Uplands Park, Timber Trails and The Dairy Waste Water Treatment Facilities
Sandy Lake Watershed Study Final Report
AECOM, 2014. 131 pages. History, maps etc. From the document:
Uplands Park – WWTF
The Uplands Park Wastewater Treatment Facility (Figure 1) was built in 1969 and consists of a primary clarifier, a trickling filter with rock media, a secondary clarifier, and hypochlorite disinfection. The plant has a rated capacity of 91 m3 /day with a peak capacity of 178 m3 /day, and serves a population of approximately 170 people. The effluent discharge criteria is 20 mg/L for both biochemical oxygen demand (BOD) and total suspended solids (TSS). In 2009 the plant was upgraded to ultraviolet disinfection (Halifax Water 2008). The plant discharges approximately 40 m3 of treated effluent per day into a wetland/creek approximately 3.5 km upstream of Sandy Lake (T. Blouin, Halifax Water, pers. comm.). In the early 2000s sewage leaks from broken sewer lines southwest of Sandy Lake affected lake water quality. Boil water and no swim advisories for Sandy Lake were issued by the municipality. Following the breaks, the force mains were replaced by Halifax Water (K. Mackenzie, Halifax Water, pers. comm.).
The Timber Trails mobile home park is serviced by communal septic systems. In 2008, North West Community Council entered into a development agreement to enable an expansion of the Timber Trails mobile home park in support of upgrading its old sewage system. The old system had reportedly suffered from overflows and seepage during heavy rain events. As of August 2012, the park expansion has not occurred but detailed engineering of the new waste water treatment facility was underway (HRM Staff Report 2012). Since then, the waste water treatment facility has been upgraded but is not yet operational (A. Bone, HRM, pers. comm.)
[View also: Development Agreement Timber Trails Mobile Home Park Northwest Planning Advisory Committee Sep 11, 2009]
The Farmers Dairy facilities may have had impacts on water quality since it was constructed in the early 1970s. Erosion from areas logged prior to construction may have resulted in lake siltation in the early 1970s. Treated wastewater discharges from the dairy were associated with water quality impacts as reported by lakeside residents in the 1980s (Dalhousie 2002). The Farmers Dairy currently has a primary wastewater treatment facility consisting of two open-air lagoons. Discharge from the lagoons is directed to the municipal sanitary and the Mill Cove Wastewater Treatment Plant (T. Blouin, Halifax Water, pers. comm.).