2020 Capaum Pond Report Card

Page 1

Nantucket Water Health Report

Capaum Pond - 2020

This Nantucket Land Council Water Report uses an index to measure the nutrient-related health of island water bodies. It provides a snapshot using monitoring data collected by the Nantucket Land Council and analyzed in a laboratory. Each Water Quality Indicator is assigned a score from 100 to 0, with 100 being pristine water and 0 representing severe nutrient pollution.

Water Quality Indicator

Score

Summary

Transparency

17

Algae in Capaum’s water column was so dense it blocked most light from reaching the bottom. Average visibility was 2.5 feet. Capaum’s max depth: ~8 feet.

Nutrient Concentration

38

High phosphorus concentrations lead to dense phytoplankton (algae) communities, including toxin producing species.

Chlorophyll-a

34

High concentrations of this common plant pigment (a measure of algae abundance) exceed healthy levels for a pond of this size.

Overall Water Quality

30

High phosphorus concentrations drove severe and lengthy harmful algal blooms.


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.