Crawford Lake
Crawford Lake
Observation wells at Crawford Lake were installed in 2023 by WSA as replacement of the abandoned Blucher site nearby. Test drilling encountered multiple aquifer zones, including Forestry Farm Aquifer and Meacham Aquifer. Both aquifers are important resources for domestic and industrial users.
Crawford Lake A is completed at a depth of 110 metres into the Empress and/or Mennon member sands. Collectively, these sands are over 200 feet thick and form the Meacham aquifer at this site. Differentiation between the sand members is difficult without intermediate layers of till.
Crawford Lake B and C were completed into Lower Floral and Upper Floral formations (33 m and 18 m deep, respectively). Stratigraphically, the sands within Floral Formation correspond to the Forestry Farm aquifer.
Water levels in Craford Lake observation wells range between 519 – 520 metres above sea level. This is about 2 metres below ground surface and consistent with nearly flowing conditions observed in this area. Highest water levels are observed in the deepest well, Craford Lake A.
Water from well Craford Lake A has TDS of about 2,700 mg/L and sodium sulphate type water. Water from wells Crawford Lake B and C has TDS of about 1,400 mg/L and calcium-bicarbonate/sulphate type water. All wells show naturally elevated arsenic levels that are slightly above the maximum allowable concentration for drinking water.
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