---
kind: "section"
citation: "40 C.F.R. § 141.705"
title: "40"
number: "141.705"
heading: "Approved laboratories."
url: "https://uscodex.org/cfr/40/141.705"
---

# §141.705. Approved laboratories.

- (a) **Cryptosporidium.** Systems must have Cryptosporidium samples analyzed by a laboratory that is approved under EPA's Laboratory Quality Assurance Evaluation Program for Analysis of Cryptosporidium in Water or a laboratory that has been certified for Cryptosporidium analysis by an equivalent State laboratory certification program.
- (b) **E. coli.** Any laboratory certified by the EPA, the National Environmental Laboratory Accreditation Conference or the State for total coliform or fecal coliform analysis under [§ 141.74](/cfr/40/141.74.md) is approved for E. coli analysis under this subpart when the laboratory uses the same technique for E. coli that the laboratory uses for [§ 141.74](/cfr/40/141.74.md).
- (c) **Turbidity.** Measurements of turbidity must be made by a party approved by the State.

## Notes

### Source

Source: 71 FR 769, Jan. 5, 2006, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11.

### Source

Source: 40 FR 59570, Dec. 24, 1975, unless otherwise noted.