A groundwater was analyzed as follows (each concentration is given as the substance itself except for alkalinity):

A Ground water was anaylzed as follows;

Co ₂ = 35 mg/L as CO ₂

Ca ²⁺ = 100 mg/L as Ca ²⁺

Mg ⁺² = 60 mg/L as Mg ²⁺

Na ⁺ = 35 mg/L as Na ⁺

Alkalinity = 300 mg/L as CaCO ₃

_{pH = 7.0}

For a water production rate of 1.0 MGD, determine chemical requirements (lime,soda,CO ₂ , all in lbs per day) and sludge production rates instead of primary recarbonation. Use 50 mg/L of excess lime, and 50 mg/L of secondary recarbonation.