| Main Title |
Stream Chemistry in the Southern Blue Ridge: Feasibility of a Regional Synoptic Sampling Approach. |
| Author |
Messer, J. J. ;
Ariss, C. W. ;
Baker, J. R. ;
Drouse, S. K. ;
Eshleman, K. N. ;
|
| CORP Author |
Utah State Univ., Logan. ;Oregon State Univ., Corvallis. Dept. of Statistics. ;Northrop Services, Inc., Corvallis, OR. ;EG and G Idaho, Inc., Idaho Falls.;Corvallis Environmental Research Lab., OR. |
| Publisher |
c1988 |
| Year Published |
1988 |
| Report Number |
EPA-R-812049; EPA/600/J-88/417; |
| Stock Number |
PB90-108309 |
| Additional Subjects |
Stream pollution ;
Ground water ;
Water chemistry ;
Neutralizing ;
pH ;
Seasonal variations ;
Sampling ;
Sulfates ;
Graphs(Charts) ;
Reprints ;
Acid deposition ;
Nitrates ;
National Stream Surveys
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-108309 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
11p |
| Abstract |
A pilot study, which was conducted in the Southern Blue Ridge geographical province of the Southeastern U.S., demonstrated the feasibility of a probability-based regional synoptic design for the National Stream Survey, which is a project aimed at estimating the number and percentage of streams in various regions of the U.S. that are acidic or at risk from acid deposition. Estimated population distributions for key chemical variables were not appreciably affected by week-to-week variability in stream chemistry during the spring index period chosen for the study. Differences were observed in estimated acid neutralizing capacity (ANC), nitrate, and pH frequency distributions between spring and summer. Observations made at the downstream node did not represent the chemistry of the entire reach for some variables (ANC and nitrate). Coefficients of variation in chemical species were low enough to provide a reasonably stable classification of streams based on ANC. Although median ANC, sulfate, and nitrate concentrations were quite low in the region, the probability of finding streams with pH <6.3 is less than 1.3% at the alpha=0.05 confidence level. |
| Supplementary Notes |
Pub. in Water Resources Bulletin, v24 n4 p821-829 Aug 88. Prepared in cooperation with Oregon State Univ., Corvallis. Dept. of Statistics, Northrop Services, Inc., Corvallis, OR., and EG and G Idaho, Inc., Idaho Falls. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Stream Chemistry in the Southern Blue Ridge: Feasibility of a Regional Synoptic Sampling Approach. |
| Category Codes |
48G; 68D |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
932620978 |
| Origin |
NTIS |
| Type |
CAT |
