
Eurofins Monrovia, CA
Los Angeles DWP Pasadena, CA
McCampbell Analytical Pittsburg, PA
Basic Laboratory Redding, CA
Edward S, Babcock and Sons Riverside, CA
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UCMR 3 Approved Labs
For a complete listing of the UCMR3 laboratories please visit the USEPA website at http://www.epa.gov and search for UCMR3.
As of December 27, 2012 , 53 laboratories were listed as approved
Only the labs approved for 200.8 have been listed on the previous slides. The remainder of the labs are approved for other methods.
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Summary of UCMR 3 EPA Methods
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Analysis UCMR 3 EPA Methods
Six metals:
V, Mo, Co, Sr, Cr, Cr6*
200.8 Rev 5.4
Volatile Organics 524.3
Synthetic Organic
Compound
522
Cr 6
218.7
Chlorate 300.1
Perfluorinated
Compounds
537 Rev 1.1
Hormones 539
Viruses 1615
Cr6 method is separate from 200.8. If total Cr is <limit, speciation is not required
IDC Performance Criteria
Initial Demonstration of UCMR 3 Capability (IDC)
Can be found in Section 5 of the EPA UCMR 3 Laboratory Approval Requirements and Information Document – Version 2.0, January 2012
Low system background
Precision
Accuracy
MRL (Method Required Limits) demonstration
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Low System Background
Laboratory Reagent Blank (LRB) must be less than 1/3 to 1/2 of the MRL for each analyte. Recommended masses and MRL’s are listed below:
In, Sc, and Tb are the recommended internal standards
15
Mass MRL (ppb)
Cr 52 0.2
Co 59 1.0
Mo 98 1.0
Sr 88 0.3
V 51 0.2
Precision
A Laboratory Fortified Blank (LFB) is prepared
This is typical 0.2 % HNO3 spiked with the five analytes at 2 – 5 times the MRL (listed on the previous slide)
This solution is then run 4 -7 individual times
The % RSD is then calculated and should be <10%
16
Accuracy
Using the data from the precision run, calculate the average recovery
The recovery for each of the analytes should be +/- 15%
17
Minimum Reporting Level (MRL)
Minimum Reporting Levels need to be validated for each of the analytes: Cr, Co, Mo, Sr, and V
18
Summary of UCMR3
The UCMR3 is a relatively new EPA methodology that basically has been added to the Safe Drinking water act of 1996.
UCMR3 includes both inorganic and organic contaminants from the CCL found to have heath risks associated with them and are or could be found in drinking water supplies.
All contaminants listed have an associated EPA method that needs to be followed for approval
UCMR3 has different terminology associated with it as well as different ways of numerically validating the data: Noise, precision, accuracy, and MRL’s
Purpose of the presentation was to get familiar with the method, new terminology and validation procedures
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