Ambient Rivers Monitoring in NH Coastal Watersheds 2004

The Department of Environmental Services (DES) received funding from the New Hampshire Estuaries Project (NHEP) to conduct monitoring activities in 2004. The activities described in this report were led by the DES Watershed Assistance Section and involved water monitoring in tidal tributaries. These monitoring activities were completed with the overall purpose of improving the understanding of water quality trends. The Department of Environmental Services completed all tasks as planned. This report includes the sample collection information, field data, and laboratory data. Data summaries and interpretations will come at a later time in other DES and NHEP publications

Ambient Rivers Monitoring in the Great Bay Estuary Watershed 2006

The Department of Environmental Services (DES) received funding from the New Hampshire Estuaries Project (NHEP) to conduct monitoring activities in 2006. The activities described in this report were led by the DES Watershed Assistance Section and involved water monitoring at the head-of-tide in nine tidal tributaries. Other DES staff conducted laboratory analyses. These monitoring activities were completed with the overall purpose of improving the understanding of water quality trends. DES completed all tasks as planned. This report includes the sample collection information, field and laboratory data, and quality assurance information. Data summaries and interpretations will come at a later time in other DES and NHEP publications

Peirce Island Pool Discharge Elimination

The Peirce Island Pool is owned by the City of Portsmouth and serves approximately 19,000 swimmers each summer. The pool was originally constructed in the 1930s and updated in the 1970s and again in the mid 1990s. The pool’s 800,000 gallons of water were cleaned through a rapid sand filter. The filter was then cleaned through a backwash process and that wastewater was discharged directly into the Piscataqua River which is part of the Great Bay Estuary. The City sought and was awarded funds through the New Hampshire Estuaries Project (NHEP) to eliminate the direct discharge to the River. The NHEP Workplan reference number for this project is 03-A-3. The goal of the Peirce Island Pool Discharge Elimination project was to remove the direct discharge of pool filter backwash that flows into the Piscataqua River

Ambient Rivers and Shellfish Tissue Monitoring in New Hampshire Estuarine Watersheds 2003

The Department of Environmental Services received funding from the New Hampshire Estuaries Project (NHEP) to conduct monitoring activities in 2003. The activities involved water monitoring in tidal tributaries and contaminant analyses of mussel tissue. These monitoring activities were completed with the overall purpose of improving the understanding of water quality trends and the concentrations of toxic contaminants in shellfish tissue. The Department of Environmental Services, in cooperation with the University of New Hampshire Jackson Estuarine Lab and others, completed all tasks as planned. This report includes the sample collection information, field data, and laboratory data, with the exception of contaminant concentration data for shellfish tissue. The data for the mussel tissue contaminants will be available at a later date. Data summaries and interpretations will come at a later time in other New Hampshire Department of Environmental Services and New Hampshire Estuaries publications

Ambient Rivers Monitoring in the Great Bay Estuary Watershed 2005

The Department of Environmental Services (DES) received funding from the New Hampshire Estuaries Project (NHEP) to conduct monitoring activities in 2005. The activities described in this report were led by the DES Watershed Assistance Section and involved water monitoring in tidal tributaries. Other DES staff conducted laboratory analyses. These monitoring activities were completed with the overall purpose of improving the understanding of water quality trends. The Department of Environmental Services completed all tasks as planned. This report includes the sample collection information, field and laboratory data, and quality assurance information. Data summaries and interpretations will come at a later time in other DES and NHEP publications

Oxford Avenue Sewer Extension Project in the City of Portsmouth

Financial support provided by the New Hampshire Estuaries Project (NHEP) to the City of Portsmouth helped with the cost of installing a new sewer line at Oxford Avenue that replaced the on-site subsurface disposal systems (septic systems) for fourteen homes. The homes border the Great Bog and Pickering Creek watersheds. The construction occurred during the autumn of 2004

Tracking Bacterial Pollution Sources in Hampton Harbor

Fecal-borne microorganisms impact many shellfish-growing waters in coastal New Hampshire. Watersheds are often subject to fecal contamination by a variety of sources and efforts to improve water quality are often limited because of lack of information on which contaminant sources are most significant. Ribotyping and other microbial source tracking methods are useful new tools for providing information on the sources of fecal-borne bacterial contaminants in surface waters. New Hampshire has areas of abundant oyster (Crassostrea virginica) and clam (Mya arenaria) resources, the latter being most important in Hampton Harbor. In this study, Escherichia coli isolates (bacteria colonies) were obtained from water samples collected from ten sites in Hampton Harbor year-round during both dry and wet conditions. A library of known E. coli isolates was created from twenty different potential source species in the New Hampshire coastal watershed, including humans, livestock, pets, wildlife and avian species. The ribosomal RNA DNA of E. coli isolates was analyzed using ribotyping in which the patterns of ribosomal DNA were detected using chemiluminescence, then optimized and analyzed using GelCompar II software. A total of 249 isolates from the twenty known source species were used as a reference to identify sources for 390 unknown isolates from water samples taken from August 2000 through October 2001. Banding patterns for water samples and source species isolates were considered to be the same if there was 80% or greater similarity between patterns. Overall, sources for 62% of the isolates were identified

Ambient Water Quality and Shellfish Tissue Monitoring in New Hampshire Estuaries 2001 and 2002

The Department of Environmental Services received funding from the New Hampshire Estuaries Project (NHEP) to conduct monitoring activities in 2001 and 2002. The monitoring activities involved water monitoring in tidal tributaries and estuarine waters and tissue monitoring of mussels, clams and oysters. These monitoring activities were a direct result of recommendations made by the NHEP Technical Advisory Committee and the Monitoring Plan and were completed with the overall purpose of improving the understanding of water quality trends and the concentrations of toxic contaminants in shellfish tissue. The Department of Environmental Services, in cooperation with the University of New Hampshire Jackson Estuarine Lab, completed all tasks as planned except for the 2002 estuarine monitoring for nutrients and microbial indicators. These two monitoring activities were funded and conducted through the New Hampshire National Coastal Assessment Program for 2002. All raw data except for Gulfwatch data are presented in this Final Project Report. Data summaries and interpretations will come at a later time

Evaluating the Stormwater Treatment Performance of AbTech Industries Smart Sponge® Plus, Landry, N

The ability of AbTech’s Smart Sponge® Plus to remove fecal-borne bacteria from stormwater was evaluated in a storm drainage system located in Seabrook, New Hampshire. The Smart Sponge ® Plus was installed into a water quality inlet and samples were collected from influent (pre-treatment) and effluent (post-treatment) for analysis of bacterial concentrations and loadings during 15 storm events from September 3, 2003 to May 24, 2004, excluding winter months. The 15 storms included events with a range of rainfall intensities and amounts, as well as accompanying runoff volumes. Flow weighted composite samples were analyzed for fecal coliforms, Escherichia coli and enterococci to determine if concentrations were lowered as stormwater passed through the Smart Sponge® Plus material. In most cases, bacterial concentrations were reduced within the treatment system, but to varying degrees. The efficiency ratio based on reduction in event mean concentration for each bacterial indicator in the flow was calculated for each storm event. The values ranged most widely for fecal coliforms, whereas the range of ratios was narrower and the values were more consistent for enterococci. The overall load reductions for the bacterial indicators were 50.3% for fecal coliforms, 51.3% for Escherichia coli and 43.2% for enterococci. Relatively consistent pH values were observed in influent and effluent samples. The overall range of pH values was large, ranging from 5.21 units in influent from storm event #11 to 7.64 units in influent from storm event #1. Conductivity values were gr eater in the effluent in 14 of the 15 storm events, especially in storm events #12 and #13 when effluent conductivities were \u3e50% higher than influent values. Quality assurance/quality control procedures supported the methods and results of the study. Overall, the observed reductions in bacterial concentrations in post-treatment stormwater would still result in discharge of elevated bacterial levels that would continue to limit uses in receiving waters

Alien Registration- Landry, Natalie (Van Buren, Aroostook County)

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