Study-Unit Design Summary Table
for the ALMN NAWQA Project

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TIPS ON USING THE TABLE:  

  1. For a summary of each study-component design click on the information symbol ([information symbol]) in the ALMN Study Components column.
  2. For lists of the sites/study and to access site data and/or a study location map click on the "To study data" link in the ALMN Study Components column.
  3. For constituent lists of the data collected for each Study Component click on the parameter(s) of interest (ex. "Major ions") in the What data were collected column.
  4. Data repeated in the What data were collected column without an active link are identical to where the data was previously listed for surface or ground water, respectively.
SUMMARY OF DATA COLLECTION IN THE ALMN RIVER BASIN STUDY UNIT, 1996-98
ALMN Study
Components
(Number of sites/wells)
What data
were collected
Reason(s)
for sampling
Types of
sites sampled
Sampling
frequency/period
SURFACE-WATER QUALITY
[information symbol]

BASIC
FIXED SITES (8)


Integrator Sites (5)

Indicator Sites (3)

To study data
 -  Contin. streamflow
 - Discharge
 -  Field constituents
 - Major ions
 - Nutrients
 -  Organic carbon
 -  Suspended sediment
 -  Trace elements (dis.)
 -  Trace elements (sus.)
 -  Ecological assessment
To describe concentration, seasonal variability and loads, and to assess biological communities in different land uses. Streams draining a variety land use types across basin, including:
 - Coal mined
 - Forested
 - Residential /
    urban
 - Agricultural
 - Mixed
Stream Chemistry:
Monthly plus high flows;
April* 1996-Sept. 1998
(*2 sites started in Oct. 1996)
Trace elements (dis.)
(1 per site, Sept. 1998)
Trace elements (sus.)
low, med., high flows (1997-98) 4 sites¹
Stream Ecology:
1996-97 (10 sites),
1998 (6 sites)
(Sampled once each time period.)
[information symbol]

INTENSIVE
FIXED SITES (2)


Indicator Sites (2)

To study data
 - Same constituents
   as above
 - 83  Pesticides (dis.)
 - 87 Volatile organic
   compounds (VOC's)
   (only 1 site)
To determine concentration and timing of occurrence and to assess biological communities in targeted land uses. Stream reaches were co-located with basic sites. Sites represent two types of predominant land-uses within the basin:
 - Agricultural
 - Residential /
    urban
Stream Chemistry:
Monthly plus high flows
and storm flows and more often during high-use period, 1996-98.

Stream Ecology:
One 3-reach site in 1996
One 3-reach site in 1997
[information symbol]

BED-SEDIMENT AND TISSUE STUDY (19)

 Trace elements and
 organic contaminants
 in bed sediments (19)
 and fish tissue (16)
 
  
To study data
Bed-sediment:
 - Trace elements
 - Carbon, total
 - Chlorinated, hydro-
    phobic pesticides
 - Semivolatile organic
    compounds (SVOC's)
Fish Tissue:
 - Trace metals in
    fish livers
 - Organic compounds
    in composites of
    whole fish
To determine occurrence and spatial distribution. For all Basic and Intensive Fixed Sites and 9 additional sites:
Bed-sediment:
Depositional zones
Fish Tissue:
Samples were taken from fish species common to/across Study Unit
Bed-sediment:
Summer 1996
September 1998 (Trace elements only)
Fish Tissue:
Summer 1996
Summer 1997 (Duplicate taxa at 2 sites)
GROUND-WATER QUALITY
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STUDY UNIT SURVEY (30)
 Fractured Bedrock
 Survey (30)


To study data
 -  Ground-water levels
 - Field constituents
 - Major ions /
    Trace metals

 - Nutrients
 -  Pesticides
 - VOC's
 - Radon
 - Trace elements
 - Dissolved organic
    carbon (DOC)
To assess ground-water quality across the region. Existing domestic wells located using a statistically random selection process. Once in 1996
(July-August)
[information symbol]

STUDY UNIT SURVEY (30)
 Glaciofluvial Sediment
 Survey (30)


To study data
 - Same as above,
    except no
    trace elements
To assess ground-water quality across the region. Existing domestic wells located using a statistically random selection process. Once in 1996
(September-October)
[information symbol]

LAND-USE EFFECTS
SURVEY (35)

 Coal Mining
 Land-Use Study (35)


To study data
 - Same as above,
    except no pesticides
 - Trace elements
 - Chlorofluorocarbons
    (CFC's)
To assess quality of recently recharged ground water. Existing domestic wells located down gradient of recently reclaimed suface coal mines (2-12 years old). Once in 1997
(August-October)
SPECIAL STUDIES
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LOW-FLOW SYNOPTIC
SURVEY OF STREAMS
IN THE COAL FIELDS
OF THE ALMN BASIN (121)


 Standard Site Network (89)
 (Surface-water chemistry only)

 Intensive Site Network (32)
 (Surface-water chemistry
   and ecology)


To study data
Standard Site Network:
 - Discharge
 - Mine drainage
    indicators

 - Field constituents
 - Embeddedness
    Survey


Intensive Site Network
 - Same as Standard
    Sites
 - Major ions
 - Sulfate
 - Trace elements
 - Macroinvertebrates
 - Aquatic habitat
Standard and Intensive Site Networks:
To assess quality of surface water relative to type and age of coal mining in the basins.

Intensive Site Network
To assess spatial distribution of biological communities when subjected to mine drainage.
Standard and Intensive Site Networks:
Synoptic sites selected randomly from original 298 sites of the 1979-81 Coal Hydrology Study.
Standard Site Network:
Once in summer 1998
(August 14-28)

Intensive Site Network
 Stream Chemistry:
Once in summer 1998
(August 14-28)

 Stream Ecology:
Once in summer 1998
(Aug. - Sept. 1998)
[information symbol]

MERCURY SYNOPTIC (5)

 As part of the National 
 Pilot Study of Mercury
 Contamination of Aquatic
 Ecosystems along Multiple
 Gradients


To study data
 - Discharge
 - Mercury compounds
 - Sulfate
 - Total Organic Carbon
    (TOC)
 - Field constituents
 - Mercury compounds
    in Bed-sediment
 - Mercury compounds
    in Fish Tissue
To assess the quality of surface water relative to mercury. Synoptic sites selected from above listed Study Components, including; Basic Fixed Sites, Bed-Sediment and Tissue Study, and two additional sites Once in summer 1998
¹ Four (4) sites include: two (2) mine indicator sites, one (1) integrator site and Laurel Hill Creek at Ursina.

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