Coastal areas continue to face development issues, including the problem of developing and maintaining a sustainable water supply. At McLane Environmental, we specialize in ground water flow system analyses and computer modeling. We have become one of the leading firms in the nation in the analysis of coastal zone aquifers, and have developed a specialized suite of modeling tools to examine saltwater interface dynamics and density-dependent ground water flow and transport. This suite of tools allows us to effectively and efficiently evaluate coastal zone ground water flow systems.

We have performed studies on several coastal aquifer systems, including Cape Cod, Long Island, and the Potomac-Raritan-Magothy aquifer system in New Jersey. Our range of analyses includes:

• Well field rehabilitation projects, including analysis of potential saltwater intrusion and selection of pumping strategies for a freshwater lens;
• Subsurface wastewater disposal modeling studies such as ground water mounding and surface water impact analyses in coastal settings;
• Well field siting investigations including aquifer test design, modeling of saltwater upconing to determine optimal well placement and potential yield;
• Nitrate loading and transport studies to estimate concentrations and fluxes at sensitive ground water/coastal water boundaries; and
• Ground water remediation modeling to examine the effectiveness and optimal design for ground water pump and treat systems.

We have presented our findings successfully to clients, municipal decision makers, citizens groups, and regulatory oversight agencies, using strong scientific data and state-of-the-art graphics and animations. For all of our projects we strive to minimize costs by efficiently designing the requested analyses, and by carefully selecting from our spectrum of freshwater/saltwater modeling tools to swiftly obtain the answer.

	SeaWater Calc is a fully functional free software download. SeaWater Calc can easily calculate water density by inputting a salinity or chloride concentration and temperature. The calculator can also calculate salinity concentration based on chloride concentration or water density or calculate chloride concentration based on salinity concentration or water density.
	Dial up Program  230 KB
	Poster Presentation at December 2003 National Ground Water Association Conference in Orlando, FL – Effect of Aquifer Anisotropy and Layering on Estimated Yields from Pumping Wells in a Coastal Setting.
	Broadband PDF 3.1 MB
	Animation showing the effect of aquifer anisotropy on the freshwater/salt water interface below a pumping well. The blue line represents the interface location for an aquifer with 1 to 1 anisotropy and the pink line represents the interface location for an aquifer with 100 to 1 anisotropy. Modeling results were produced using the variable density ground water flow model SEAWAT.
	Dial up animation 225 KB