August Nutrient Samples In – All Locations Sampled

The August nitrate, total phosphorus, and fecal coliform sampling results have been added to our tracking table and the Water Quality Monitoring Program page of the website.

The results for nutrients (nitrogen and phosphorus) the pollutants that cause algae blooms and excess aquatic weed growth are worse (higher) than last month. Nitrogen in particular is many times higher than any reasonable instream water quality criterion would allow and many times our nitrate target for concern. Algae blooms and excessive plant growth is currently evident throughout the watershed.

This underscores the need for the wastewater treatment plants (WWTPs) in the … Continue reading

July Sampling Results In

The July sampling results are in and available at the Water Quality Monitoring Tab above (click on the sample bottles picture on the monitoring program home page).  While not as bad as last year’s dry year we are seeing nitrate values 2 to 3 times the water quality target value of 0.4 mg/l.  This underscores the need for wastewater treatment plants to continue with their programs to upgrade the plants to remove nitrogen and for municipalities, state agencies, and the public to identify ways to control nonpoint (a.k.a. non-wastewater treatment plant) sources of nitrogen.

TRWA Sampling Volunteers Score Another Complete Data Set For May

The TRWA Sampling Volunteers collected another complete data set from all 19 monitoring locations in May.  The results to date for 2017 as well as last year’s results may be found on the Water Quality Monitoring tab.  

Spring due to cold water and high flows generally is the time of year with the highest water quality.  In May the rivers exceeded the nitrate level of concern by a small amount at three locations and a more significant amount at the Matfield River location.  The fact that high flows didn’t cause bacteria problems is very good news reflecting favorably on … Continue reading

TRWA Monthly Volunteer Sampling Began April 11th

On Tuesday April 11th TRWA began the 2017 sampling season. Almost 30 trained volunteers sampled all 19 watershed sampling locations. Despite seasonal high flows and dilution we found elevated nitrogen levels at seven locations in April although levels were substantially lower than the peaks measured during last summer’s drought.  To see our sampling results for 2017 and 2016 click on the Water Quality Monitoring tab at the top of the home page and then the picture of the sample bottles.

The Taunton River carries a high percentage of treated wastewater during the summer. Water quality and aquatic life diversity has … Continue reading

2016 Water Quality Report Card Issued

TRWA issued its 2016 Water Quality Report Card. TRWA monitors 19 locations along the Taunton River and its tributaries. A major concern for the watershed is nutrient pollution from nitrogen. Nitrogen levels in the main stem are often 2-5 times recommended levels and much higher in tributary streams. High nutrient levels fuel algae and rooted aquatic plant blooms limiting biodiversity in the watershed. Currently about 66% of the nitrogen load comes from wastewater treatment plants which are being required to upgrade to remove excessive nitrogen loads from their discharges over the next five years.

Adult Sea Lamprey Sighting on the Nemasket

This past May, a dead adult sea lamprey was observed at Oliver Mill Park in Middleborough. The fish had migrated up the river to spawn on the Nemasket and having completed its life cycle, died and was washed up on the banks. It was 30” long.

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There are two lamprey species native to Massachusetts waters, the American Brook Lampry (Lethenteron appendix) (which is a threatened population in the state) and the Sea Lamprey (Petromyzon marinus).

The fellow found … Continue reading

Diamondback Terrapin Study

terrapin_study_02The TRWA is pleased to announce it will be funding a technician to formally investigate the Diamondback Terrapin (Malaclemy terrapin) population of Assonet Bay located in Southern Massachusetts. This population and its nesting beach have been documented for several years, but no rigorous studies have been conducted to determine and record the abundance, sex ratio, or age structure of this population. Such a study would provide crucial information for conservation and management of this, and other populations of … Continue reading