drinking water regulations & health advisoriesdrinking water regulations and health advisories...
TRANSCRIPT
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SDMS DocID 2106209 (Hi •ecfj
DRINKING WATER REGULATIONS
AND HEALTH ADVISORIES
By
Office of Drinking Water U.S, Enivironmental Protection Agency
Washington, D.C. (202)382-7571
SAFE DRINKING WATER HOTLINE 1-800-426-4791 (Toil-Free)
'202-3 82-5533(Wasiiington, D.C.) Monday thru Friday, 8:30 AM to 4:30 PM EST
April 1S90
" 7
AR100421
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" Abbreviaf ens column descripti'dns are: ' /{^^'^
NIFOWH - N^Jcrd Interjni Pnmary Drinking Wstsr Reguiaticn. Intsrim enfcrcaabi© drin; watar regulatlcna first established under me Safa Drinking Water Act tfiat protective cf public heath to the extent feasible.
MCLG • - MaxTOum Contaminant Levei Gcai. A ncn-enfcrcsable ccncentration cf a drink watsr ccntaminant that is prctsc^a ci ad'/srs^ human health effects and aJlcws adequate margin cf safety. > . .
MCL - Maximum Contaminant Level. Maximum permissible Ieve< cf a contaminant in Wc which is delivered to any user cf a public water system,
RfO - Reference Dose. An estimate cf a daily exposure to the human population tha-likely to be without.appredable risk cf deleterious effects ever a lifetime.
DWHL - Drinking Watsr Equivalent Lsve<. A lifetim.e exposure ccncentraticn protective adverse, non-cancer health effects, tiiat assumes a^ cf the exposure tc contaminant is from a drinking water scurca.
(*) Tne- cc<ies for the .Status Reg and Status HA cdumns are 33 fcflcws:
£ - final Q - draft I, - listed for regulation P - proposed (Phase II draft prcpcsaJ) T - tentative (Phase V)
Other cedes found in tiie table indude ti:e fcltewing:
. N^ - net applicable PS - performance standard 0.5 HTO -1.0 NTU H - treatinent technique
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*-*-*
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No mcrs than 5% of the samples may be positive. For systems collecting fev than-40 samples/mcrTth, no mere than 1 sample may be positive.
gukJanca
Large dlsaepancies between Lifetime and Longer-term HA values may ccc because of the Agency's conservative policies, especially with regard cardnogenicity, relative source corrtribution, and less tiian lifetime exposures chronic toxicity testing. These factors can result in a cumulative UF (uncertair factor) of 10 to 1000 when calculating a Lifetime HA.
AR100422
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/ - " - . n fxa 1990 .Pj»aL2
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Elutyl benzyl phJhalate (BOP) | nutylata | Dutylbenzene iv | Butylbemene sec- . | niitvlbeniene tert- ' - | CaitJiuyl CaiixAiuan Cart>on TelrachlorkJo | Cait>oxin Chlofal Hydrate . | Chlofamben | ChJofamJno Chkxala Chlofdane , .. Chlorine Chikxina dioxide Chlorite Chlofodibfomomelhana (THM) Chkxoetharw • Chloro<orrn (THW Chlofomethane Chlivophenol (2,4.6)• Chlofophenol*(2,4-) Chlofophenol (2-) p-Chkxophenyl meihyl
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1 2000 1
500 1 j
10000 1 200 1
-50
-300
. 6000
700 1
200 800 100 500
5000 • -
100 50
2000 . 800
1 E ^ 700 300
1 900
LonQBtr-tann
70k( iAd i i l t
RjO /»0/l llQl^Qliiotj
-7000 2000
-40000
000 -
200 -
1000 .
1 20000 1 2000 1 4 1 500 1 3000 1 500 1 2000 1 20000
• -
1 400 1 200 1 7000 1 1000 1 4 E ^ 1 2000 1 000
1 S I 3000
-20 40
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-4.5 •
30 .
600 70
-15 75 13 20 20
.
30 3 2
200 10
I E 06 70 13
rywfl. i l l / *
-700
1000 -
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-200
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. 20000
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• 500 300f)
500 700 600
. -
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7000 350
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30 1000
LJtatlma
i»o/t
-100 300
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-30
1 iKJ/l^l
at 10^1 CarKar|
. n*^ 1
-
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0/200 -.
4000 500
-100 50 90 10
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. 500
90 0.9
70
.
0.5 . • --- ' . -
30 • t .
2C-05 . . .
100
Cancel Group
-0 D -
n E
E
1 -|B2/n
1 -1 n 1 0 1 -B2 1 n 1 c 1 D 1 c 1 0 1 1 0 1 c 1 c lB2yc
1 n 1 B2
1 D 1 E 1 D 1 c
-.-1 :
AR100428
n
Anrii 1990 Papo 7
Chemicals | ••*• i
Totrachloroethane (1.1.2.2) | Totrachk)roethylerw | Tohjena | Toxapher>e . | 2.4.5-TP - • •I 1,l.2-Trichk)ro-1.2.2-
iriiluoroethane Trichkxoacetic add Trichloroaaonitrila Trichloroberuerw (1.2.4-) Trichlorobenzena (1.3.5-) Trichloroetharw (1.1.1-) Trichkjroethane (1,1.2-) Trichtoroethanol (2.2,2) Trichloroethylene Trichloroprooano H.l. l-) Trichloropropane (1.2,3) Trilluralin Triaiethylbenzene (1,2,4) Trlnrtethylbenzana (1,3,5-) Tfinitroqlycerol Tri(\itroto(uene Vinyl chkxidai White phosphorus Xylenes Zinc chlorida ~
f^taTKlatxis
1 1
Statiia FiiPDWn UCLQ U a . | fUQ.
L P P P
• P
-L L T . F T L F --
1 L -
1 -1 1
1 F 1 1 P 1
* 0>o/0
--5
10
----. -----
---------
ItKiffi
' zoro
2000 zoro
50
--
• - •
0 .
200 3 .
zero --- •
----
zoro -
10000 -
0*0/0 1
-5 1
2000 • / 5
50
--- •
0 -
200 5 - -
5 -------o A .
-10000
-
3taliis HA* 1
D 1 F F F F
D D
1 F F
1 F 1 F
-1 F
P 1 F
F 0
n F
1 F 1 F 1 ^ 1 F 1 P
• ) 1 iaokiy Advtsorioa
10 kn awb i 1
Orva-day
WA ,
-2000
20000 500
• 200
-vIOOOO
1 y ^
1 100 1 600 1 100000 1 600
. • -
. 1 600 1 30
--
1 5 1 20 1 3000 1 1 40000
1 •
Tonr la^
/>o/i
-2000 3000
40 200
-30000
. 100 600
40000 400
. • -
• ~
600 30
--5
20 300O»
-4OO0O
-
LnnQor-1 l o i m 1
/*0/l 1
j 1000 1 3000 1
-70 1
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• -
100 . 600 40000
400 .
• •
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30 -. 5
20 10
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•
TO kO AtWA 1 Lonoy-
tann rvo /if l/ l /lo/kfl/dfly
-5000
10000 -
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. 100000
. 1 500 1 2000 1 100000 1 1000
. 1
1 1 2000 1 100 1
. 5
20 1 50 1
1 100000 1
10 300 100
7.5
. 300
. 1 -6
00 4 -7 -6 7.5 -. ..
0.5 . -
2000 -
DWEL i*fl/l
-500
10OOO 3.5
300
. 10000
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20O .1000 .100
-300
. 200 260
.
. _
20 . -
60000 -
Uatbna i»0/»
-•
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50
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•
9 40
200 3 .
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l ^ J SA 10^1 Cancer] Hhk 1
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n
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1 . B 2 1 1 1 c 1 1
.
1 c 1 A 1 1 p 1
AR100429
n
pra 1990 P''K)on Starwlarrts I tiMiJih A<krtao<ioa
1 diomicats 1
— 1
QRQANICS 1
Akimlrujm J Ammonia %•,.] Antimony ' | Arsenic 1 Mbostos ffibers/! > 10tjm) Barium DoryUium Boron Cadmium Chromium ftotaO Copper . Cyariide ••. -Fhjoride Lead (at source) Lead (at lao) Marxjartesa Mercury Molybdenum Nickol • . Nitrate (as N)» Nitrite (as N) Nitrate-t-Nltrfca . ^ Soieoium SlKw SodUim Strontium Sutfata Thallium Vanadium Zinc
1 1
Stai iu MtfH)Wn UCLQ UCL |
R»a*
. . .
L - ' L
T T P P T L P P P T
1 F P
1 P 1 -
1 P 1 L 1 T 1 P 1 P 1 P 1 P 1 L 1 It 1 L 1 T 1 T 1 L 1 ^
' W^
---
50 .
1000 --
10 50
--
OAJ/I>
. -3
zoro
0>o/9 1 • 1
• --
10/5 -
7E+06 7E+0fl 5000 zero
-6
100 1300 200
1.4-2.4 <000 -
50 -2 --
10000 --
10 50
------
zero zero
-2 -
100 10000
1000 10000
50 ---
5000 1 -5
100 1300 200
4000 5
TT -2 -
100 10000
1000 10000
50 --- •
400000 400000
as . -
2/1 -
Sialiifl 1 HA* 1
1
1 P 1 P 1 P P .
F D D F F
F . ---
1 F P
1 F 1 F 1 F 1 1 1 P 1 P 1 P 1
1 P 1 D 1 P
lO^kn Clilkl
Ono-cliy Teivrlay /JQ/I
--
15 -•
5000 30000
2000 40-
1 1000
200 .
. ---
1000 . -
1
1 1 200 1 •
1 25000 1
1 7 1 1
WJ/1
. -
15 -.
5000 30000
2000 40
1000 -
200 .
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1000 10000*
1000 . .
200 -
25000 «
7 . r
-
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--
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.
.
.
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7 _ -
LonQor-torm
7tl
rw) PO/* PO/kflWay
15 -.
5000 20000
1 3000 1 20 1 800 1 1 800
. -.
1 2 .
1 600 .
1 1
I ' ' •
1 200 1 1 OOOOO 1 •
1 20 1 .
1
. -0.4 1 _ -5
90 0.5 5 •
22 60
-.
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20 _
- . • _
5
^ko Ackik
DweL P0/»
--
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200 3000
20 200
-800
. •
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10 -
600 . • « .
200 20000***
2500 .
90000 .
007 2 _ -
_ -
Lftatima
i'O/l
•
; -30000
3 • .
5000 ' -
600 5
100 -
200 -• '. -
2 .
100 . _ . _
100 .
17000 _
1 |iO/l jC^anoer
U 10^|G<oiip Canoerl
f ^ \
1; •
- j - •
- 1: P - 1 D 3 1 A - 1 -
' - 1 D 0.7 1 B2 - 1 0 - 1 D - 1 n
- 1 D - 1 P • 1 -- 1 B2 - f B2
- r -- 1 P - 1 0 - 1 P -in - 1 D - 1 -. 1 . - 1 D - 1
e . - 1 D 3?5» - 1 -
o.4r# - 1 -.
^ - j D - 1 -AR100430
Afra 1990 Pago 0
V
Chemicals .-*
MlCROBIOL(3QY AND TURBIOOY
Cryptosporidium Giardia lamblla - ; . " i LegtoneUa . '^* Standard p(ate count Total coWorm (current MCL
tvased on densitv) Total colifonn (after 12/31/00) Tujtoiditv (be{ora 1/1/91) ; Turbidity (after 12/31/90) Vintses
^nrwlartt i
S ta lm NIPDUUn
naa*
• .
L • F
1 F* 1 F*
1 F 1 F 1 F 1 F 1 F*
OnVO
----
V03
yes yea yes
-
I
UCLQ (MOfl)
-zoro zoro
NA
UCL
0*ol)
-TT TT TT
NA varlos zero
NA •«
-NA 1 & 5 N T I
lep? II
1
Status 1 HA*
"
--
^ F -
---
I/PS -
1 _.,-..._
Haakh ArK/tsorias l O k n a * ! 1
Ono<lay Tervday pOfl ^IQ^
-• -
• • -
-
1 ' -1 1 1
IjonQOt-taon ItQti
----
.
. ---
70 kn AfkiJt Lnnoor-
tann rvn PO/I ItQ^Qfiia^
--• -
1 1
1 1 1
----
.
. -
• • ; • .
-
p\wnL i»o/i
----
.
. ---
Ukiikna
^»Q^
•
-' • -
.
. ---
HQI\ \ H 10"* 1 Cancer Risk
-- 1 -
^ .
• - ,
--
Can Gmi
*
1 •
Key:
Varias:
. '1 and 5 NTU^
PS, TT, F. doflr^erl aa prcwioualy atated.
Final (or systems iKiinQ siulaco wator, also l>elrx) conaldorod (or rogulalkin under orourukvator disii^odion mlo.
MCL varies based on analytical nu)tlv>d usod, sample vok»mo. and ruj(nt)er ol samples colloclorl per nvinth. Also, t* typos ol MCLs » the monthly average and the "sk^o sampler UCL Both are basod on colilorm rlonsity.
Those are two MCLs lor tuilikllly. Tha montWy ov/eraQa MCL Is 1 NTU; the two-day crmsecutive averafle MCL Is SNTLI. •
RADIONUCUDES
Beta partkte and photon activity ((ormerV man-made radionuclides)
Gross alpha parttele activity Fladium 226/228 Radon Uranium
T T T
1 T
1 T
mrem/yr zero 15 pCI/I zero 5 pC|/l zero . -
zero zero
1 1 1 1
1
^ c ? - 4 iTuem/yj
^.f - - I - 29pC|/I I - 160 pCi/1 I - 160 pC|/l I
A A A A
A AR100431
^ i . ; i ^ i4 . l - J ' - - " J - - ••
MfCnonioi.OGY
^m^ NIPDWn MCLG idGL
Cryptospoiidium
Glanila tambJia
LeQhnella
Standard Plate Count
L
F
F«
F»
TotaJ Colifofms (Current) F
.Total CoUfomns (after 12/31/90) F
Turbidity (before 1/1/91) F
Tufbkltty (after 12/31/00) F
.Viruses F*
yes
yes
zero
zero
NA
NA ..
zero
f ^
NA
zero
TT
TT
. TT
varies
* *
1 and 5 NTU
. .PS -
TT
AR100432
') § ^FCONDAriY MAXIMUM CONIAMlTJAMf! B/^U^
/ W 1 W Papa 10
Ct}?fP*cate I ffl?tt»ff* I SMCLs
Jmo/L-
Aluminum | Chloride j Color 1 Copper Coqoslvilv Dichlorobenzene -o Dichlorobenzeno -p Ethylbenzene Fluoride Foaminn Anents nexaciilorocryclopentadiena Iron Manganese Odor Pentachlorophenol pH Silver Sulfate Toluene Total Dissolved Solids (TD) Xylene Zinc
P 1 F 1 F 1 F 1 F 1 P P P
1 F 1 F
1 F 1 F 1 F 1 P
F P F
1 P 1 F 1 P * 1 F
0.05 to 0.2 250
15 color units 1
non-corrosive 0.01 0.005 0.03 2 0.5
1 o.ooa 0.3 0.05
3 threshold odor numbers 0.03
1 6.5 - 0.5 0.09
250 1 0.04 1 500 1 0.02 1 5 ^
* status Codes: P - proposed. F - final
AR100433