| Main Title |
Alaska placer mining metals study |
| CORP Author |
Environmental Protection Agency, Seattle, WA. Region X. |
| Publisher |
United States Environmental Protection Agency, Region 10, |
| Year Published |
1998 |
| Report Number |
PB98-145998 ; EPA 910-R-98-003 |
| Stock Number |
PB98-145998 |
| OCLC Number |
39488536 |
| Subjects |
Hydraulic mining--Alaska
|
| Additional Subjects |
Alaska ;
Placer mining ;
Environmental effects ;
Water quality ;
Mines ;
Metalliferous mineral deposits ;
Ore deposits ;
Metals ;
Placers ;
Mine wastes ;
Surface waters ;
Water smapling ;
Water chemistry ;
Turbidity ;
Dissolved solids ;
Suspended solids ;
Water temperature ;
Hardness(Water) ;
Electric conductivity ;
pH factor ;
Ecological concentration
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ESAD |
EPA 910-R-98-003 |
3 copies |
Region 10 Library/Seattle,WA |
06/13/2016 |
| NTIS |
PB98-145998 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 v. (various pagings) : ill., maps ; 28 cm. |
| Abstract |
Thirty-one placer mine sites were visited by EPA and State personnel during August 1997 as the first phase of a study of the occurrence of metals in surface water above and below mines, and in effluent. Field measurements were made of temperature, pH, electrical conductivity and settleable solids. One-time grab samples were collected for laboratory analysis of total suspended, sediment, total recoverable metals, dissolved metals and hardness. |
| Notes |
"April 10, 1998." "EPA 910-R-98-003" |
