California Code of Regulations › Title 22 - Social Security › Division 4 - Environmental Health › Chapter 15.5 - Disinfectant Residuals, Disinfection Byproducts, and Disinfection Byproduct Precursors › Article 6 - Reporting and Recordkeeping Requirements › Section 64537.2 - Disinfection Byproducts Reporting

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Systems shall report to the State Board the information
					 specified in tables 64537.2-A and 64537.2-B.
Table 64537.2-A Disinfection Byproducts
					 Reporting
If the system is monitoring
							 under the requirements of section
							 64534.2(a), (b), or
							 (c)
							 for...
The system shall
							 report...
TTHM and HAA5
(a) on a quarterly or more
							 frequent basis
(1) The number of samples taken during the last
							 quarter;
(2) The location, date, and
							 result of each sample taken during the last quarter;
(3) The arithmetic average of all
							 samples taken in the last quarter;
(4) The annual arithmetic average
							 of the quarterly arithmetic averages of the samples for the last four quarters;
							 and
(5) Whether, based on section
							 64535.2(b), the
							 MCL was violated.
(b) less frequently than quarterly (but at
							 least annually)
(1) The number of samples taken during the last
							 year;
(2) The location, date, and
							 result of each sample taken during the last monitoring period;
(3) The arithmetic average of all
							 samples taken over the last year; and
(4) Whether, based on section
							 64535.2(b), the
							 MCL was violated.
(c) less frequently than
							 annually
(1) The location, date, and result of the last sample taken;
							 and
(2) Whether, based on section
							 64535.2(b), the
							 MCL was violated.
Chlorite
(1) The number of entry
							 point samples taken each month for the last 3 months;
(2) The location, date, and
							 result of each sample (both entry point and distribution system) taken during
							 the last quarter;
(3) If a confirmation sample is
							 taken pursuant to section
							 64634.2(b)(4),
							 the average of an individual sample and its confirmation sample; and
(4) Whether, based on section
							 64535.2(d), the
							 MCL was violated, in which month it was violated, and how many times it was
							 violated in each month.
Bromate
(1) The number of samples
							 taken during the last quarter;
(2) The location, date, and
							 result of each sample taken during the last quarter;
(3) The arithmetic average of the
							 monthly arithmetic averages of all samples taken in the last year; and
(4) Whether, based on section
							 64535.2(c), the
							 MCL was violated.
Table 64537.2-B TTHM and HAA5 Reporting
If the system is monitoring under the
							 requirements of section
							 64534.2(d)
							 for...
The system shall
							 report...
TTHM and HAA5
(a) For each monitoring
							 location:
(1) The number of samples taken during the
							 last quarter;
(2) The date and results of each sample
							 taken during the last quarter;
(3) The arithmetic average of quarterly
							 results for the last four quarters (LRAA);
(4) Whether the LRAA calculated based on
							 fewer than four quarters of data would cause the MCL to be exceeded regardless
							 of the monitoring results of subsequent quarters;
(5) Whether, based on section
							 64535.2(e), the
							 MCL was violated at any monitoring location; and
(6) Any operational evaluation levels that
							 were exceeded during the quarter and, if so, the location and date, and the
							 calculated TTHM and HAA5 levels.
(b) For a supplier using approved surface
							 water and seeking to qualify for or remain on reduced TTHM/HAA5 monitoring,
							 source water TOC information for each treatment plant that treats approved
							 surface water:
(1) The number of source water TOC samples
							 taken each month during the last quarter;
(2) The date and result of each sample
							 taken during the last quarter;
(3) The quarterly average of monthly
							 samples taken during the last quarter or the result of the quarterly sample;
							 and
(4) The running annual average (RAA) of
							 quarterly averages from the past four quarters; and
(5) Whether the RAA exceeded 4.0 mg/L.
1. New
					 section filed 5-18-2006; operative 6-17-2006 (Register 2006, No.
					 20).
2. Amendment of section and NOTE filed 5-22-2012; operative
					 6-21-2012 (Register 2012, No. 21).
3. Change without regulatory
					 effect amending first paragraph 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,
						116385,
						116530
						and
						116555,
						Health and Safety Code.