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Research about Bartholomew County, Indiana

Source-linked reports with geographic coverage including Bartholomew County, Indiana.

5 recordsLinked to original sources
USGS1979

A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for East Fork White River, Bartholomew County, Indiana

The Indiana State Board of Health is developing a State water-quality management plan that includes the establishing of limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in East Fork White River was used to develop alternatives for future waste loadings that would be compatible with Indiana stream water-quality standards defined for two critical hydrologic conditions, summer and winter low flows. The model indicates that benthic-oxygen demand and the headwater concentrations of carbonaceous biochemical-oxygen demand, nitrogenous biochemical-oxygen demand, and dissolved oxygen are the most significant factors affecting the dissolved-oxygen concentration of East Fork White River downstream from the Columbus wastewater-treatment facility. The effect of effluent from the facility on the water quality of East Fork White River was minimal. The model also indicates that, with a benthic-oxygen demand of approximately 0.65 gram per square meter per day, the stream has no additional waste-load assimilative capacity during summer low flows. Regardless of the quality of the Columbus wastewater effluent, the minimum 24-hour average dissolved-oxygen concentration of at least 5 milligrams per liter, the State's water-quality standard for streams, would not be met. Ammonia toxicity is not a limiting water-quality criterion during summer and winter low flows. During winter low flows, the current carbonaceous biochemical-oxygen demand limits for the Columbus wastewater-treatment facility will not cause violations of the in-stream dissolved-oxygen standard.

Indiana↗
USGS1979

Effects of pumping on ground-water levels near Taylorsville, Bartholomew County, Indiana

A two-dimensional digital flow model was used to estimate the effects of continuous pumping of a public-supply well field on the ground-water levels near Taylorsville, Indiana. Results of the modeling showed that the water levels would decline from less than 1 to about 4.5 feet within the study area and a maximum of 1 to 2 feet in Taylorsville in response to a pumping rate of 700 gallons per minute. Model results also show that the ground-water system would reach steady state in approximately 5 years after pumping begins. Corrections applied to water-level declines indicated by the model, to account for the effects of partial penetration of the aquifer by wells, showed that these effects, although substantial in the pumping wells, are negligible 200 feet from the wells.

Indiana↗
USGS1976

Digital-model analysis to predict water levels in a well field near Columbus, Indiana

Columbus, Indiana, obtains its water supply from six municipally owned wells southwest of the city. The wells are screened in an outwash sand and gravel aquifer that was deposited by glacial melt water in a preglacial bedrock valley. The well field is midway between the East Fork White River and the western edge of the valley. A digital model was used to determine the effects of two pumping plans on the outwash sand and gravel aquifer. In pumping plan 1, a continuous pumping rate of 1,400 gallons per minute (88 litres per second) for 10 years in each of the city's six existing wells was simulated with the model. Model results of plan 1 indicate that the water levels in the area of the well field would be lowered more than 20 feet (6 metres) and that drawdowns in the wells would approach 35 feet (11 metres) after 10 years' pumping. Pumping plan 2 had two stages of pumping. In the first, a continuous pumping rate of 1,400 gallons per minute (88 litres per second) for 5 years in each of the city's six existing wells was simulated with the model; the second stage of pumping plan 2 differed from stage 1 only in that five planned wells were added to the six existing wells. Model results of plan 2 indicate that water levels in the area of the well field would be lowered as much as 40 feet (12 metres). Drawdown at two of the well sites would approach 60 feet (18 metres), leaving less than 15 feet (5 metres) of the initial 70 feet (21 metres) of saturated thickness at the two wells after 10 years' pumping.

Indiana↗