Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, Philippines

The study was conducted in the Municipality of Panglao, Bohol, Philippines to investigate water quality in 81 wells using parameters such as pH, dissolved oxygen (DO), electrical conductivity (EC), total dissolved solids (TDS), sodium chloride (NaCl), temperature, and nitrate-N. Spatial variation is...

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Main Author: Ma. Grace Sumaria
Format: Article
Language:English
Published: Visayas State University 2024-06-01
Series:Annals of Tropical Research
Subjects:
Online Access:https://atr.vsu.edu.ph/article/view/7
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author Ma. Grace Sumaria
author_facet Ma. Grace Sumaria
author_sort Ma. Grace Sumaria
collection DOAJ
description The study was conducted in the Municipality of Panglao, Bohol, Philippines to investigate water quality in 81 wells using parameters such as pH, dissolved oxygen (DO), electrical conductivity (EC), total dissolved solids (TDS), sodium chloride (NaCl), temperature, and nitrate-N. Spatial variation is analyzed through ArcGIS 10.6 and regression analyses. Results showed that about 40% of the study area’s nitrate concentration exceeded the maximum contaminant level (MCL) of 10mg L-1 as set by US EPA under the Safe Drinking Water Act. The water quality was poor mostly in barangays with high-density built-up and along the foreshore. On the average, pH was 7.44, DO was 4.27mg L-1, EC was 3954.82µS, TDS was 3480.60mg L-1, NaCl was 4377.50ppm, temperature was 29.36ºC and nitrate was 11.05mg L-1. The multiple regression analysis showed that nitrate is significantly predicted by well to shoreline distance and 2D IDW. The T-test results indicated that the level nitrate concentration differ significantly between the types of well which was found to be higher in shallow wells and lower in deep wells. Based on the overall results, the following recommendations were drawn for the Municipality of Panglao to implement: a) install a wastewater treatment facility to address the unfavorable presence of nitrate and other contaminants in the groundwater, and b) enact relevant ordinances to stop the rising influences of nitrate concentration and other water contaminants of its groundwater which are detrimental both to its growing population and to the environment.
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spelling doaj-art-b541325291644f93aa9a2d0919a88bdb2025-01-10T02:31:53ZengVisayas State UniversityAnnals of Tropical Research0116-07102704-35412024-06-01461120139https://doi.org/10.32945/atr4619.2024Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, PhilippinesMa. Grace Sumaria0https://orcid.org/0009-0006-4339-884XDepartment of Agricultural and Biosystems Engineering, Visayas State University, Baybay City, Leyte, PhilippinesThe study was conducted in the Municipality of Panglao, Bohol, Philippines to investigate water quality in 81 wells using parameters such as pH, dissolved oxygen (DO), electrical conductivity (EC), total dissolved solids (TDS), sodium chloride (NaCl), temperature, and nitrate-N. Spatial variation is analyzed through ArcGIS 10.6 and regression analyses. Results showed that about 40% of the study area’s nitrate concentration exceeded the maximum contaminant level (MCL) of 10mg L-1 as set by US EPA under the Safe Drinking Water Act. The water quality was poor mostly in barangays with high-density built-up and along the foreshore. On the average, pH was 7.44, DO was 4.27mg L-1, EC was 3954.82µS, TDS was 3480.60mg L-1, NaCl was 4377.50ppm, temperature was 29.36ºC and nitrate was 11.05mg L-1. The multiple regression analysis showed that nitrate is significantly predicted by well to shoreline distance and 2D IDW. The T-test results indicated that the level nitrate concentration differ significantly between the types of well which was found to be higher in shallow wells and lower in deep wells. Based on the overall results, the following recommendations were drawn for the Municipality of Panglao to implement: a) install a wastewater treatment facility to address the unfavorable presence of nitrate and other contaminants in the groundwater, and b) enact relevant ordinances to stop the rising influences of nitrate concentration and other water contaminants of its groundwater which are detrimental both to its growing population and to the environment.https://atr.vsu.edu.ph/article/view/7groundwater water qualitynitrate levelnitrate contamination
spellingShingle Ma. Grace Sumaria
Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, Philippines
Annals of Tropical Research
groundwater water quality
nitrate level
nitrate contamination
title Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, Philippines
title_full Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, Philippines
title_fullStr Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, Philippines
title_full_unstemmed Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, Philippines
title_short Assessment of the quality of groundwater wells in the island Municipality of Panglao, Bohol, Philippines
title_sort assessment of the quality of groundwater wells in the island municipality of panglao bohol philippines
topic groundwater water quality
nitrate level
nitrate contamination
url https://atr.vsu.edu.ph/article/view/7
work_keys_str_mv AT magracesumaria assessmentofthequalityofgroundwaterwellsintheislandmunicipalityofpanglaoboholphilippines