Arbor Lake Water Quality External & Internal Nutrient Loading.

Slides:

Advertisements

Similar presentations

1 Carbon Cycle 9 Carbon cycle is critically important to climate because it regulates the amount of CO 2 and CH 4 in the atmosphere. Carbon, like water,

Advertisements

The Leonhardt Lagoon at Fair Park A review of current water quality and guidelines for remediation Presented by David Jones, KHA Koi & Water Garden Club.

Phosphorus in Southern Cayuga Lake and Its Tributary Streams A Public Information Forum February 27, 6-8 PM, Tompkins County Library Purpose 1.Present.

Nutrient Loading in the Klamath Basin K.A. Rykbost B.A. Charlton Oregon State University Klamath Experiment Station.

Phosphorus eutrophication in an inter-drumlin lake: causes and effects Lucy Crockford Walsh Fellow Trinity College Dublin What’s impeding this lake’s recovery?

Long-Term Volunteer Lake Monitoring in the Upper Woonasquatucket Watershed Linda Green URI Watershed Watch ,

Stabilization Ponds CE General Characteristics Quiescent and diked Quiescent and diked Wastewater enters the pond Wastewater enters the pond Organic.

Questions to answer What is the overall modeling approach (after calibration and background scenarios)? What are the WLA assumptions? How will Avista’s.

WASTE STABILIZATION POND (WSP). Advantages:Simplicity simple to construct simple to construct simple to operate and maintain simple to operate and.

Vallecito Creek Drainage Area 1. Vallecito Creek Drainage Drainage Area - 96 sq. miles (61,440 acres) Length of Tributary Streams miles Residential.

Aquatic Ecosystems Water has the ability to hold a large amount of energy. Due to this characteristic large bodies of water will take longer to heat up.

The Dead Zone: The Dead Zone: Hypoxia in the Gulf of Mexico.

Dr. Martin T. Auer MTU Department of Civil & Environmental Engineering ENVE5504 Surface Water Quality Modeling Lab 4. One-Dimensional Models Vertical Mass.

Dr. Martin T. Auer MTU Department of Civil & Environmental Engineering CE5504 Surface Water Quality Modeling Lab 5. One-Dimensional Models Thermal Stratification,

Cyanobacteria Blooms in Upper Klamath Lake

PRIMARY PRODUCTIVITY Productivity is the rate of biomass formation Primary productivity (photosynthesis) of phytoplankton can be measured directly by O.

Direct Cross-Connection (a) A Clean-In-Place system is used to direct sanitizer from a reservoir to a recently cleaned milk tank. The sanitizer exists.

Effects of Drought on Lake Almanor Water Quality

Lecture 7: The Oceans (1) EarthsClimate_Web_Chapter.pdfEarthsClimate_Web_Chapter.pdf, p

Pomme de Terre Lake Water Quality Summary Pomme de Terre Lake Water Quality Summary US Army Corps of Engineers Environmental Resources Section.

David Burger, David Hamilton 1, Conrad Pilditch 1, Julie Hall 2 & Max Gibbs 2 Nutrient dynamics in Lake Rotorua 1 Department of Biological Sciences, University.

“What Is Lake Turnover?” Post-Reading Questions. 1. What times of year does turnover typically occur? Turnover usually occurs in the spring and fall.

Assignment No. 1 [Grup 8] Figure below shows a portion of a hydraulic circuit. The pressure point B must be 200 psig when the volume flow rate is 60 gal/min.

Electricity Part 4: Power Plants, Distribution and Cooling,

All about “Dead Zones”. Zones of Oxygen Depletion.

Ocean Water Chemistry. 1.On average how many grams of salt are in a pot of ocean water? 2.What is the chemical name for salt, include the periodic symbols?

Bioreactors for the Reduction of Nutrient Transport.

Hypoxia in the Gulf of Mexico 07/03/2002.  Eutrophication is a natural process taking place in water- characterized by a development towards an environment.

Earth Sciences Seminar 1 May 2003 David Hamilton Biological Sciences University of Waikato Water quality trends in the Rotorua lakes.

What is a lake? A lake is a topographic depression (basin) in the landscape that collects water Lakes can be made by shifting tectonic plates, volcanism,

The Orange County Water District Riverbed Filtration Pilot Project Jason Keller 1, Michael Milczarek 1, Greg Woodside 2, Adam Hutchinson 2, Adam MP Canfield.

Subsurface drainage – Investigations

Cuyahoga River, 1952 Lake Erie: Progress and Regression Progress 1952 Cuyahoga River goes on fire 1969 Cuyahoga River goes on fire again 1960s and 1970s.

Lake Erie Overview Dr. Jeffrey M. Reutter, Director Ohio Sea Grant and Stone Laboratory The Ohio State University Office of Congresswoman Marcy Kaptur.

Our Backyard Waterways: Predicting a Phytoplankton Bloom.

15.1 Composition of Seawater.  The total amount of solid material dissolved in water  Mass of dissolved substances : Mass of the water sample  Shown.

Abiotic Factors and Biomes. Bodies of Water Oceans and their currents, and large lakes –Moderate the climate of nearby terrestrial environments Figure.

Introduction The environmental factors such as light, temperature and nutrients interact with each other in the marine environment and play a major role.

Filtration Observations in the Carver County WMO West Metro Water Alliance May 25, 2011 (Thanks to Kristen Larson, Carver County)

1 State of San Lorenzo River Symposium Nicole Beck, PhD 2NDNATURE April San Lorenzo Lagoon A Decade of Dry Season WQ Monitoring.

OLTAC Meeting - Oct. 31, UPSTATE FRESHWATER INSTITUTE.

Chemical Assessment Most complicated, but easiest to do. Extreme natural variations What is normal?

The Salty Ocean On average, one kilogram of ocean water contains about 25 grams of salts–that is, 35 parts per thousand. Or 3.5% salts.

 Instrumentation  CTD  Dissolved Oxygen Sensor  ADCP/ Current Meters  Oxygen Titrations  Nutrient Concentrations Circulation and Chemical Tracer.

 The study of fresh bodies of water  Lentic: standing water (lakes and ponds)  Lotic: flowing water (streams and rivers)

Characteristics of the Ocean Beth Roland Eighth Grade Science Team 5 Mountaineers.

CHESAPEAKE BAY NOTES. Estuary:  Body of water where fresh and salt water mixes  Largest of the 130 estuaries in the United States.

Oxygen and CO 2 Announcements –Openings for canoe trip? –Exams will be passed back on Monday –Project proposals due this afternoon at 5 (my office!) –Include:

Lab 5 Physical and Chemical Properties of Sea Water

Application of the Continuity Equation Dr. Eyad Abushandi.

Ocean Water. The salt has seeped into the oceans by dissolving out of the rocks, and being carried down rivers into the ocean for millions of years. Salinity-

Electricity Part 4: Power Plants, Distribution and Cooling,

Culler Lake Bathymetry: Potential Changes Following Dredging Spring 2013 Sampling Methods Class: J. Bruland, M. Dybala, N. Gunther, A. Hoffman, J. Jones,

35 Ton LAr Impurity Distribution Measurements and CFD simulation Erik Voirin – Fermilab – Thermal and Fluids Engineering Group / Engineering.

Whitefish River and Riverside Pond Water Quality Monitoring and Management Barrett Gray Mr. Spangler Whitefish High School Advanced Chemistry.

Tim Clark King County Department of Natural Resources Water and Land Resources Division Impacts of Saltwater Intrusion into an Urban Freshwater Lake.

2010 Water Quality Monitoring Activities -Medicine Lake -Twin Lake Keith Pilgrim Barr Engineering March 17, 2011 brain huser is great.

The Hydrosphere and Biosphere

Placido Bayou 2 year update followed by 5 year alum budget

Lakes by Will Kratz.

Lake Elsinore and Canyon Lake TMDL Water Quality Monitoring Update – Summary August 15, 2017.

Class #19 More Ocean Chemistry... NUTRIENT ELEMENTS ORGANIC SUBSTANCES

Lake Spokane 2012 Nutrient Monitoring Data

Hydrogeologic Investigations of the Silver Lake Wetland

The Composition of Seawater

Review of Flood Reservoir Routing

Warm-up What is ocean water made of?

Stratification.

The Impact of Water Clarity on Home prices in Manitowoc County

Presentation transcript:

Arbor Lake Water Quality External & Internal Nutrient Loading

IOWATER Monitoring Sites This map shows the locations and names of sites being monitored by IOWATER volunteers. Water samples have been analyzed monthly from the principal inlets and the one outlet since October of Hazel Creek & Wood Creek enter the lake’s north end while Hobo Drain & Hobo Creek enter the east arm of the lake.

External Phosphorus Loading Phosphorus concentrations (mg/L) are shown for each of the principal inlets and the single outlet. The total range is shown by the vertical bar and the 25th and 75th percentiles are represented by the box.

Weighted Avg. Phosphorus Load Table I shows the average Phosphorus concentrations and average flow rates of the principal inlets and the single outlet. From this, a weighted average percent P. load can be computed for each inlet, and the sum of the inlets can then be compared with the outlet. Five times as much Phosphorus enters the lake as exits the lake.

Table I - External Phosphorus Load StreamsAv. P. (mg/L) Av. Flow (L/sec) % Total Flow Wtd.Av.P( mg/L) Hazel Cr Wood Cr Hobo Dr Hobo Cr Gully Total Inflow Spillway

Lake Stratification In Summer the lake is stratified into a mixed layer of warm water on top of a cooler layer with a thermal gradient. Algal blooms in the photic zone deplete dissolved nutrients. Algae die and sink into the thermocline where bacterial decomposition releases nutrients and depletes oxygen. The result is a concentration of Phosphorus in the lower stratum of the lake.

Deep Sampling In the summer of 2006 the deeper part of the lake was sampled using a 10 ft. length of PVC pipe inserted through a styrofoam buoy and tethered to a canoe. Water was withdrawn from the pipe using a vacuum pump designed to siphon gas from the tank of a car. The volume of the pipe was computed to be 0.6 Liter. Several volumes were removed prior to taking the sample. The resulting data confirms that nutrient enrichment accompanies oxygen depletion in a stratified lake.

Lake Volumes The hypsograph is derived from the bathymetric map and is used to compute volumes shown in Table II. 75% of the lake volume lies above 2.5 meters depth.

Table II – Lake Volume Depth (m) Area (%) Area (Ac) Area (Sq. M) Vol(Cu. M.) Cum. Vol