NYC-WTC_000230964

NYC 9/11 Public Portal Document

10/1E/2001 .14:13 71S729S677 TWE METRO t3?0UP PAGE 02/14

THt METRO CROUP, INC. ^st&rSysi&ms ^sib

50-23 itventrThifa Street Lwigtstai^atY. NV 11101 TEL: {718}'729-/200 FAX; (718) 73$-8577

HATIQNAI. DRINKING WATER STANDARBS

Prmmry Standards CPS)'are legally eoflsrceable stsmdardSj d^guKi to pro&ct public water systems and reduce risks to public .health.

Secondary Standards (SS) are guideliaes regulating contaminattts that rany cause skin or tooth disooloration, or may affect taste, odor, color or pdWic acceptance. They may be legally onforceable.

Coiatenjinant jmtxiiuuiu UveI PS/ SS I Contaminant maaimuiH level PS/SS Alvmtmsn 0,03-02 ppm SS Odor Threshold no, 3 SS Arninic 0.005 ppm P5 Orgaiuci (PCS'sj Zero PS 250 ppm SS Osoiiins Zerch-0-003 ppm PS Chromium 0.1 ppm PS Or^mo! fSolve/ta) Zero-0.6 ppm PS Color 15 color laiits SS pH 6.5-8,5 SS

Copper 1,3 ppm SS Silver 0,1 ppm SS Corrosivity Non-corrosive SS Sulfate 250 ppm SS 0.2 ppm PS Tiftit! lOiis vlvisti Soliiif 500 ppm SS Ehtorids PS 5 N&vK Units SS Fooitt 0.5 ppm SS Zinc 5 PP® SS Iron 0.3 ppm SS Ciart&i larnbha Zero/Ti PS Lead 0.015 ppm PS bacteria (HPC) 500 CFU/nd SS Manganese. 0.05 ppm SS Logionella ZeroZXT PS Mercury 0.02 ppm PS Fecal soUfartn Zea:(3 PS Hitrati 10 ppm PS Vimsss Z^-o/TT PS I

ES/NmVsy£>50]$9

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