ontario regulation 373/15

made under the

Safe Drinking Water Act, 2002

Made: November 25, 2015
Filed: December 1, 2015
Published on e-Laws: December 2, 2015
Printed in The Ontario Gazette: December 19, 2015

Amending O. Reg. 169/03

(ONTARIO DRINKING WATER QUALITY STANDARDS)

1. (1) Schedule 2 to Ontario Regulation 169/03 is revoked and the following substituted:

Schedule 2
CHEMICAL STANDARDS

Item	Chemical Parameter	Standard (expressed as a maximum concentration in milligrams per litre)
1.	Alachlor	0.005
2.	Antimony	0.006
3.	Arsenic	0.025
4.	Atrazine + N-dealkylated metabolites	0.005
5.	Azinphos-methyl	0.02
6.	Barium	1.0
7.	Benzene	0.005
8.	Benzo(a)pyrene	0.00001
9.	Boron	5.0
10.	Bromate	0.01
11.	Bromoxynil	0.005
12.	Cadmium	0.005
13.	Carbaryl	0.09
14.	Carbofuran	0.09
15.	Carbon Tetrachloride	0.005
16.	Chloramines	3.0
17.	Chlorpyrifos	0.09
18.	Chromium	0.05
19.	Cyanide	0.2
20.	Diazinon	0.02
21.	Dicamba	0.12
22.	1,2-Dichlorobenzene	0.2
23.	1,4-Dichlorobenzene	0.005
24.	1,2-Dichloroethane	0.005
25.	1,1-Dichloroethylene (vinylidene chloride)	0.014
26.	Dichloromethane	0.05
27.	2,4-Dichlorophenol	0.9
28.	2,4-Dichlorophenoxy acetic acid (2,4-D)	0.1
29.	Diclofop-methyl	0.009
30.	Dimethoate	0.02
31.	Dioxin and Furan	0.000000015 a
32.	Diquat	0.07
33.	Diuron	0.15
34.	Fluoride	1.5
35.	Glyphosate	0.28
36.	Lead	0.010
37.	Malathion	0.19
38.	Mercury	0.001
39.	Metolachlor	0.05
40.	Metribuzin	0.08
41.	Microcystin LR	0.0015
42.	Monochlorobenzene	0.08
43.	Nitrate (as nitrogen)	10.0
44.	Nitrite (as nitrogen)	1.0
45.	Nitrate + Nitrite (as nitrogen)	10.0
46.	Nitrilotriacetic Acid (NTA)	0.4
47.	N-Nitrosodimethylamine (NDMA)	0.000009
48.	Paraquat	0.01
49.	Pentachlorophenol	0.06
50.	Phorate	0.002
51.	Picloram	0.19
52.	Polychlorinated Biphenyls (PCB)	0.003
53.	Prometryne	0.001
54.	Selenium	0.01
55.	Simazine	0.01
56.	Terbufos	0.001
57.	Tetrachloroethylene (perchloroethylene)	0.03
58.	2,3,4,6-Tetrachlorophenol	0.1
59.	Triallate	0.23
60.	Trichloroethylene	0.005
61.	2,4,6-Trichlorophenol	0.005
62.	Trifluralin	0.045
63.	Trihalomethanes	0.100 b
64.	Uranium	0.02
65.	Vinyl Chloride	0.002

 

Footnotes:

^a Total toxic equivalents when compared with 2,3,7,8-TCDD (tetrachlorodibenzo-p-dioxin).

^b This standard is expressed as a running annual average of quarterly results.

(2) Item 3 of Schedule 2 to the Regulation, as remade by subsection (1), is amended by striking out “0.025” in Column 3 and substituting “0.01”.

(3) Item 7 of Schedule 2 to the Regulation, as remade by subsection (1), is amended by striking out “0.005” in Column 3 and substituting “0.001”.

(4) Item 15 of Schedule 2 to the Regulation, as remade by subsection (1), is amended by striking out “0.005” in Column 3 and substituting “0.002”.

(5) Schedule 2 to the Regulation, as remade by subsection (1), is amended by adding the following items:

 

16.1	Chlorate	1.0
16.2	Chlorite	1.0

 

(6) Schedule 2 to the Regulation, as remade by subsection (1), is amended by adding the following item:

 

35.1

Haloacetic acids

0.08 b

 

(7) Schedule 2 to the Regulation, as remade by subsection (1), is amended by adding the following item:

 

38.1

2-Methyl-4-chlorophenoxyacetic acid

0.1

 

(8) Item 65 of Schedule 2 to the Regulation, as remade by subsection (1), is amended by striking out “0.002” in Column 3 and substituting “0.001”.

Commencement

2. (1) Subject to subsections (2), (3), (4) and (5), this Regulation comes into force on the day it is filed.

(2) Subsection 1 (1) comes into force on the later of January 1, 2016 and the day this Regulation is filed.

(3) Subsections 1 (3), (4), (5), (7) and (8) come into force on the later of January 1, 2017 and the day this Regulation is filed.

(4) Subsection 1 (2) comes into force on the later of January 1, 2018 and the day this Regulation is filed.

(5) Subsection 1 (6) comes into force on the later of January 1, 2020 and the day this Regulation is filed.