Groundwater recharge from Long Lake, Indiana Dunes National Lakeshore

Conference · Wed Jan 01 04:00:00 EST 1992 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:5597919

Isiorho, S A; Beeching, F M ^[1]; Whitman, R L; Stewart, P M ^[2]; Gentleman, M A

---

1. Indiana Univ., Fort Wayne, IN (United States). Geosciences Dept.
2. National Park Services, Porter, IN (United States). Indiana Dunes National Lakeshore

Long Lake, located between Lake Michigan and the Dune-complexes of Indiana Dunes, was formed during Pleistocene and Holocene epochs. The lake is currently being studied to understand the detailed hydrology. One of the objective of the study is to understand the hydrologic relationship between the lake and a water treatment holding pond to the northeast. Understanding the water movement between the two bodies of water, if any, would be very important in the management and protection of nature preserves in the area. Seepage measurement and minipiezometric tests indicate groundwater recharge from Long Lake. The groundwater recharge rate is approximately 1.40 to 22.28 x 10[sup [minus]4] m/day. An estimate of the amount of recharge of 7.0 x 10[sup 6] m[sup 3]/y may be significant in terms of groundwater recharge of the upper aquifer system of the Dunes area. The water chemistry of the two bodies of water appears to be similar, however, the pH of the holding pond is slightly alkaline (8.5) while that of Long Lake is less alkaline (7.7). There appears to be no direct contact between the two bodies of water (separated by approximately six meters of clay rich sediment). The geology of the area indicates a surficial aquifer underlying Long Lake. The lake should be regarded as a recharge area and should be protected from pollutants as the degradation of the lake would contaminate the underlying aquifer.

• OSTI ID: 5597919
• Report Number(s): CONF-921058--
• Conference Information: Journal Name: Geological Society of America, Abstracts with Programs; (United States) Journal Volume: 24:7
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
540350 -- Environment
Aquatic-- Site Resource & Use Studies-- (1990-)
58 GEOSCIENCES
580000 -- Geosciences
AQUIFERS
DEVELOPED COUNTRIES
GROUND WATER
HYDROGEN COMPOUNDS
HYDROLOGY
INDIANA
LAKES
MANAGEMENT
NORTH AMERICA
OXYGEN COMPOUNDS
PONDS
RECHARGE
RESOURCE MANAGEMENT
SETTLING PONDS
SURFACE WATERS
USA
WATER
WATER TREATMENT PLANTS