Herricks Community Water Quality Laboratory Report

Research conducted July - August 2025

Special thanks to Nasheela Khan, Sheila Subaiya, and Jobin Arthungal for donating your water samples.

Research Question

How do water quality parameters from three different household samples compare to established safe ranges, and what are the potential health implications of any deviations?

Hypothesis

It is hypothesized that while most parameters will fall within safe ranges, some samples may show elevated nitrate levels or imbalances in chlorine, which could pose health risks.

Background Research

Water quality is a critical determinant of public health. Safe drinking water must comply with recommended ranges for parameters such as hardness, chlorine, nitrate, fluoride, pH, and others. Elevated nitrate levels can be harmful to infants, low chlorine can allow microbial contamination, and imbalances in pH can corrode pipes and leach metals. Regular monitoring is therefore essential.

Data Analysis

Graphical comparison of the samples is shown below:

Analysis of the Data

Sample 1 shows moderate hardness and balanced pH, but acceptable nitrate levels. Sample 2 shows elevated nitrate levels, which are concerning for long-term health. Sample 3 shows very low hardness and chlorine, which increases risks of corrosion and microbial growth, and also elevated nitrate levels. All three samples displayed acceptable pH values (7.5).

Conclusion

The water quality analysis demonstrates that while most parameters fall within safe ranges, nitrate levels in Sample 2 and Sample 3 exceed recommendations, and the absence of chlorine in all samples could pose microbial risks. Regular monitoring, treatment interventions, and community awareness are recommended to ensure long-term water safety.