Groundwater level, water quality and hydrometeorological evaluation of selected pump stations of the Laguna Water District

Date

4-2009

Degree

Bachelor of Science in Agricultural Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Aurelio Delos Reyes, Jr.

Committee Member

Rosa B. Delos Reyes, Leila T. Dominguez

Abstract

The field practice was conducted within the territorial jurisdiction of the Laguna Water District (LWD_ With the following activities: study the operation and maintenance practices of the water district; monitor groundwater level fluctuation of selected deep aquifers; evaluate rainfall, evaporation and groundwater level data using collected and secondary data and assess the water quality of selected wells and endpoints of the Laguna Water District. A typical pump station consists of the well, pump, air release valve, pressure gauge, paddle sensor, water treatment unit, magnetic flow meter and filtration unit. Pumps are either a vertical turbine or submersible pump with capacity ranging from 40HP, to 125HP, 30 and 60Hz. All pumps stations use chlorine dioxide as water disinfectant except for the Putho (STP), Tranca, and Sta, Rita pump stations that will use chlorine pellets for water treatment.Rainfall data gathered in Vega, Jubileeville, and Lamot pump stations had good linear correlation with the data from the UPLB Agromet station with coefficient of determination (R-squared value), 0.9466, 0.6670 and 0.9179 respectively. This indicates that Agromet data may be used to estimate rainfall data in the three stations. During the study period, the water level in the Vega pump station averaged 17.88 meters below ground surface (mbgs), while Jubileeville pump station and Lamot pump station averaged 9.92 mbgs and 9.22mbgs all showing no significant decline. Collected and existing groundwater level data both showed that the Jubileeville pump station had a larger water level fluctuation than Vega and Lamot stations. The deeper water level in the Vega pump station reflected the higher elevation of the location compared to the other two pump stations. All groundwater samples taken from selected pump stations passed the primary Philippine National Standard for Drinking Water. Fecal Coliform was also not detected in all samples. Some parameters particularly total dissolved solids (TDS) were noted to exceed some occasions the secondary drinking standards but are of no cause for concern.

Language

English

LC Subject

Pumping stations, Groundwater level, Water quality, Hydrometeorological stations

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

LG 993 2009 A2 T65

Document Type

Thesis

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