Rulemaking

Unregulated Contaminant Monitoring Regulation for Public Water Systems; Analytical Methods for Perchlorate and Acetochlor; Announcement of Laboratory Approval and Performance Testing (PT) Program for the Analysis of Perchlorate

🏛 Environmental Protection Agency (EPA)EPA-HQ-OW-1999-2874

Chemical & Toxic Substances Public Health Infrastructure & Data Water Quality & Infrastructure

Documents

Total comments

all analyzed

Comment status

Closed

Last activity

Sep 28, 2004

In this docket

Documents

Rules, notices, and supporting material — the primary rule pinned first.

All 10 Supporting & Related Material 9

📄 Primary document

Supporting & Related MaterialJul 20, 2026

U.S. EPA. 1999. Office of Solid Waste and Emergency Response. Method 9058. Determination of Perchlorate Using Ion Chromatography with Chemical Suppression Conductivity Detection. Sep. 1999 [W-99-19-I-B-10]

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Supporting & Related Material· Jul 20, 2026
State of California. Dept. of Health Services. Sanitation & Radiation Laboratories Branch. Determination of Perchlorate by Ion Chromatography. June 3, 1997 [W-99-19-I-B-5]→
Supporting & Related Material· Jul 20, 2026
USEPA. 2000. Supplement A to the Unregulated Contaminant Monitoring Regulation Analytical Methods and Quality Control Manual. Office of Water. Washington, DC. March. EPA # 815-R-00-002 [W-99-19-I-F-1]→
Supporting & Related Material· Jul 20, 2026
U.S. EPA. Office of Water. Supplement to the Unregulated Contaminant Monitoring Regulation Analytical Methods and Quality Control Manual. December 1999. EPA 815-R-00-002 [W-99-19-I-B-12]→
Supporting & Related Material· Jun 22, 2026
Form for Compliance with E.O. 12866 Docket Requirements [W-99-19-I-C-1]→
Supporting & Related Material· Jun 22, 2026
Dionex. Analysis of Low Concentrations of Perchlorate in Drinking Water and Ground Water by Ion Chromatography. Application Note 121 [W-99-19-I-B-2]→
Supporting & Related Material· Jun 22, 2026
APHA. American Public Health Association. Standard Methods for the Examination of Water and Wastewater. 20th Edition. 1998. Method 6200 C. Purge and Trap Capillary-Column Gas Chromatographic Method [W-99-19-I-B-1]→
Supporting & Related Material· Jun 22, 2026
Congressional Receipt Letters: U.S. GAO, U.S. Senate, & U.S. House of Representatives. Feb. 24, 2000. FRL #6544-6 [W-99-19-I-E-1]→
Supporting & Related Material· Jun 22, 2026
U.S. EPA. 1999. Office of Ground Water and Drinking Water. Technical Support Center Comment Response to Peer Review of Memorandum Titled “Documentation of Agency Decisions Concerning the Analyses of Acetochlor in the Unregulated Contaminant Monitoring Regulation. Nov. 17, 1999 [W-99-19-I-B-7]→