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B.C. Reg. 375/96
O.C. 1480/96
Deposited December 16, 1996
effective April 1, 1997
This consolidation is current to September 19, 2017.
See “Amendments Not in Force” for amendments
effective after September 19, 2017.
Link to Point in Time

Environmental Management Act

Contaminated Sites Regulation

[includes amendments up to B.C. Reg. 184/2016, July 19, 2016]

Schedule 6

[en. B.C. Reg. 324/2004, s. 68; am. B.C. Regs. 405/2004; 76/2005;
239/2007, s. 7; 343/2008, ss. 15 and 16.; 97/2011, s. 1; 6/2013, s. 24.]

Generic Numerical Water Standards1

COLUMN ICOLUMN IICOLUMN IIICOLUMN IVCOLUMN V
SubstanceAquatic Life2 
(AW)
Irrigation2,3 
(IW)
Livestock2 
(LW)
Drinking Water4 
(DW)
Inorganic Substances
aluminum 5 0005 0009 50056,57
ammonia1 310 @ pH ≥ 8.55,6   
 3 700 @ pH 8.0 - < 8.55,6   
 11 300 @ pH 7.5 - < 8.05,6   
 18 500 @ pH 7.0 - < 7.55,6   
 18 400 @ pH < 7.05,6   
     
 2 300 @ pH ≥ 8.57,8   
 6 850 @ pH 8.0 - < 8.57,8   
 20 000 @ pH 7.5 - < 8.07,8   
 64 000 @ pH 7.0 - < 7.57,8   
 200 000 @ pH < 7.07,8   
antimony200  6
arsenic506, 12581002510
barium10 0006, 5 0008  1 000
beryllium536, 1 0008100100 
boron50 000500-6 00095 0005 000
bromate   10
cadmium0.1 @ H ≤ 306,105805
 0.3 @ H = 30 - < 906,10   
 0.5 @ H = 90 - < 1506,10   
 0.6 @ H = 150 - < 2106,10   
 18   
calcium  1 000 mg/L 
chloride1 500 mg/L6100 mg/L49600 mg/L250 mg/L11
chlorine206, 3081 000  
chromium106,12, 906,13812, 5135012,1350
 1508,12, 5608,13   
cobalt40501 000 
copper20 @ H < 506,102003001 00011
 30 @ H = 50 - < 756,10   
 40 @ H = 75 - < 1006,10   
 50 @ H = 100 - < 1256,10   
 60 @ H = 125 - < 1506,10   
 70 @ H = 150 - < 1756,10   
 80 @ H = 175 - < 2006,10   
 90 @ H ≥ 2006,10   
 208   
cyanide (WAD)14506, 108   
cyanide (SAD)15   200
fluoride2 000 @ H< 506,101 0001 000161 500
 3 000 @ H ≥ 506,10   
 15 0008   
iron 5 00058,59 6 50056,57,58,59
lead40 @ H < 506,1020010010
 50 @ H = 50 - < 1006,10   
 60 @ H = 100 - < 2006,10   
 110 @ H = 200 - < 3006,10   
 160 @ H ≥ 3006,10   
 208   
lithium 2 500495 000 
magnesium   100 mg/L11
manganese 20060,61 55056,57,60,61
mercury1121
molybdenum10 00010 - 301750250
monochloramine518  3 00019
nickel250 @ H < 606,102001 000 
 650 @ H = 60 - < 1206,10   
 1 100 @ H = 120 - < 1806,10   
 1 500 @ H ≥ 1806,10   
 838   
nitrate (as N)400 mg/L20 100 mg/L2110 00021
nitrate and nitrite (as N)400 mg/L20 100 mg/L2110 00021
nitrite (as N)200 (Cl < 2 mg/L)22 10 0003 200
 400 (Cl = 2 - < 4 mg/L)22   
 600 (Cl = 4 - < 6 mg/L)22   
 800 (Cl = 6 - < 8 mg/L)22   
 1 000 (Cl = 8 - < 10 mg/L)22   
 2 000 (Cl ≥ 10 mg/L)22   
salinity 5515 g/L6,23,24   
 10 g/L if natural salinity is
0 - < 3.5g/L8,23,25
   
 20 g/L if natural salinity is
3.5 - < 13.5g/L8,23,25
   
 40 g/L if natural salinity is
13.5 - 35g/L8,23,25
   
selenium106, 54082026, 50275010
silver0.5 @ H ≤ 1006,10   
 15 @ H > 1006,10   
 158   
sodium   200 mg/L11
sulphate1 000 mg/L 1 000 mg/L500 mg/L11
sulphide (as H2S)20  5011
thallium3   
titanium1 000   
uranium3 0006, 1 00081020020
vanadium 100100 
zinc75 @ H ≤ 906,101 000 @ pH ≤ 6.0282 0005 00011
 150 @ H = 90 - < 1006,102 000 @ pH 6.0 - < 7.028  
 900 @ H = 100 - < 2006,105 000 @ pH ≥ 7.028  
 1 650 @ H = 200 - < 3006,10   
 2 400 @ H = 300 - < 4006,10   
 1008   
Miscellaneous Inorganic and
Organic Substances
acrolein  329 
aniline20   
methyl tertiary butyl ether (MTBE)34 0006, 4 4008 11 00015
nitrilotriacetic acid (NTA)   400
nonaqueous phase liquidsnot present30not present30not present30not present30
VPHw1 50031   
LEPHw50032   
VHw6-1015 00033,3415 00033,3415 00033,3415 00033,34
EPHw10-195 00033,355 00033,355 00033,355 00033,35
Organic Substances
Chlorinated Hydrocarbons
chlorinated aliphatics
hexachlorobutadiene, 1,3

1
   
hexachlorocyclohexane360.1 44
vinyl chloride   2
chlorinated benzenes
 
dichlorobenzene, 1,2-

76, 4208
  
311
dichlorobenzene, 1,3-1 500   
dichlorobenzene, 1,4-260  111
hexachlorobenzene  0.5 
monochlorobenzene136, 1208  3011
pentachlorobenzene60   
tetrachlorobenzene, 1,2,3,4-18   
trichlorobenzene, 1,2,3-80   
trichlorobenzene, 1,2,4-2406, 548   
chlorinated ethanes
 
dichloroethane, 1,2-

1 000
 
5

5
chlorinated ethenes
 
dichloroethylene, 1,1-
(dichloroethene, 1,1-)
   

14
tetrachloroethylene
(tetrachloroethene, 1,1,2,2-)
1 100  30
trichloroethylene
(trichloroethene, 1,1,2-)
200 505
Glycols
ethylene glycol1 920 mg/L   
propylene glycol, 1,2-5 000 mg/L   
Halogenated Methanes
bromodichloromethane (BDCM)  10016
dibromochloromethane (DBCM)  10010037
dichloromethane
(methylene chloride)
980
 50
50
tetrachloromethane
(carbon tetrachloride)
130
 5
5
tribromomethane
(bromoform)
  100
10037
trichloromethane
(chloroform)
20 
 
 100
10037
Monocyclic Aromatic
Hydrocarbons (MAHs)
benzene4 0006,38, 1 0008,38  5
ethylbenzene2 0006,38, 2 5008,38  2.411
styrene720   
toluene3906,38,39, 3 3008,38,39  2411
xylenes (total)   30011
Organotins
di-n-butyltin0.8   
tributyltin0.086, 0.058,29 250 
tricyclohexyltin  25040 
triethyltin440   
triphenyltin0.240 80040 
Phenolic Substances
chlorinated phenols
dichlorophenol
2.5 — 34041 0.3110.311
monochlorophenol8.5 — 65041 0.1110.111
pentachlorophenol1 — 27.541 30113011
tetrachlorophenol2 — 18041 111111
trichlorophenol1 — 27041 211211
nonchlorinated phenols
nonchlorinated phenols (total)

10
   
Phthalic Acid Esters
dibutyl phthalate (DBP)190   
di(2-ethylhexyl) phthalate (DEHP)160   
Polycyclic Aromatic
Hydrocarbons (PAHs)
acenaphthene60   
acridine0.5   
anthracene1   
benzo[a]anthracene1   
benzo[a]pyrene0.1  0.01
chrysene1   
fluoranthene2   
fluorene120   
naphthalene10   
phenanthrene3   
pyrene0.2   
quinoline34   
Pesticides
aldicarb106, 1.5854.942, 67.543119
aldrin and dieldrin0.04 0.70.7
atrazine206, 100810605
azinphos-methyl  2020
bendiocarb  4040
bromocil500.244, 0.6451 100 
bromoxynil500.3543115
captan28 10 
carbaryl26, 38 1 10090
carbofuran18 4590
chlordane0.06 77
chlorothalonil26, 485.8170 
chlorpyrifos0.0356, 0.028 2490
cyanazine200.51010
2,4-D4640 100100
DDT470.0148 30483048
deltamethrin0.129 2.5 
diazinon0.03 1420
dicamba1000.129122120
diclofop-methyl610.1899
dimethoate62 320
dinoseb0.51649, 4650, 93451505110
diquat  7070
diuron  150150
endosulfan0.2   
endrin0.023 0.2 
glyphosate650 280280
heptachlor & heptachlor
epoxide

0.1
 
3

3
lindane0.1 44
linuron700.529,44, 3.345  
malathion1 190190
MCPA52266, 4280.52925100
methoxychlor  900900
metolachlor80285050
metribuzin100.58080
paraquat (as dichloride)  1010
parathion  5050
phorate  22
picloram2900.5190190
simazine1000.51010
2,4,5-T53  2020
tebuthiuron16229,45130 
temephos  280280
terbufos  11
toxaphene540.08 5 
triallate2.4 230230
trifluralin1 4545

Footnotes

1.All values are in μg/L unless otherwise stated. Substances must be analyzed using methods specified in a director's protocol or alternate methods acceptable to a director.
2.(a) Aquatic life standards assume minimum 1:10 dilution available. Aquatic life standards are to protect freshwater and marine life unless otherwise indicated.
(b) Standards for all organic substances are for total substance concentrations. Any water sample to be analyzed for organic substances should not be filtered.
(c) Standards for surface water samples to be analyzed for heavy metals, metalloids and inorganic ions are total substance concentrations. In addition, it is recommended that surface water samples being analyzed for heavy metals, metalloids and inorganic ions should also be analyzed for dissolved substance concentrations.
(d) Standards for groundwater samples for heavy metals, metalloids and inorganic ions are for dissolved substance concentrations. In addition, it is recommended that groundwater samples being analyzed for metals, metalloids and inorganic ions should be analyzed for total substance concentrations.
3.Applies to irrigation of all soil types.
4.Drinking water standards are for unfiltered samples obtained at the point of consumption. Heavy metals, metalloids and inorganic ions are expressed as total substance concentrations unless otherwise indicated.
5.Standard varies with pH and temperature. 10ºC is assumed. Consult director for further advice.
6.Standard to protect freshwater aquatic life.
7.Standard varies with pH, temperature and salinity. 10ºC and 10 g/L is assumed. Consult director for further advice.
8.Standard to protect marine and/or estuarine aquatic life.
9.Standard varies depending on crop as follows:
CropStandard (μg/L)
blackberry500
barley, cherry, cowpea, garlic, grape, Jerusalem artichoke, kidney bean, lima bean, lupin, mung bean, onion, peach, plum, sesame, strawberry, sunflower, sweet potato, wheat1 000
carrot, cucumber, pea, potato, radish, red pepper2 000
artichoke, bluegrass (Kentucky) cabbage, celery, clover, corn, lettuce, muskmelon, mustard, oat, squash, tobacco, turnip4 000
alfalfa, asparagus, parsley, purple vetch, red beet, sorghum, sugar beet, tomato6 000
10.H means water hardness in mg/L CaCO3.
11.Standard to protect against taste and odour concerns.
12.Standard is specific to chromium VI.
13.Standard is specific to chromium III.
14.WAD means weak acid dissociable.
15.SAD means strong acid dissociable.
16.Standard varies with type of livestock. Consult director for further advice.
17.Standard varies with crop, soil drainage and Mo:Cu ratio. Consult director for further advice.
18.Substance is extremely labile in water. Extended hold times are inappropriate. It is recommended that samples be analysed in the field or immediately upon receipt by laboratory.
19.Standard is specific for total chloramines.
20.Standard may not protect all amphibians. Consult director for further advice.
21.Where nitrate and nitrite are present, total nitrate plus nitrite-nitrogen should not exceed this value.
22.Standard varies with chloride concentration. Consult director for further advice.
23.Standard applies only if minimum 1:10 dilution available in receiving waterbody.
24.Freshwater is defined as water having a natural salinity < 1.5 g/L.
25.Standard varies with natural salinity of receiving waterbody.
26.Standard for continuous applications on crops.
27.Standard for intermittent application on crops.
28.Standard varies with soil pH.
29.Standard has been adjusted based on the reference analytical detection limit for the substance. The toxicologically-based value is less than the reference analytical detection limit for the substance. Therefore, the standard has been set to equal the reference analytical detection limit.
30.Water must be remediated so that nonaqueous phase liquids are not present in quantities in excess of that acceptable to a director.
31.VPHw includes volatile petroleum hydrocarbons with the exception of benzene, toluene, ethylbenzene and xylenes. This generic standard may be modified by developing a site-specific standard. Consult director for further advice.
32.LEPHw includes light extractable petroleum hydrocarbons with the exception of acenaphthene, acridine, anthracene, fluorene, naphthalene and phenanthrene. This generic standard may be modified by developing a site-specific standard. Consult director for further advice.
33.Standard is applicable at all sites, irrespective of water use.
34.VHw6-10 includes volatile petroleum hydrocarbons.
35.EPHW10-19 includes light extractable petroleum hydrocarbons.
36.Standard is applicable to all hexachlorocyclohexane isomers.
37.Standard is specific for total trihalomethanes. Sum of the concentrations of bromodichloromethane (BDCM), dibromochloromethane (DBCM), tribromomethane (bromoform) and trichloromethane (chloroform) must not exceed the standard specified.
38.This generic standard may be modified by developing a site-specific standard. Consult director for further advice.
39.Standard comes into effect January 1, 2002. Until that date applicable standard is 3 000 μg/L.
40.No reference analytical method has been specified for substance. Consult director for further advice.
41.Standard varies with pH, temperature and substance isomer. Consult director for further advice.
42.Standard to protect crops other than legumes.
43.Standard to protect legumes.
44.Standard to protect crops other than cereals, tame hays and pasture.
45.Standard to protect cereals, tame hays and pasture crops.
46.2,4-D is 2,4-dichlorophenoxyacetic acid.
47.DDT is 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane.
48.Includes DDT metabolites.
49.Standard to protect all types of crops.
50.Standard to protect cereal crops and hay.
51.Standard to protect lactating dairy animals.
52.MCPA is 4-chloro-2-methylphenoxy acetic acid.
53.2,4,5-T is 2,4,5-trichlorophenoxy acetic acid.
54.Standard is applicable to all toxaphene isomers.
55.Values of salinity for a sample provided in g/L or on the Practical Salinity Scale (PSS) are equivalent.
56.Standard is specific to protection of human health. Standard has been derived based on a toxicological reference value (TRV) protective of adults. Standard may not adequately protect other age groups.
57.Standard may not address aesthetic (organoleptic) concerns related to drinking water quality. Water treatment may be required.
58.Standard applies to a site used for an industrial or commercial purpose or activity set out in Schedule 2 as
(a) item A6, A7, A8 or A11,
(b) item C1, C2, C3, C4 or C6,
(c) item D2, D3, D5 or D6,
(d) item E4, or
(e) item H14.
59.Standard applies to a site used for an industrial or commercial purpose or activity set out in Schedule 2 as item H11 or H20 but only if the site was used for that purpose or activity in conjunction with or as a result of the site also being used for at least one of the purposes or activities set out in footnote 58.
60.Standard applies to a site used for an industrial or commercial purpose or activity set out in Schedule 2 as
(a) item B1,
(b) item C1, C3 or C4,
(c) item D2, D3, D5 or D6,
(d) item E4, or
(e) item H3 or H14.
61.Standard applies to a site used for an industrial or commercial purpose or activity set out in Schedule 2 as item H11 or H20 but only if the site was used for that purpose or activity in conjunction with or as a result of the site also being used for at least one of the purposes or activities set out in footnote 60.

Contents | Parts 1 to 18 | Schedule 1 | Schedule 1.1 | Schedule 2 | Schedule 3 | Schedule 4 | Schedule 5 | Schedule 6 | Schedule 7 | Schedule 8 | Schedule 9 | Schedule 10 | Schedule 11