OSWER/OSRTI Washington, DC 20460



## N ATIONAL 

## P RIORITIES 

## L IST 

## (NPL)

[The description of the site (release) is based on information available at the time the site was evaluated with the HRS. The description may change as additional information is gathered on the sources and extent of contamination.]

For more information about the hazardous substances identified in this narrative summary, including gen eral information regarding the effects of exposure to these substances on human health, please see the Agency for Toxic Substances and Disease Registry (ATSDR) ToxFAQs. ATSDR ToxFAQs ca n be found on the Internet

at http://www.atsdr.cdc.gov/toxfaq.html or b y telephone at 1

- 888

- 42

- ATSDR or 1

- 888

- 422

- 8737. ***Proposed Site *** March 2011 

### S

AUER DUMP Dundalk , Maryland Baltimore County

 **Site Location :**  The 2.48

- acre site is located in the Dundalk area of Baltimore, Maryland. It is bordered by a cove of the Back River

, tidal
wetlands t o the south, and non

- tidal wetland areas along the northwestern, southwestern and southeastern borders. The Back River is a tributary to the Chesapeake Bay.

 **Site History:** The property is an inactive, privately owned, unpermitted, former dump. The property was originally a marshl and that was filled and stabilized by a past owner. During dump operations from the 1960s through the 1980s, hazardous substances were improperly stored and disposed of on the property . The property owner is Wittstadt Hunting Club, Inc. C urrent operations include vehicle maintenance and duck hunting in the fall. All

- terrain vehicles have been used on the property

, causing erosion and exposing contaminated soils

.

 **Site Contamination/Contaminants:**

The main source on the site is contaminated soils which cover most of the 2.48

- acre property. Wastes observed on the property during site investigations included drums, storage tanks, salvage items such as scrap metal, empty tanks, abandoned trucks, tractor

- t ruck trailers, open roll

- off containers, heavy construction equipment, and junked cars. Charred

areas and burned paint waste have also been observed. Studies conducted at the property indicate that concentrations of semivolatile organic compounds (SVOCs) , metals, polychlorinated biphenyls (PCB s ), and pesticides in the soil and sediment are present at elevated levels.

 **Potential Impacts on Surrounding Community/Environment :**  The property is zoned as a Resource Conservation Critical Area under the state Cr itical Area Act. The Critical Area Act recognizes that the land immediately surrounding the Bays and their tributaries has the greatest potential to affect water quality and wildlife habitat and thus designat es all lands within 1,000 feet of tidal waters or adjacent tidal wetlands as
“Critical Area

. ” The Back River is also heavily used for recreational fishing and is an important habitat for many species of
fish and shellfish in the area.

 **Response Activities (to date):** In 2005, the responsible parties constructed a fence to prevent access to most of the property . T he shoreline has also been stabilized in areas where erosion was significant.

 **Need for NPL Listing:**

The S tate of Maryland referred th e site to EPA because of the need for a comprehensive cleanup

. EPA received a l etter of support for placing this site on the NPL from the s tate

.