Imperial Chemical Industries, a Canadian chemical company, is proposing to discharge lime-treated and aged process water, currently held in a number of ponds on site, into the St. Clair River. The discharge will occur 10 kilometers upstream from Walpole Island, and will cause a 57 litres/second of dispersal over a 4.5 year period, with an estimated release of 3.4 million cubic metres of water (750 million gallons). First Nation of Walpole Island stauchly opposes the discharge, which could affect the traditional way of life for residents. First Nation depends on the St. Clair river for food and water, and contamination will eliminate that resource, either directly through the discharge itself or by disturbing sediments on the river bottom. With over 150 chemicals in the proposed discharge, few have published safe guideline levels.
One of the First Nation's concerns is the contamination of the river delta and 6,700 hectares (16,782) of wetlands on their land, which are crucial to the First Nation's economy. Roughly $2 million a year is generated from hunting and fishing on the wetlands.
As part of the plant closure in 1986, ICI was forced to deal with treating the remaining pond water as well as any seepage from the gypsum stacks. The chemicals of concern in the pond were:
Phosphate
Ammonia
Fluoride
2,4 & 2,6 dinitroluene
In 1991, a specialized group emerged, Phosphate Planning Committee (PPC). Its mandate was to develop a short term solution to pond water storage and a long term plan for the gypsum stacks and pond water area. Meeting from October 1991 to February 1995, they focused on solutions that did not include discharging into the St. Clair River. Instead, from the PPC, the process of reverse osmosis (RO) was implemented. However, due to problems with the system (clogging of membranes and inclement weather), this was stopped in 1994. ICI then hired consultants to reappraise the situation and to suggest options. They came up with two such options: the RO option and /or landfill. The PPC was not consulted nor asked for comment. Soon after, ICI declared its intent to seek a permit to discharge into the St. Clair River.
Gord Clarke, a lakeshore resident, states, "No one, not the Ministry of Environment, nor the chemists of the world can tell you the results of drinking water containing the substances ICI wants to dump into the St. Clair River." True, no one really knows the environmental effects of these chemicals. But, we are familiar with the operational effects of using such substances. The plant used fertilizer production technology that involved the reaction of sulphuric acid with phosphate rock to produce a high temperature mixture of phosphoric acid and gypsum. This mixture was then filtered to separate the gypsum from the phosphoric acid. The phosphoric acid was reacted with ammonia to produce ammonium phosphate fertilizers. Water pumped to the site from the St. Clair River, as well as precipitation falling on the site, was used to transport the gypsum from the phosphate fertilizer building to two settling ponds, where the gypsum was allowed to settle and the water allowed to drain. The two gypsum settling ponds were developed into a gypsum stack, as the settled gypsum increased in height. One cooling water pond was operated in conjuction with each gypsum settling pond/stack, to cool and recycle seepage and direct it to the cooling ponds. The plant left an 18 metre (60 foot) pile of gypsum by product covering 40 hectares (100 acres) and at least 2.2 billion litres (500 million gallons) of contaminated pond water that has increased over the years due to rain and snowfall.
Ron Pinson, a conservation officer within the Algonac area shared his opinion, "The government passes laws, we enforce them by writing tickets and they allow the dumping of 750 million gallons of toxic waste...how can I, with a fair conscience write up littering tickets when the government allows this type of thing to happen!"
Language Linguistic Affiliation:
Algonkian
Mother Tongue
Ojibwa
Pottawatomi
Spoken Language
English
85%
Aboriginal
11%
English & Aboriginal
7%
French & Other
1%
Nearly all of the households on Walpole Island are directly or indirectly involved in hunting, fishing and trapping activities. Recreational tourism is the number one industry. The second largest is agriculture. The third ranking sector is government services and the fastest growing. The remainder are involved in manufacturing, trade industries, transportation, communications and other utility industries, and miscellaneous commercial activites. Local facilites include an economic development and industrial-training complex. Unfortunately, during the transitional seasons, unemployment rises to nearly 70% for the whole reserve.
Further, Walpole Island First Nation called into question the thoroughness of the risk assessment performed by ICI. First Nation states that 14 substances have been addressed in the risk assessment. Thus, they filed a petition to oppose the discharge into the St. Clair River. According to the petition, some of these substances have been directly linked to impacts on human health, and the should be investigated further. Also, First Nation believes that the risk assessment did not evaluate the pre-existing or future potential sources of contamination in the river. The possibility that the controlled discharge could interact with the existing substances and cause environmental or health problems needs to be addressed. Another possibility is that the addition of the discharge to the existing sediment in the river could have adverse reactions.
ICI Canada Inc. Funding Decision.
Peters, Marcia. 1996. Bkejwanong Stands Fast on Toxics in the St. Clair River.
Walpole Island First Nation Petition: for the referral of this project to a review panel pursuant to the provision of the Canadian Environmental Assessment Act. S.C. 1992, s. 48, as amended.
Reilly, Linda. 1996. Department of Economic Development, Walpole Island. Personal Contact.
Contact for further information:
Walpole Island First Nation
Heritage Center RR #3
Wallaceburg, Ontario N8A 4K9
Canada