Water: Long Term 2 Enhanced Surface Water Treatment Rule
Laws & RegulationsRegulatory InformationSafe Drinking Water ActLong Term 2 Enhanced Surface Water Treatment RuleLaboratory Certification for Analysis of Cryptosporidium under the Safe Drinking Water ActLaboratory Certification for Analysis of Cryptosporidium under the Safe Drinking Water Act
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The purpose of laboratory oversight is to identify laboratories that can reliably measure the occurrence of Cryptosporidium in surface water using approved methods.
For the first round (2006-2012) of Cryptosporidium monitoring under the Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR), EPA’s Office of Ground Water and Drinking Water (OGWDW) assumed responsibility for the approval and ongoing oversight of the laboratories that supported Public Water Systems (PWSs). In preparation for the second round of LT2ESWTR monitoring scheduled to begin in April 2015, OGWDW’s Technical Support Center (TSC) is working with EPA Regions and States to integrate Cryptosporidium laboratory approval/oversight into existing State certification/accreditation programs. State oversight of Cryptosporidium laboratories is provided for in the LT2ESWTR and is consistent with the laboratory oversight approach for all other regulated analytes. EPA Cryptosporidium laboratory approval granted by TSC does not carry over to the second round of LT2ESWTR Cryptosporidium monitoring that begins in 2015.
Laboratory Certification Process
Laboratories wishing to support the LT2ESWTR Cryptosporidium monitoring program during the second round will need to:
- Step 1: Send your request and laboratory contact information to the EPA Region in which your laboratory resides
- Step 2: Continue to successfully participate in two Cryptosporidium Proficiency Testing events per year for each approved method for which the laboratory seeks certification/accreditation.
| Region | States in Region | Contact |
|---|---|---|
| 1 | CT, NH, MA, ME, RI, VT | Jefferies.Ann@epa.gov |
| 2 | NY, NJ, PR, VI | Ringel.Donna@epa.gov |
| 3 | DC, DE, MD, PA, VA, WV | Slayton.Joe@epa.gov |
| 4 | AL, FL, GA, KY, MS, NC, SC, TN | Maycock.Marilyn@epa.gov |
| 5 | IL, IN, MI, MN, OH, WI | Alwan.Al@epa.gov |
| 6 | AR, LA, NM, OK, TX | Clark.Rayr@epa.gov Humphrey.Marvelyn@epa.gov |
| 7 | IA, KS, MO, NE | Marchin.Lawrence@epa.gov |
| 8 | CO, MT, ND, SD, UT, WY | Tidd.Marcie@epa.gov |
| 9 | AZ, CA, HI, NV | Lincoff.Andy@epa.gov |
| 10 | AK, ID, OR, WA | Dodo.Gerald@epa.gov |
States interested in integrating Cryptosporidium laboratory approval into their certification/accreditation program should:
- Step 1: Contact their Regional Certification Program to indicate their interest and request for nominations for participation in TSC’s next Certification Officer training course.
- Step 2: Familiarize themselves with the Cryptosporidium chapter (Chapter 7) in Supplement 2 to the Fifth Edition of the Manual for the Certification of Laboratories Analyzing Drinking Water.
Carrie Miller, Cryptosporidium Laboratory Technical Liaison
U.S. Environmental Protection Agency
Office of Ground Water and Drinking Water, Technical Support Center
26 West Martin Luther King Dr. (MS-140)
Cincinnati, Ohio 45268
Fax number: (513) 569-7191
E-mail: Carrie Miller (miller.carrie@epa.gov)
Certified Laboratories
Laboratories supporting the LT2ESWTR Cryptosporidium monitoring program during the second round
- Second-round Certified Laboratories - Coming in 2013!
Recommended Resources
- Cryptosporidium in Water: Reviewing Laboratory Reports (Video)
This video describes key review elements to increase one's understanding of laboratory reports and quality control for Cryptosporidium analyses. - Cryptosporidium Analysis: Using a Dispersant (Video)
This video demonstrates the new dispersant addition procedure, detailed in the recently published Method 1623.1, that improves Cryptosporidium recovery from difficult matrices. - Frequently Asked Questions: State Approval/Oversight of Cryptosporidium Laboratories Supporting LT2ESWTR Monitoring (PDF) (3 pp, 218K)
- Supplement 2 to the Fifth Edition of the Manual for the Certification of Laboratories Analyzing Drinking Water
- Training Modules for the Long Term 2 Enhanced Surface Water Treatment Rule
Methods
- EPA Method 1623.1, January 2012 (PDF) (83 pp, 1MB)
- EPA Method 1623, December 2005 (PDF) (75 pp, 1MB)
- EPA Method 1622, December 2005 (PDF) (75 pp, 1MB)