Checklist for Beginning Grandfathered Cryptosporidium Monitoring
~	Sampling location. Does the intended sample collection location comply with the guidance
provided in Section 6.2 of the LT2 rule source water monitoring guidance manual?
~	Sampling schedule. Is the sample collection schedule designed to monitor for
Cryptosporidium at least monthly, and in accordance with the guidance provided in Section
6.3 of the LT2 rule source water monitoring guidance manual?
~	Laboratory coordination. Have you verified that your intended sample collection schedule
can be accommodated by the Cryptosporidium laboratory (to avoid holding time problems)?
~	Matrix spikes. Does the sampling schedule include collection of extra volume for matrix
spike samples every 20 field samples?
~	Method version. Will the April 2001 version of EPA Method 1622 or EPA Method 1623 be
used to analyze samples?
~	Sample volume issues. Have you consulted with your Cryptosporidium laboratory to
determine whether your samples are likely to clog filters or require additional "subsample"
~	Cryptosporidium laboratory qualifications. Is your Cryptosporidium sample analysis
laboratory approved, or seeking approval, under EPA's Lab QA Program?
~	E. coli laboratory qualifications. Is your utility laboratory certified under the drinking
water certification program to perform the technique that the laboratory will be using to
analyze E. coli samples during Cryptosporidium monitoring (techniques include multiple-well,
membrane filtration, and multiple tube)? If the analyses will be performed by a commercial
laboratory, is the commercial laboratory certified to perform the technique?
~	Turbidity measurements. Will turbidity measurements be made for each sample?
~	Data reporting. Will your Cryptosporidium laboratory be recording all data elements
specified in Section 7.1 of the LT2 rule source water monitoring guidance manual?
June 2003