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Mill Creek Watershed Profile

Mill Creek Station

Watershed Overview

Mill Creek generally flows east to west before it joins the
Conestoga River. The Mill Creek Watershed is entirely within
Lancaster County, Pennsylvania. The monitoring station along
Mill Creek is located near its confluence with the Conestoga

Drainage Characteristics

Monitored Drainage Area: 54.6 square miles

Population (2010): 32,600

Total Stream Length: 75.8 miles

Stream miles impaired and dominant source/cause: 69.2 miles impaired by agriculture, industrial point sources, land development, and pathogens

Average Annual Flow at Station (NHD): 74.6 cubic feet per second (cfs)

Maximum Flow Time from Headwaters: 30 hrs. 1 min.

Mill Creek Watershed Map

Land Use (2006):

Natural Gas Drilling Pads (as tracked by SRBC): 0

Permitted Natural Gas Water Withdrawals: 0 Frac Water Withdrawals

Public Water Supply: 77 Groundwater Withdrawals and 1 Surface Water Withdrawals

Permitted Discharges and Type: NPDES sites

Underlying Geology: Gneiss, Phyllite, Quartzite, Dolomite, Limestone, Shale