Wastewater effluent discharge limitations, WTC site, Jan 2001

NYC 9/11 Public Portal Document

NEW YORK CITY DEPARTMENT OF ENVIRONMENTAL PROTECTION BUREAU OF WASTEWATER TREATMENT

LIMITATIONS FOR EFFLUENT DISCHARGE TO SANITARY OR COMBINED SEWERS

Project Name/Location WTC - South Projection Date': January 2,2001

Sample Treatment Parameter Limitations Units Note Results * Over / Under Required

Temperature <150 DegF not measured

Total Petroleum Hydrocarbons 50 19.2 NO

pH 5-11 SU's 8.09 NO

Cadmium 2 PP"i Daily Avg. 0.69 ppm <0.05 NO

Chromium (total) 5 ppm <0.05 NO

Copper 5 ppm <0.05 NO

Lead 2 ppm <0.05 NO

Mercury 0.05 ppm <0.002 NO

Nickel 3 ppm <0.05 NO

Zinc 5 PP*^ <0.05 NO

Flash Point >140 Deg F >140 NO

Benzene 134 PPb Method 602 <5 NO

Ethylbenzene 380 Ppb Method 602 <5 NO

Toluene 74 PP*’ Method 602 8 NO

Xylenes 74 £Pb Method 602 <5 NO EPA method 608 only with PBC's (total) 1000 PPl MDL = 65ppt All below Detection Limit of 66 ppb

Total Suspended Solids No Limit 17 NO

Tetrachloroethylene 164 ppb <5 NO

MTBE 10 ppb 65 55 YES

Napthalene 47 ppb <5 No

Other ppb

• Indicate test data origin Independent Testing Labs - College Point, NY - sample collected 12/13d

Grab sample from pump discharge

*• Analysis for PCB's are required ONLY if BOTH conditions listed below are met: 1) if proposed discharge > 10,000 gpd 2) if duration of a discharge > 10 days

CITY_2 IMCl 0 0_Ci 0 0 6 4 4 310 NYC-WTC_000186630