Proceedings - Teaching and Learning Centre - Simon Fraser ...

Fraser River Action Plan 3rd Research Workshop
Contaminants Cpw
(Ave.)
Halogenated Aliphatics
Table 2: (Cont.)
Estimated Combined Sewer Overflow Concentration
Cpd
(Ave.)
Calculated Co.
(Range)
Page 99
Reference 1
(mean)
Reference 2
(range)
Estimated
Values
Chloroform ND ND ND 0.001 0.0022-0.006 0.002
Monocyclic Aromatics
Phenol (grab sample) 0.03 0.04 0.02-0.03 0.001 0.0013-0.003 0.01
Pthalate esters:
Di-octyl Phthalate ND ND ND 0.019 0.002-0.038 0.02
Polycyclic Aromatics
Naphthalene ND ND ND ND 0.0003-0.0095 0.005
All values are for total form and are in mg/L, except where noted
Reference:1: Crawford, 1984; Combined Sewer Overflow Toxic Pollutant Study
ND=no data available
2: Metro Toxicant Program, 1984, 4B. Collection System Evaluation
Parameter Values Used for Calculations
Co: Combined Sewer Overflow Concentrations (Calculated)
Cpw: Wet Day Composite Concentration (values in table)
Cpd: Ave. Dry Day Composite Concentation (values in table)
Golf Course Inventory
Since golf courses are presently being built in great numbers, especially in the Lower Fraser, it has become
a focus of some environmental concerns. This may be due in part to their high profile and intense land
management. The environmental concerns are related to surface water and groundwater quality and wildlife
protection. This project was intended to inventory golf courses within the Fraser River basin including a
further inventory of chemical use including fertilizers, herbicides and pesticides. Questionnaires were mailed
out to the 76 golf courses located in the Fraser River Basin and approximately 44 (or 58%) responded.
The project required site assessments of five golf courses, three in the Lower Mainland and two in the
northern region. In general, the golf courses practice sound environmental protection practices. However,
elevated levels of some metals such as copper, zinc, arsenic, lead, chromium and cadmium were found
(Tables 3 and 4). The highest levels were found in sediment samples. Sources of the contamination were not
determined at this time as the main thrust of the project was the Environmental Codes of Practice developed
in conjunction with the inventory information.
Car and Truck Wash Inventory
The focus of the study was to determine current practices in the industry including wash processes, chemical
use, water use, wastewater pre-treatment, wastewater discharge, etc. Furthermore, the project was to
determine if existing facilities generally discharged to sewer, storm drain or waterways. The study found a
small percentage of the operations discharging to storm drains or waterways. In addition to the inventory,
site investigations were conducted at six sites. All sites discharged to the GVRD sewer system. Analyses