Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-11 - CONTROL OF LEAD AND COPPER › Section 335-7-11-.05 - Repeat Monitoring Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Systems monitoring on a yearly basis
				shall use the number of reduced monitoring sites shown in Table 11-1. All
				monitoring must be taken from previous sites and must be collected during June,
				July, August, or September of that year unless the water system receives
				written approval from the Department for an alternative monitoring
				period.
(2) After three consecutive
				years of demonstrating satisfactory action levels, a small or medium water
				system may reduce monitoring to once every three years.
(3) After three consecutive years of
				demonstrating satisfactory action levels and maintaining the range of values
				for the water quality control parameters reflecting optimal corrosion control
				treatment specified by the Department, any water system may reduce monitoring
				sites and frequency of monitoring to once every three years with written
				approval from the Department.
(4) A
				system with a 90th percentile level less than or equal to .005 mg/L for lead
				and 0.65 mg/L for copper for two consecutive six-month periods may reduce
				monitoring to once every three years.
(5) Any system exceeding a lead or copper
				compliance limit shall increase monitoring consistent with the initial
				monitoring compliance requirements. Monitoring must be collected from the
				initial sites and monitoring must take place during six-month compliance cycles
				(January - June or July - December) until compliance is achieved. Monitoring
				shall begin with the next available compliance cycle after the exceedance
				occurred. If optimum corrosion control treatment or source water treatment is
				initiated by the system, monitoring during six-month compliance cycles must
				continue for two six-month periods after the treatment has been installed
				demonstrating compliance with the compliance limits.
(6) Any system that fails to operate at or
				above the minimum value or within the range of values for the water quality
				parameters specified by the Department for more than nine days in any six-month
				period shall increase monitoring consistent with the initial monitoring
				compliance requirements. Monitoring must be conducted utilizing the initial
				monitoring sites and monitoring must take place during six-month compliance
				cycles January - June or July - December) until compliance is achieved.
				Monitoring shall begin with the next available compliance cycle after the
				exceedance occurred.
(7) A system
				may be allowed to monitor during months other than June, July, August and
				September. The alternate monitoring period shall be no longer than four months
				in duration when the highest lead levels are likely to occur. Systems
				monitoring annually must conduct their next round of monitoring during a time
				period that ends no later than 21 months after the previous round of
				monitoring. Systems monitoring every three years must conduct their next round
				of monitoring during a time period that ends no later than 45 months after the
				previous round of monitoring.
Author:
Joe Alan Power
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-22A-5,
					 22-22A-6,
					 22-23-33.