Abstract

In April, 1983, sewage effluent discharge from the Maitland and Winter Park sewage treatment plants was diverted from Lake Howell to the Iron Bridge Regional Sewage Treatment Plant. The sewage treatment plants of the cities of Winter Park and Maitland had been discharging into Lake Howell since 1927 and 1962, respectively. These point sources had contributed 95% of the total phosphorus and 69% of the total nitrogen budgets for Lake Howell. Physico-chemical parameters were monitored monthly for two years chemical parameters were monitored monthly for two years from January, 1983 through December, 1984. Annual mean values fro chlorophylla, pH, Secchi disc transparency, and water temperature were found to be a higher during the second year (1984). Annual mean values for alkalinity, dissolved oxygen, and pheophytina (non-functional chlorophylla) were higher during 1983. Chemical parameters were monitored quarterly for 1983 and 1984 for comparison with data obtained prior to the sewage diversion from Lake Howell. Biological oxygen demand, nitrate nitrogen, total kjeldahl nitrogen, orthophosphate, and total phosphate were found to decrease over all years compared, from 1978 through 1985.

Graduation Date

1986

Semester

Spring

Advisor

Osborne, John A.

Degree

Master of Science (M.S.)

College

College of Arts and Sciences

Degree Program

Biology

Format

PDF

Pages

63 p.

Language

English

Rights

Public Domain

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0020354

Included in

Biology Commons

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