Chapter 04 — Safe Drinking Water
154 sections in this chapter.
25-04-A.S.A.C. § 25.0420.203 Tier 2 Public Notice – Form, Manner, and Frequency of Notice
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The provisions of 40 Code of Federal Regulations § 141.203 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.204 Tier 3 Public Notice – Form, Manner, and Frequency of Notice
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The provisions of 40 Code of Federal Regulations § 141.204 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.205 Content of the Public Notice
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The provisions of 40 Code of Federal Regulations § 141.205 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.206 Notice to New Billing Units or New Customers
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The provisions of 40 Code of Federal Regulations § 141.206 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.207 Special Notice of the Availability of Unregulated Contaminant Monitoring Results
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The provisions of 40 Code of Federal Regulations § 141.207 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.208 Special Notice for Exceedance of the SMCL for Fluoride
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The provisions of 40 Code of Federal Regulations § 141.208 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.209 Special Notice for Nitrate Exceedances Above MCL by Non-community Water Systems (NCWS), Where Granted Permission by the Primacy Agency Under 141.11(d)
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The provisions of 40 Code of Federal Regulations § 141.209 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.21 Coliform Sampling
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The provisions of 40 Code of Federal Regulations § 141.21 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.210 Notice by Primacy Agency on Behalf of the Public Water System
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The provisions of 40 Code of Federal Regulations § 141.210 as revised and codified as of July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.22 Turbidity Sampling and Analytical Requirements
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The provisions of 40 Code of Federal Regulations § 141.22 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.23 Inorganic Chemical Sampling Analytical Requirements
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The provisions of 40 Code of Federal Regulations § 141.23 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.24 Organic Chemicals Sampling and Analytical Requirements
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The provisions of 40 Code of Federal Regulations § 141.24 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.25 Analytical Methods for Radioactivity
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The provisions of 40 Code of Federal Regulations § 141.25 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.26 Monitoring Frequency for Radioactivity in Community Water Systems
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The provisions of 40 Code of Federal Regulations § 141.26 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.27 Alternate Analytical Techniques
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The provisions of 40 Code of Federal Regulations § 141.27 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.28 Certified Laboratories
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The provisions of 40 Code of Federal Regulations § 141.28 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.29 Monitoring of Consecutive Public Water Systems
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The provisions of 40 Code of Federal Regulations § 141.29 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.3 Coverage
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These regulations shall apply to each public water system (PWS), unless the PWS meets all of the following conditions: (1) Consists only of distribution and storage facilities (and does not have any collection and treatment facilities); (2) Obtains all of its water from, but is n…
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.30 Total Trihalomethanes Sampling, Analytical and Other Requirements
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The provisions of 40 Code of Federal Regulations § 141.30 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.31 Reporting Requirements
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Except as expanded below, the provisions of 40 Code of Federal Regulations § 141.31 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.32 Public Notification
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Refer to sections 25.0601.201-25.0601.210 of these regulations for public notification requirements. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.33 Record Maintenance
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The provisions of 40 Code of Federal Regulations § 141.33 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.35 Reporting and Public Notification for Certain Unregulated Contaminants
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The provisions of 40 Code of Federal Regulations § 141.35 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.4 Variances and Exemptions
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AS-EPA removed the provisions relating to Variances and Exemptions from the American Samoa Safe Drinking Water Regulations, Title 25, Chapter 04. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.40 Monitoring Requirements for Unregulated Contaminants
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Public water systems must comply with provisions of 40 Code of Federal Regulations § 141.40. However, AS-EPA is not adopting 40 Code of Federal Regulations § 141.40 by reference because the Federal EPA enforces this regulation in coordination with AS-EPA. History: Rule 1-08, eff …
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.41 Special Monitoring for Sodium
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The provisions of 40 Code of Federal Regulations § 141.41 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.42 Special Monitoring for Corrosivity Characteristics
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The provisions of 40 Code of Federal Regulations § 141.42 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.43 Prohibition on Use of Lead Pipes, Solder, and Flux
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The provisions of 40 Code of Federal Regulations § 141.43 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.5 Siting Requirements and Plan Review
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The provisions of 40 Code of Federal Regulations §141.5 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.50 Maximum Contaminant Level Goals for Organic Contaminants
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The provisions of 40 Code of Federal Regulations § 141.50 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.501 Who is subject to the requirements of subpart T?
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The provisions of 40 Code of Federal Regulations § 141.501 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.502 When must my system comply with these requirements?
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The provisions of 40 Code of Federal Regulations § 141.502 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.503 What does subpart T require?
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The provisions of 40 Code of Federal Regulations § 141.503 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.51 Maximum Contaminant Level Goals for Inorganic Contaminants
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The provisions of 40 Code of Federal Regulations § 141.51 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.510 Is my system subject to the new finished water reservoir requirements?
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The provisions of 40 Code of Federal Regulations § 141.510 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.511 What is required of new finished water reservoirs?
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The provisions of 40 Code of Federal Regulations § 141.511 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.52 Maximum Contaminant Level Goals for Microbiological Contaminants
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The provisions of 40 Code of Federal Regulations § 141.52 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.520 Is my system subject to the updated watershed control requirements?
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The provisions of 40 Code of Federal Regulations § 141.520 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.521 What updated watershed control requirements must my unfiltered system implement to continue to avoid filtration?
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The provisions of 40 Code of Federal Regulations § 141.521 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.522 How does the State determine whether my system’s watershed control requirements are adequate?
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The provisions of 40 Code of Federal Regulations § 141.522 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.53 Maximum Contaminant Level Goals for Disinfection Byproducts
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The provisions of 40 Code of Federal Regulations § 141.53 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.530 What is a disinfection profile and who must develop one?
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The provisions of 40 Code of Federal Regulations § 141.530 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.531 What criteria must a State use to determine that a profile is unnecessary?
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The provisions of 40 Code of Federal Regulations § 141.531 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.532 How does my system develop a disinfection profile and when must it begin?
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The provisions of 40 Code of Federal Regulations § 141.532 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.533 What data must my system collect to calculate a disinfection profile?
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The provisions of 40 Code of Federal Regulations § 141.533 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.534 How does my system use this data to calculate an inactivation ratio?
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The provisions of 40 Code of Federal Regulations § 141.534 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.535 What if my system uses chloramines, ozone, or chlorine dioxide for primary disinfection?
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The provisions of 40 Code of Federal Regulations § 141.535 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.536 My system has developed an inactivation ratio; what must we do now?
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The provisions of 40 Code of Federal Regulations § 141.536 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.54 Maximum Residual Disinfectant Level Goals for Disinfectants
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The provisions of 40 Code of Federal Regulations § 141.54 as July 1, 2002, are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗25-04-A.S.A.C. § 25.0420.540 Who has to develop a disinfection benchmark?
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The provisions of 40 Code of Federal Regulations § 141.540 as revised and codified as of July 1, 2002 are hereby adopted by reference. History: Rule 1-08, eff 1 Jun 08.
Chapter 25-04Open chapter PDF ↗