California Code of Regulations › Title 22 - Social Security › Division 4 - Environmental Health › Chapter 17 - Surface Water Treatment › Article 6 - Reporting › Section 64663 - State Board Notification

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
A supplier shall notify the State Board as soon as
					 possible, but no later than by the end of the next business day, or within 24
					 hours, whichever is less, by telephone or other equally rapid means
					 whenever:
(a) A combined filter
				  effluent turbidity exceedance occurs pursuant to table 64663:
Table 64663
Combined Filter Effluent Turbidity Exceedances
					 Requiring State Board Notification
If a supplier
							 uses...
And the turbidity of the combined filter
							 effluent monitored and recorded pursuant to section
							 64655...
(1) Any filtration technology pursuant to section
							 64653
Exceeds 5.0 NTU at
							 any time.
(2) Conventional or direct filtration treatment and
							 serves 10,000 or more persons
(A) Exceeds 1 NTU for more than one
							 continuous hour;
(B) Exceeds 1 NTU at four-hour intervals;
							 or
(C) Exceeds 1.0 NTU for more than eight
							 consecutive hours.
(3) Conventional or direct filtration treatment and
							 serves fewer than 10,000 persons
(A) For a supplier using a grab sample
							 monitoring program:
1. Exceeds 1 NTU; or
2. Exceeds 1.0 NTU in more than two
							 consecutive samples taken every four hours; and
(B) For a supplier using a continuous
							 monitoring program:
1. If recording results at least once every
							 15 minutes, equals paragraph (2)(A); or
2. Equals paragraph (2)(B) or (2)(C).
(4) Diatomaceous earth or slow sand
							 filtration
Exceeds 1.0 NTU in more than two consecutive samples taken
							 every four hours.
(5) An alternative filtration technology pursuant to
							 section 64653
Exceeds the maximum
							 performance standard established pursuant to sections
							 64653(e), (f), (g), and
							 (h).
(b)
				  There is a failure to maintain a minimum disinfectant residual of 0.2 mg/L in
				  the water being delivered to the distribution system. The supplier shall report
				  whether or not the disinfectant residual was restored to at least 0.2 mg/L
				  within four hours.
(c) An event
				  occurs which may affect the ability of the treatment plant to produce a safe,
				  potable water including but not limited to spills of hazardous materials in the
				  watershed and unit treatment process failures.
(d) For a supplier avoiding filtration, the
				  turbidity immediately prior to the first or only point of disinfectant
				  application exceeds 5 NTU.
(e) A
				  supplier discovers the occurrence of an acute infectious illness that may be
				  potentially attributable to the water system.
1. New
					 section filed 5-6-91; operative 6-5-91 (Register 91, No. 25).
2.
					 Amendment of first paragraph and subsection (c), new subsections (e) and (f),
					 and amendment of NOTE filed 6-8-98; operative 7-8-98 (Register 98, No.
					 24).
3. Amendment of subsections (a) and (b) and NOTE filed
					 12-13-2007; operative 1-12-2008 (Register 2007, No. 50).
4.
					 Amendment of section and NOTE filed 5-22-2013; operative 7-1-2013 (Register
					 2013, No. 21).
5. Change without regulatory effect amending section
					 heading, first paragraph, heading for Table 64663 and NOTE filed 6-2-2015
					 pursuant to section
					 100, title 1, California Code of
					 Regulations (Register 2015, No. 23).
Note: Authority cited: Sections
						116271,
						116350
						and
						116375,
						Health and Safety Code. Reference: Sections
						116350,
						116375,
						116450
						and
						116460,
						Health and Safety Code.