30 CFR § 816.42 - Hydrologic balance: Water quality standards and effluent limitations.
---
identifier: "/us/cfr/t30/s816.42"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 816.42 - Hydrologic balance: Water quality standards and effluent limitations."
title_number: 30
title_name: "Mineral Resources"
section_number: "816.42"
section_name: "Hydrologic balance: Water quality standards and effluent limitations."
chapter_name: "OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "K"
subchapter_name: "PERMANENT PROGRAM PERFORMANCE STANDARDS"
part_number: "816"
part_name: "PERMANENT PROGRAM PERFORMANCE STANDARDS—SURFACE MINING ACTIVITIES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 1201 and sec 115 of Pub. L. 98-146."
regulatory_source: "44 FR 15395, Mar. 13, 1979, unless otherwise noted."
cfr_part: "816"
---
# 816.42 Hydrologic balance: Water quality standards and effluent limitations.
Discharges of water from areas disturbed by surface mining activities shall be made in compliance with all applicable State and Federal water quality laws and regulations and with the effluent limitations for coal mining promulgated by the U.S. Environmental Protection Agency set forth in 40 CFR part 434.
[47 FR 47222, Oct. 22, 1982, as amended at 48 FR 44051, Sept. 26, 1983; 81 FR 93392, Dec. 20, 2016; 82 FR 54979, Nov. 17, 2017]