40 CFR § 142.310 - How can a person served by the public water system obtain EPA review of a State proposed small system variance?

---
identifier: "/us/cfr/t40/s142.310"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 142.310 - How can a person served by the public water system obtain EPA review of a State proposed small system variance?"
title_number: 40
title_name: "Protection of Environment"
section_number: "142.310"
section_name: "How can a person served by the public water system obtain EPA review of a State proposed small system variance?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "142"
part_name: "NATIONAL PRIMARY DRINKING WATER REGULATIONS IMPLEMENTATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
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."
regulatory_source: "41 FR 2918, Jan. 20, 1976, unless otherwise noted."
cfr_part: "142"
---


# 142.310 How can a person served by the public water system obtain EPA review of a State proposed small system variance?

(a) Any person served by the public water system may petition the Administrator to object to the granting of a small system variance within 30 days after a State proposes to grant a small system variance for a public water system.

(b) The Administrator must respond to a petition filed by any person served by the public water system and determine whether to object to the small system variance under § 142.311, no later than 60 days after the receipt of the petition.