Compilation of Rules and Regulations of the State of Georgia › Department 391 - RULES OF GEORGIA DEPARTMENT OF NATURAL RESOURCES › Chapter 391-3 - ENVIRONMENTAL PROTECTION › Subject 391-3-5 - RULES FOR SAFE DRINKING WATER › Rule 391-3-5-.25 - Treatment Techniques, Lead and Copper Requirements

Current
				through Rules and Regulations filed through June 27, 2024
(1)
General Requirements
.
(a) These requirements constitute the primary
				drinking water rules for lead and copper. Unless otherwise indicated, each of
				these provisions applies to community water systems and non-transient,
				non-community water systems (hereinafter referred to as "water systems" or
				"systems").
(b) These rules
				establish a treatment technique that includes requirements for corrosion
				control treatment, source water treatment, lead service line replacement, and
				public education. These requirements are triggered, in some cases, by lead and
				copper action levels measured in samples collected at consumers'
				taps.
(c) Lead and copper action
				levels:
1. The lead action level is exceeded
				if the concentration of lead in more than 10 percent of tap water samples
				collected during any monitoring period conducted in accordance with paragraph
				(7) is greater than 0.015 mg/L.
2.
				The copper action level is exceeded if the concentration of copper in more than
				10 percent of tap water samples collected during any monitoring period
				conducted in accordance with paragraph (7) is greater than 1.3 mg/L.
3. Calculation of the lead and copper action
				levels shall be based on the "90th percentile" rule in accordance with
				40 CFR §
												141.80(c)(3).
(d) Corrosion control treatment
				requirements:
1. All water systems shall
				install and operate optimal corrosion control treatment as defined in Rule
				391-3-5-.02(73).
2. Any water system that complies with the
				applicable corrosion control treatment requirements specified by the Division
				under paragraphs (2) and (3) shall be deemed in compliance with the treatment
				requirement contained in paragraph (d)(1).
(e) Source water treatment requirements; Any
				system exceeding the lead or copper action level shall implement all applicable
				source water treatment requirements specified by the "Division" under paragraph
				(4).
(f) Lead service line
				replacement requirements; Any system exceeding the lead action level after
				implementation of applicable corrosion control and source water treatment
				requirements shall complete the lead service replacement requirements contained
				in paragraph (5).
(g) Public
				education requirements; Pursuant to
				40 CFR §
											141.85, all water systems must provide a
				consumer notice of lead tap water monitoring results to persons served at the
				sites/taps that are tested. Any system exceeding the lead action level shall
				implement the public education requirements contained in paragraph
				(6).
(h) Monitoring and analytical
				requirements; Tap water monitoring for lead and copper, monitoring for water
				quality parameters, source water monitoring for lead and copper, and analyses
				of the monitoring results under this subpart shall be completed in compliance
				with paragraphs (7) - (10).
(i)
				Reporting requirements; Systems shall report to the Division any information
				required by the treatment provisions of this subpart and Rule
				391-3-5-.30(7).
(j) Record keeping requirements; Systems
				shall maintain records in accordance with Rule
				391-3-5-.15.
(k) Violation of national primary drinking
				water regulations; Failure to comply with the applicable requirements of
				paragraphs (1) - (10), including requirements established by the Division
				pursuant to the provisions, shall constitute a violation of the national
				primary drinking water regulations for lead and/or copper.
(l) The maximum contaminant level goals
				(MCLGs) for lead and copper are as follows:
Contaminant
MCLG (mg/L)
Copper
1.3
Lead
0 (zero)