Virginia Ecological Services
Northeast Region

Lake Tecumseh Weir Project

Overview - Weir - Boat Portage - Environmental Monitoring - Studies - Construction

Environmental Monitoring - Water Quality

U.S. Fish and Wildlife Service Water Quality Reference Data recorded on September 30, 2008

Conditions: Calm. Light Winds. Little or no runoff at each site.

Site Salinity DO Temp (°C) pH Conductivity

Asheville Bridge Canal

2.7 7.8 24.4 7.1 4.9
Lake Tecumseh 1.5 6.1 24.2 7.1 2.9
Blackgut 0.2 1.4 21.1 5.6 0.4
Lago Mar Marsh 0.8 4.1 23.9 6.4 1.6
Bar Graph of Conductivity Values
Bar Hrpah of pH Levels
Bar Grpah of Temperature Values
Bar Graph of Salinity Values
Bar Graph of Dissolved Oxygen Levels

U.S. Fish and Wildlife Service Water Quality Storm Discharge Monitoring Data North Bay/Back Bay Watershed, November 5, 2008

Conditions: Raining. Winds N-NW 25-30 mph. 59° Farenheit. Runoff rapidly flowing at each site.

Site Temp (C) DO pH Turbidity Salinity (ppt)
Ocean Lakes at Dam Neck Road 15.8 12 6.5 17 0.3
Redwing Lake at Dam Neck Road 15.5 10.2 6.8 7 0.3
Lago Mar outfall above Tecumseh 14.6 12.1 6.6 7 0.1
Asheville Brideg Canal above Tecumseh 15.2 11.5 6.4 4-7 1.3
Lake Tecumseh outfall into Asheville Bridge Canal 15.5 9.6 6.5 48-67 2.0
Heritage Park outfall on Sandbridge Road 15.1 9.8 6.5 38-74 0.1
Hells Point Creek at Sandbridge Road 15.3 10.1 6.6 0-2 0.1
Asheville Bridge Canal at Sandbridge Road 15.2 11 6.5 see note 6 below 1.9
Blackgut Marsh at Sandbridge Road (reference) 14.8 8 6   0.1
Notes   State Std = 6 Neutral = 7   bay average = 2 ppt

Notes:

  1. List is arranged by distance from the bay. Those starting on the left are farthest, those on the right closest.
  2. Monitoring sites include the stormwater pond outfalls from three subdivisions (Ocean Lakes, Lago Mar, and Heritage Park) that discharge to Asheville Bridge Canal, Redwing Lake, Lake Tecumseh, Asheville Bridge Canal above and below Lake Tecumseh, and Blackgut Marsh. Blackgut serves as a non-tidal, non-channelized reference site.
  3. Samples were recorded between 11:30 am and 4:00 pm. Lake Tecumseh was recorded at the beginning and end of sampling event. Turbidity readings for Lake Tecumseh were highest during the 11:30 am event.
  4. Hell point Creek at Sandbridge Road was flwoing north into Asheville Bridge Canal rather than south to the bay.
  5. The rading for Asheville Bridge Canal at Sandbridge Road includes runoff from all sites sampled except Blackgut.
  6. NTU/Visibility conversion: 0 ntu = 5 feet, 25 ntu = 10-12 inches, 60 ntu = 5 inches

Aerial Photograph of Water Quality Montoring Locations
Credit: Aerial photograph by U.S. Department of Agriculture

U.S. Fish and Wildlife Service Water Quality Data Recorded December 23, 2008

Conditions: Calm. Light Winds. Air temperature in upper 40s.Little or no runoff at each site.

Site Temp (C) DO (mg/L) pH Turbidity (ntu) Salinity (ppt)
Ocean Lakes outfall 5.19 12.03 6.84 0.00 0.14
Redwing Canal at Dam Neck 3.43 12.60 6.93 6.70 0.07
Lake Tecumseh at HRSD 6.75 12.20 6.82 0.00 0.18
Lotus Garden 7.24 10.40 6.10 0.00 0.10
Sandbridge Road bridge 3.19 13.35 7.32 5.60 0.21
Blackgut outflow 4.73 7.53 5.73 0.20 0.13

Christopher Newport University Water Quality Reference Data Recorded October 21, 2008

Conditions: Calm. Light Winds. Air temperature in lower 60s. Little or no runoff at each site.

Location
D.O
Temp (°C)
pH
Salinity (ppt)
Turbidity
Depth (m)
1
9.54
9.43
6.8
2.73
2.99
0.52
2
13.79
9.14
7.83
2.73
3.52
0.88
3
14.22
9.23
7.97
2.77
3.4
0.88
4
12.62
8.81
7.84
1.71
1.1
0.98
5
14.1
9.35
7.48
2.05
4.38
0.36
6
15.1
10.21
7.49
2.77
4.12
0.52
7
11.7/15.55
10.22
7.6
2.75
4.75
0.3
8
17.1/11.83
9.85
7.62
2.74
4.5
0.58
9
16.5/11.9
9.5
7.67
2.66
3.45
0.76
10
14.14/9.89
10.85
7.6
2.03
3.5
1.77
11
17.1/10.3
10.3
7.42
1.45
N/A
0.15
12
11.08
10.11
7.29
1.63
N/A
0.15
13
12.1
9.31
7.44
2.6
4.2
1.2
14
12.08
9.77
7.41
3.69
4.6
1.2

Aerial Photograph SHowing Christopher Newport University Sampling Locations
Credit: Aerial Photograph by U.S. Department of Agriculture

National Partners for Fish and Wildlife Site
Region 5 Partners for Fish and Wildlife Site

Logo for Partners for Fish and Wildlife Program

Partners for FWS

Overview

Focal Areas

Who Qualifies

Copper Creek

Lake Tecumseh

Longleaf Pine

Power Dam

South Martha Washington Wetlands

Southern Tip Ecological Partnership, Phase III

Veterans Memorial Park Dam

Completed Projects

Our Partners

Contact Us

Frequently Asked Questions

 

Last updated: December 6, 2012
All images by FWS unless otherwise noted.