What’s in my water?

Water quality standards

Your health is our highest priority.

We have compiled our most frequently asked questions and answered them for you for your easiest convenience. We have complied over 100 years of experience to ensure your questions don’t go unanswered. Developing research is incredibly important, we have our finger on the pulse to make sure we don’t miss a beat. If you have a question that isn’t answered below, please get in touch with us so we can get you the answers you’re after.

NameMAV (mg/L)Remarks
antimony0.02
arsenic0.01For excess lifetime skin cancer risk of 6 x 10-4. PMAV, because of
analytical difficulties
barium0.7
boron11.4
bromate0.01For excess lifetime cancer risk of 7 x 10-5. PMAV
cadmium0.004
chlorate0.8PMAV. Disinfection must never be compromised. DBP (chlorine dioxide)
chlorine5Free available chlorine expressed in mg/L as Cl2. ATO. Disinfection
must never be compromised
chlorite0.8Expressed in mg/L as ClO2. PMAV. Disinfection must never be
compromised. DBP (chlorine dioxide)
chromium0.05PMAV. Total. Limited information on health effects
copper2ATO
cyanide0.6Total cyanides, short-term only
cyanogen chloride0.4Expressed in mg/L as CN total. DBP (chloramination)
fluoride21.5
lead0.01
manganese0.4ATO
mercury0.007Inorganic mercury
molybdenum0.07
monochloramine3DBP (chlorination)
nickel0.08
nitrate, short-term 350Expressed in mg/L as NO3. The sum of the ratio of the concentrations
of nitrate and nitrite to each of their respective MAVs must not exceed
one
nitrite, long-term0.2Expressed in mg/L as NO2. PMAV (long term)
nitrite, short-term33Expressed in mg/L as NO2. The sum of the ratio of the concentrations
of nitrate and nitrite to each of their respective MAVs must not exceed
one
selenium0.01
uranium0.02PMAV
acrylamide0.0005For excess lifetime cancer risk of 10-5
alachlor0.02Pesticide. For excess lifetime cancer risk of 10 -5
aldicarb0.01Pesticide
aldrin + dieldrin0.00004Pesticide. The sum of, not each
anatoxin-a0.006Cyanotoxin. PMAV
anatoxin-a(s)0.001Cyanotoxin. PMAV
atrazine0.002Pesticide. Cumulative for atrazine and congeners
azinphos methyl0.004Pesticide. PMAV
benzene0.01For excess lifetime cancer risk of 10 -5
benzo(α)pyrene0.0007For excess lifetime cancer risk of 10-5
bromacil0.4Pesticide. PMAV
bromodichloromethane0.06For excess lifetime cancer risk of 10-5. THM
bromoform0.1THM
carbofuran0.008Pesticide
carbon tetrachloride0.005
chlordane0.0002Pesticide
chloroform0.4THM
chlorotoluron0.04Pesticide
chlorpyriphos0.04Pesticide
cyanazine0.0007Pesticide
cylindrospermopsin0.001Cyanotoxin. PMAV
2,4-D0.04Pesticide
2,4-DB0.1Pesticide
DDT + isomers0.001Pesticide. Sum of all isomers
di(2-ethylhexyl)phthalate0.009
1,2-dibromo-3-chloropropane0.001Pesticide. For excess lifetime cancer risk of 10-5
dibromoacetonitrile0.08DBP (chlorination)
dibromochloromethane0.15THM
1,2-dibromoethane0.0004Pesticide. PMAV, for excess lifetime cancer risk of 10-5
dichloroacetic acid0.05PMAV. DBP (chlorination)
dichloroacetonitrile0.02PMAV. DBP (chlorination)
1,2-dichlorobenzene1.5ATO
1,4-dichlorobenzene0.4ATO
1,2-dichloroethane0.03For excess lifetime cancer risk of 10-5
1,2-dichloroethene0.06Total of cis and trans isomers
dichloromethane0.02
1,2-dichloropropane0.05Pesticide. PMAV
1,3-dichloropropene0.02Pesticide. Total of cis and trans isomers. For excess lifetime
cancer risk of 10-5
dichlorprop0.1Pesticide
dimethoate0.008Pesticide
1,4-dioxane0.05For excess lifetime cancer risk of 10-5
diuron0.02Pesticide. PMAV
EDTA (editic acid)0.7
endrin0.001Pesticide
epichlorohydrin0.0005PMAV
ethylbenzene0.3ATO
fenoprop0.01Pesticide
hexachlorobutadiene0.0007
hexazinone0.4Pesticide. PMAV
homoanatoxin-a0.002Cyanotoxin. PMAV
isoproturon0.01Pesticide
lindane0.002Pesticide
MCPA0.002Pesticide
mecoprop0.01Pesticide
metalaxyl0.1Pesticide, PMAV
methoxychlor0.02Pesticide
metolachlor0.01Pesticide
metribuzin0.07Pesticide. PMAV
microcystins0.001Cyanotoxin. PMAV. Expressed as MC-LR toxicity equivalents
molinate0.007Pesticide
monochloroacetic acid0.02DBP (chlorination)
nitrilotriacetic acid (NTA)0.2
nodularin0.001Cyanotoxin. PMAV
oryzalin0.4Pesticide. PMAV
oxadiazon0.2Pesticide. PMAV
pendimethalin0.02Pesticide
pentachloropheno0.009Pesticide. PMAV
picloram0.2Pesticide. PMAV
pirimiphos methyl0.1Pesticide. PMAV
primisulfuron methyl0.9Pesticide. PMAV
procymidone0.7Pesticide. PMAV
propazine0.07Pesticide. PMAV
pyriproxifen0.4Pesticide
saxitoxins0.003Cyanotoxin. Expressed as STXeq PMAV
simazine 0.002Pesticide
styrene0.03ATO
2,4,5-T0.01Pesticide
terbacil0.04Pesticide. PMAV
terbuthylazine0.008Pesticide
tetrachloroethene0.05
thiabendazole0.4Pesticide. PMAV
toluene0.8ATO
trichloroacetic acid0.2DBP (chlorination)
trichloroethene0.02PMAV
2,4,6-trichlorophenol0.2For excess lifetime cancer risk of 10-5. ATO
triclopyr0.1Pesticide. PMAV
trifluralin0.03Pesticide. Technical grade may contain carcinogens
trihalomethanes (THMs)The sum of the ratio of the concentration of each THM to its
respective MAV must not exceed one
The individual members of this group are indicated in the
table as THM
vinyl chloride0.0003For excess lifetime cancer risk of 10-5
xylenes (total)0.6ATO
10800.0035Pesticide. PMAV

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Auckland, New Zeland