Governor Chris Christie • Lt.Governor Kim Guadagno
  Search
new jersey department of environmental protection
NJ Home Page Services A to Z NJ FAQs NJ Departments/Agencies departments
site remediation program

SRP Home | DEP Home

SRP Community RelationsSite Information ProgramHudson Chromate ProjectTrivalent and Hexavalent Chromium

 

Trivalent and Hexavalent Chromium

Alternate formats for this document:

Excel 95/97 Version of this document

Soil Cleanup Criteria from 1993 to September 3, 1998

EXPOSURE PATHWAY TRIVALENT CHROMIUM HEXAVALENT CHROMIUM
RESIDENTIAL SCENARIO NONRESIDENTIAL SCENARIO COMMENT RESIDENTIAL SCENARIO NONRESIDENTIAL SCENARIO COMMENT

ALLERGIC CONTACT DERMATITIS 500 PPM 500 PPM 1 10 PPM 10 PPM 1

 

1 - Due to the acute nature of this exposure pathway, the soil cleanup criteria for the residential and nonresidential scenarios are the same.

 

Soil Cleanup Criteria Proposed September 18, 1998

EXPOSURE PATHWAY TRIVALENT CHROMIUM
RESIDENTIAL SCENARIO NONRESIDENTIAL SCENARIO COMMENT

ALLERGIC CONTACT DERMATITIS NONE NONE 1
INHALATION NONE NONE 2
INGESTION 120,000 PPM NOT REGULATED 3
IMPACT TO GROUND WATER NONE NONE 1

 

EXPOSURE PATHWAY HEXAVALENT CHROMIUM
RESIDENTIAL SCENARIO NONRESIDENTIAL SCENARIO COMMENT

ALLERGIC CONTACT DERMATITIS UNDER DEVELOPMENT UNDER DEVELOPMENT

4,5

INHALATION 270 PPM 20 PPM (PRELIMINARY)

4,6

INGESTION 240 PPM 6,100 PPM  
IMPACT TO GROUND WATER SITE SPECIFIC SITE SPECIFIC 5,7

 

1 - Under normal environmental conditions, trivalent chromium is insoluble in water. Therefore, exposure via this pathway is not relevant.
2- Toxicological data for trivalent chromium does not exist for this exposure pathway. Therefore, soil cleanup criteria cannot be established.
3- For the nonresidential scenario, ingestion of trivalent chromium does not pose an unacceptable risk. Therefore, a soil cleanup criterion is not proposed.
4- Exposure models and assumptions have been developed or are being finalized; generic soil cleanup criteria are being developed.
5- Soil cleanup criterion will be the same for both the residential and nonresidential scenarios.
6- Due to the effects of vehicular traffic, the nonresidential scenario soil cleanup criterion will be lower than the residential scenario soil cleanup criterion.
7- Due to highly variable soil conditions throughout the State, it is not possible at this time to develop a generic impact to ground water cleanup criterion.