hdc company overview, 2010
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2010 Hydrologic Data Collection Company PresentationTRANSCRIPT
Copyright 2010, Hydrologic Data Collection, LLC
Monitoring Our Monitoring Our Water ResourcesWater Resources™™
Company Overview
Copyright 2010, Hydrologic Data Collection, LLC
Knowledge and ExpertiseKnowledge and Expertise• Established in 2001• Team of Hydrologists,
Chemists, Biologists and Professional Geologists
• Over 350 years of USGS experience
• Over 50 years of private sector experience
• 2 former USGS senior hydrologists
• 9 former USGS senior hydrologic technicians
Providing a total solution for water resource monitoring
Copyright 2010, Hydrologic Data Collection, LLC
Company MissionCompany MissionHigh Quality Data• Collect and analyze data
using proven methods developed by the USGS
Rapid Turnaround• Deliver finalized data within
one week of site visits, and provide real-time data access
Cost-effective Rates• Provide high-value services
within our customers’ project budgets
Copyright 2010, Hydrologic Data Collection, LLC
Surface WaterSurface Water• Install and operate
stream flow gaging stations
• Conduct discharge measurements
• Develop stage vs. discharge ratings
• Compute unit and daily values of discharge
• Assist in NPDES, MFL, TMDL, and time-of-travel studies
Copyright 2010, Hydrologic Data Collection, LLC
Water QualityWater Quality• Installation of real-time
monitoring sites• Manual or continuous WQ
monitoring• Calibration and ongoing
site service• Vertical profiling• Automated and flow-
weighted sampling• Stormwater sampling• Pollutant concentrations
Copyright 2010, Hydrologic Data Collection, LLC
GroundwaterGroundwater• Equipment installation
and service• Manual or continuous
monitoring• Real-time ground water
networks• Low-flow sampling
Copyright 2010, Hydrologic Data Collection, LLC
TMDL StudiesTMDL Studies• Watershed assessments
– Surface water (flow, stage)– Surface water quality– Groundwater quality and
recharge rates• Data to develop and calibrate
hydrologic models• Fill data gaps
– Informational (e.g. no flow data)
– Temporal (e.g. data only collected during a drought)
– Spatial (e.g. not enough monitoring points to give the complete picture)
Copyright 2010, Hydrologic Data Collection, LLC
TMDL StudiesTMDL Studies• Determining pollutant
loads– Stage data– Rating curve– Daily average flow– Pollutant concentration
• Duration curves• Models are only as
good as the original quality/quantity of data used
• Models need regular recalibration
Copyright 2010, Hydrologic Data Collection, LLC
TMDL StudiesTMDL StudiesTotal Phosphorus Load Duration Curve
0.0
0.1
1.0
10.0
100.0
1000.0
10000.0
0 10 20 30 40 50 60 70 80 90 100
Percent of Days Flow Equaled or Exceeded (%)
Me
an
Da
ily
Str
ea
mfl
ow
(c
fs)
Higher Loads Lower Loads
Discharge of 36.4 cfs is equalled or exceeded 60% of the time
Black Line - flow duration curve for the station's period of recordRed line - load duration curve for the parameter standardBlue line - load duration curve allowing for a 10% safe margin
▲ - Water quality samples as loads plotted using the flow durationat which they were sampled.
Points above the curve represent exceedance of standards and allowable loadings
Copyright 2010, Hydrologic Data Collection, LLC
Stormwater and Meteorological Stormwater and Meteorological MonitoringMonitoring
• Water Quantity• Water Quality• Rainfall• Humidity• Wind speed and
direction• Evaporation
• BMP Efficiency
Copyright 2010, Hydrologic Data Collection, LLC
Stream Restoration MonitoringStream Restoration Monitoring• Effectiveness
evaluations
Copyright 2010, Hydrologic Data Collection, LLC
Other ServicesOther Services• Dam and reservoir
monitoring• Wetland and marsh
monitoring• Tide and coastal
monitoring• Time-of-travel studies• Reactivation of
decommissioned gages• Crest stage and flood
monitoring
Copyright 2010, Hydrologic Data Collection, LLC
Methodology and EquipmentMethodology and Equipment• Follow established USGS
protocols• Use cutting-edge
technology • Expertise in all major
instrumentation• Full installation and
service capability• Years of training and
field experience • Data is collected to
USGS standards
Copyright 2010, Hydrologic Data Collection, LLC
Data Services – Surface WaterData Services – Surface Water• Daily discharge tables• Rating tables• Rating curve sheets• Summary of discharge
measurements• Unit values hydrograph• Daily discharge
hydrograph• Flow duration curves
Copyright 2010, Hydrologic Data Collection, LLC
Data Services – Water QualityData Services – Water Quality• Real-time data,
condition alarming, and web hosting
• Calibration records• Tabular unit and
daily values for each parameter
Copyright 2010, Hydrologic Data Collection, LLC
Representative ClientsRepresentative Clients
Copyright 2010, Hydrologic Data Collection, LLC
Value of Working with HDCValue of Working with HDC• Unmatched experience• High quality data• Professional service• Timely delivery of data• Customized solutions• A lower cost alternative
Copyright 2010, Hydrologic Data Collection, LLC
Company Locations and Company Locations and Main Contact InformationMain Contact Information
Florida Office
John CoffinPresident and Sr. Hydrologist
USGS - Retired
5706 Ternwater PlaceLithia, FL 33547813-299-1108
Virginia Office
Rob MooneyVice President
805 Vassar RoadAlexandria, VA 22314