Field Water Chemistry Analysis

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• Field Water Chemistry Analysis
• Equipment Care
• Test Procedures
• Results Interpretation
• Data Reporting

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• Field Chemistry Tests
• pH
• Dissolved Oxygen
• Conductivity
• Temperature
• Some things are just
• best done in person.

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Field Chemistry Equipment
Lamotte Brand Testing Kits Alcohol or mineral
spirit thermometers Conductivity/TDS Meters
(calibrated) pH meters calibrated with 4-7-10
standard solutions
Other field testing equipment is usable
if calibrated and documented. Testing strips
such as pH paper and dip stripsare not
accepted.
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What you need to know
How to count to 10 The ability to differentiate
color How to follow step by step
instructions The ability to fill a bottle
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Measuring pH
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pH testing kit
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14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Basic or Alkaline Range
pH-Good Between 6-9 Standard Units
Acid Range
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Interpreting pH Results
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Measuring Dissolved Oxygen
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Dissolved Oxygen testing kit
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15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Dissolved Oxygen Levels 0-4 mg/l poor 4-7 mg/l
fair 7-10 mg/l good 10-14 mg/l excellent over 14
????? Check your test!
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Interpreting Dissolved Oxygen Results
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Dissolved Oxygen
Temperature
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Measuring Conductivity
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Conductivity Meter (and you get a thermometer)
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1500 1400 1300 1200 1100 1000 900 800 700 600 500
400 300 200 100 0
Conductivity
The higher the number, the poorer the quality.
Oil and Gas Well Discharge
Waste water impact
Normal Stream
Rain
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Conductivity
Flow
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• Field Observations
• Flow
• 0-5 point scale
• 24 hour rainfall
• In inches
• Turbidity
• 0-3 point scale
• Some things are just
• best done in person.

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0Dry

• Flow Observations
• Flow
• 0 Dry
• 1 Ponded
• 2 low
• 3 Normal
• 4 Bank Full
• 5 FLOOD!
• Get to know your creek

4Bank Full
5Flood!
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Record Discharge in Cubic Feet Per Second
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Estimate rainfall in your watershed in quarter
inches for the last 24 hours Use Weather
Channel, local paper or Toad Gauge
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Turbidity 0-3 point scale
Value Observation NTUs 0 Crystal Clear 0
NTUs 1 Clear 1-3 NTUs 2 Cloudy 4-12 NTUs
3 Muddy gt12 NTUs
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• Other
• observations
• to make
• Putrescent or otherwise objectionable bottom
  deposits
• Oil, scum, and floating debris in amounts that
  are unsightly
• Nuisance levels of odor, color, other conditions

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Field Chemistry Check List
DO kit pH kit Thermometer Spent chemical waste
container Conductivity meter and
screwdriver Blue Book of instructions Recording
forms pencil First Aid Kit
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Equipment Use
Equipment is Loaned to you for the duration of
the project. Please return field kits to your
area coordinator or sampling event coordinator
if you retire from the project.
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Equipment Use
Kits have enough chemical for 50 tests! (use
them all you want!) Store in a cool, dry
place. NOT a hot car or freezing
garage! Chemicals should be replaced every two
years. Should you need replacement chemicals or
glassware before then, let us know.
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Equipment Use
There are hazardous chemicals in these kits! DO
Test uses a strong alkali (like bleach) pH test
chemical is flammable Read Material Safety Data
Sheets for handling and Disposal
Instructions Use plastic spent chemical waste
container at stream Dispose of properly at home.
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Equipment Use

• We request that you Run D.O., Temp pH
• test every field visit or sampling event.
• Feel free to use them more frequently
• For monthly or bi-weekly testing
• For testing other resources
• For educational demonstrations

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Test at the creek! Conduct Field Tests in actual
conditions