Water quality_2 - Groundwater Contamination Residence time...

Info icon This preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Groundwater Contamination Residence time of groundwater usually much longer than for surface waters Often difficult to detect groundwater contamination Difficult to clean-up (remediate) contaminated aquifers Plume -- elongate pattern of contamination from point source Groundwater Contamination on Long Island Toxic metals – primarily from industrial activities Nitrates – wastewater (septic system recharge), fertilizers Pesticides – primarily from agriculture, horticulture Organic chemicals – household wastes, industrial sources Petroleum (gasoline) spills – single-shell underground tanks
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Landfilling started at this site in 1947 Point source contamination into Upper Glacial Aquifer Leachate (chloride shows distribution) Plume – elongated pattern of contaminant dispersal Plume is 3500 m in length Leakage duration 33 years 3500m/33yr = 106 m/yr Rate of contaminant movement Babylon Landfill
Image of page 2
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Heavy metal contamination at electroplating plant in South Farmingdale Between 1940-1960, cadmium and chromium-containing water was discharged into recharge basins
Image of page 4
Recharge basins (point source) Massapequa Creek Plume
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Chromium Cr(VI) Cadmium Cross-sections of Contaminant Plume Source Flow
Image of page 6
Non-point source Brookhaven Nat’l Lab Babylon landfill E. Northport landfill
Image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
E. Northport Landfill (point source) Plume Region expected to become contaminated Private wells N
Image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern