California Code of Regulations › Title 22 - Social Security › Division 4 - Environmental Health › Chapter 15 - Domestic Water Quality and Monitoring Regulations › Article 12 - Best Available Technologies (BAT) › Section 64447.2 - Best Available Technologies (BATs)-Inorganic Chemicals

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The technologies listed in table 64447.2-A are the best
					 available technology, treatment techniques, or other means available for
					 achieving compliance with the MCLs in table 64431-A for inorganic
					 chemicals.
Table 64447.2-A
Best Available Technologies (BATs) Inorganic
					 Chemicals
Chemical
Best Available Technologies
							 (BATs)
Aluminum
10
Antimony
2, 7
Arsenic
1, 2, 5, 6, 7, 9, 13
Asbestos
2, 3, 8
Barium
5, 6, 7, 9
Beryllium
1, 2, 5, 6, 7
Cadmium
2, 5, 6, 7
Chromium
2, 5, 6a, 7
Cyanide
5, 7, 11
Fluoride
1
Hexavalent chromium
2d, 5, 7
Mercury
2b, 4,
							 6b, 7b
Nickel
5, 6, 7
Nitrate
5, 7, 9
Nitrite
5, 7
Perchlorate
5, 12
Selenium
1, 2c, 6, 7, 9
Thallium
1, 5
__________
a BAT for
							 chromium III (trivalent chromium) only.
b BAT only if
							 influent mercury concentrations <10 µg/L.
c BAT for
							 selenium IV only.
Key to BATs in table 64447.2-A:
1 = Activated Alumina
2 = Coagulation/Filtration (not BAT for systems <500
					 service connections)
3 = Direct and Diatomite Filtration
4 = Granular Activated Carbon
5 = Ion Exchange
6 = Lime Softening (not BAT for systems <500 service
					 connections)
7 = Reverse Osmosis
8 = Corrosion Control
9 = Electrodialysis
10 = Optimizing treatment and reducing aluminum
					 added
11 = Chlorine oxidation
12 = Biological fluidized bed reactor
13 = Oxidation/Filtration
1. New
					 section filed 9-8-94 as an emergency; operative 9-8-94 (Register 94, No. 36). A
					 Certificate of Compliance must be transmitted to OAL by 1-6-95 or emergency
					 language will be repealed by operation of law on the following day. For prior
					 history, see Register 88, No. 51.
2. New section refiled 1-3-95 as
					 an emergency; operative 1-3-95 (Register 95, No. 1). A Certificate of
					 Compliance must be transmitted to OAL by 5-3-95 or emergency language will be
					 repealed by operation of law on the following day.
3. New section
					 refiled 4-26-95 as an emergency; operative 4-26-95 (Register 95, No. 17). A
					 Certificate of Compliance must be transmitted to OAL by 8-24-95 or emergency
					 language will be repealed by operation of law on the following
					 day.
4. Certificate of Compliance as to 4-26-95 order including
					 amendment of section heading, first paragraph and Table 64447.2-A transmitted
					 to OAL 5-5-95 and filed 6-19-95 (Register 95, No. 25).
5. Amendment
					 of Table and NOTE filed 4-17-2000; operative 5-17-2000 (Register 2000, No.
					 16).
6. Amendment of section and NOTE filed 9-18-2007; operative
					 10-18-2007 (Register 2007, No. 38).
7. Amendment of Table 64447.2-A
					 and amendment of NOTE filed 10-29-2008; operative 11-28-2008 (Register 2008,
					 No. 44).
8. Amendment of section and NOTE filed 5-28-2014; operative
					 7-1-2014 (Register 2014, No. 22).
9. Change without regulatory
					 effect amending Table 64447.2-A filed 9-11-2017 pursuant to section
					 100, title 1, California Code of
					 Regulations (Register 2017, No. 37).
Note: Authority cited: Sections
						116293(b),
						116350,
						116375,
						131052
						and
						131200,
						Health and Safety Code. Reference: Section
						116370,
						Health and Safety Code.