---
kind: "section"
citation: "40 C.F.R. § 142.303"
title: "40"
number: "142.303"
heading: "Which size public water systems can receive a small system variance?"
url: "https://uscodex.org/cfr/40/142.303"
---

# §142.303. Which size public water systems can receive a small system variance?

- (a) A State exercising primary enforcement responsibility for public water systems (or the Administrator for other systems) may grant a small system variance to public water systems serving 3,300 or fewer persons.
- (b) With the approval of the Administrator pursuant to [§ 142.312](/cfr/40/142.312.md), a State exercising primary enforcement responsibility for public water systems may grant a small system variance to public water systems serving more than 3,300 persons but fewer than 10,000 persons.
- (c) In determining the number of persons served by the public water system, the State or Administrator must include persons served by consecutive systems. A small system variance granted to a public water system would also apply to any consecutive system served by it.

## Notes

### Source

Source: 63 FR 43848, Aug. 14, 1998, 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: 41 FR 2918, Jan. 20, 1976, unless otherwise noted.