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U.S. DEPARTMENT OF COMMERCE
National Technical Information Service
PB-256 674
IMPACTS OF CONSTRUCTION ACTIVITIES IN WETLANDS
OF THE UNITED STATES
TERECO CoRPORATION
PREPARED FOR
U.S. ENVIRONMENTAL PROTECTION AGENCY
APRIL 1976
QH
541.5
.M3
037
1976
EPA-600/3· 76-045
April 1976
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TECHNICAL REPORT DATA
(Please read Jnwuctions on the reverse before completing)
1. REPORT NO. EPA-600/3-76~045 ,2.
4. TITLE AND SUBTITLE
Impacts of Construction Activities in Wetlands of
the United States
7. AUTHOR(S)
Rezneat M. Darnell
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Tereco Corporation
Willow Drive
College Station, Texas
12. SPONSORING AGENCY NAME AND ADDRESS U.S. Environmental Protection Agency
Corvallis Environmental Research Laboratory
200 SW 35th Street
Corvalli$, OR 97330
15. SUPPLEMENTARY NOTES
16. ABSTRACT
3. RECIPIENT'S ACCESSIOI'+NO.
5. REPORT DATE
April 1976
6. PERFORMING ORGANIZATION CqDE
8. PERFORMING ORGANIZATION REPORT NO.
10. PROGRAM ELEMENT NO.
1HA095
11. CONT-RACifG-RANTNO.
68-01-2452
13. TYPE OF REPORT AND PERIOD COVERED final
14. SPONSORING AGENCY CODE
EPA/ORO
The primary types of construction activity which severely impact wetland environments
of the United States include: floodplain surfacing and drainage, mining, impoundment
canalization, dredging and channelization, and bank and shoreline constructton. Each
type of construction activity is attended by an identifiable suite of physical and
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chemical alterations of the wetland environment which may extend for many miles from 1 ~C
the site of construction and may persist for many years. In turn, each type of
physical and chemical modification has been shown to induce a derived set of biologi-
cal effects, many of which are predictable, in general, if not in specific detail.
The most environmentally damaging effects of construction activities in wetland
areas, in order of ·importance, are:· direct habitat loss, addition of suspended solid~ ''·
and modification of water levels and flow regimes. Major construction-related impact~ c
a 1 so derive from a 1 tered water temperature, pH, nutrient 1 eve 1 s, oxygen, carbon di.ox-
ide, hydrogen sulfide, and certain pollutants such as heavy metals, radioactive
isotopes, and pesticides.
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17. KEY WORDS AND DOCUMENT ANALYSIS
~ r:------·--DESCRIPTORS b. IDENTIFIERS/OPEN ENDED TEAMS c. COSATI Field/Group
1 EIS • s Wetlands Impacts ?, C ~ ' ' i . '·
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18. DISTRIBUTION STATEII/I.ENT 19. SECURITY CLASS (This Report)
Unclassified I Release unlimited. 20. SECURITY CLASS (This page)
Unclassified
EPA Fcrm 2220·1 (9·73)
It U.S. GOVERNMENT PRINTING OFFICE, 1976-697·175187 REGION 10
l2l.._t,IO. OF r.$GES
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