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Application of Long-Term Water Level
Monitoring to Assess Sustainability
2014 Water & Watershed Conference
PLYMOUTH STATE UNIVERSITY
Plymouth, New Hampshire
Dan Tinkham, John Brooks, and Jeff Marts
Emery & Garrett Groundwater Investigations, LLC
Production Well
Staff
Gage
Wetland
Piezometer
Water Level Monitoring…
Is Easy
Is Relatively Inexpensive
Provides Data that is Easy to Store and
Provide to Users
Provides a Measure of Compliance
Acts as a Proxy for More Expensive
Monitoring Systems
Emery & Garrett Groundwater Investigations, LLC
Manual
Water
Level
Collection
Emery & Garrett Groundwater Investigations, LLC
Automated Water Level Recorders
Emery & Garrett Groundwater Investigations, LLC
Wireless
Technology
Stacked Wells: Aquifers
Emery & Garrett Groundwater Investigations, LLC
Earth Tides
How does the collection of
water levels integrate
science into water
resources decision making?
Sustainable Supplies…
Prevent Groundwater Mining
Protect Infrastructure (both Natural
and Man-made)
Mitigate the Impact of Known
Sources of Groundwater
Contamination
Prevent Adverse Impacts –
Compliance Issues
Emery & Garrett Groundwater Investigations, LLC
• Prevention of
Groundwater
Mining
Long-Term Pre-Pumping Monitoring
Emery & Garrett Groundwater Investigations, LLC
Established
Relationship
Between
Depth to
Water and
Aquifer
Storage
Emery & Garrett Groundwater Investigations, LLC
Long-Term Irrigation Well Pumping
Emery & Garrett Groundwater Investigations, LLC
Long-Term Water Level Declines
Emery & Garrett Groundwater Investigations, LLC
Protect Infrastructure
(both Natural and
Man-made)
Emery & Garrett Groundwater Investigations, LLC
Production Well Efficiency
Ele
vat
ion
Well Corrosion
and Biofouling
• Mitigate the Impact
of Known Sources of
Groundwater
Contamination
Emery & Garrett Groundwater Investigations, LLC
Long-Term Water Quality Degradation
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
Sep
-07
Oct
-07
No
v-0
7
Dec
-07
Ja
n-0
8
Feb
-08
Ma
r-0
8
Ap
r-0
8
Ma
y-0
8
Ju
n-0
8
Ju
l-0
8
Ju
l-0
8
Au
g-0
8
Sep
-08
Oct
-08
No
v-0
8
Dec
-08
Ja
n-0
9
Feb
-09
Ma
r-0
9
Ap
r-0
9
Ma
y-0
9
Ju
n-0
9
Ju
l-0
9
Au
g-0
9
Sep
-09
Oct
-09
No
v-0
9
Date
Est
ima
ted
Ch
lori
de
Co
nce
ntr
ati
on
(m
g/l
)Conductivity Dataloggers
Dec
emb
er 2
007
10’ From Pumping Well
1,100’ From Edge of I-93
Ju
ne
2008
Dec
emb
er 2
008
Ju
ne
2009
Emery & Garrett Groundwater Investigations, LLC
• Prevent Adverse
Impacts –
Compliance Issues
Impacts on Domestic Wells
Evaluating
Wetland
Impacts
Emery & Garrett Groundwater Investigations, LLC
Wetland Piezometers
Emery & Garrett Groundwater Investigations, LLC
Stacked Wells: Wetlands
Emery & Garrett Groundwater Investigations, LLC
Surface Water/Groundwater Interaction
Emery & Garrett Groundwater Investigations, LLC
Pond
Production Well
Temperature Variations
Pond
Production Well
Shallow Piezometer
Deg
rees
Cel
sius
Days Since Start of Pumping
Emery & Garrett Groundwater Investigations, LLC
Evaluating Induced Infiltration
Emery & Garrett Groundwater Investigations, LLC
Long-Term Temperature Variations
Emery & Garrett Groundwater Investigations, LLC
Sometimes you end up in
difficult places…
Rating Curves
Emery & Garrett Groundwater Investigations, LLC
Emery & Garrett Groundwater Investigations, LLC
QUESTIONS?
Dan Tinkham – [email protected]
John Brooks – [email protected]
Jeffrey Marts – [email protected]
mailto:[email protected]:[email protected]:[email protected]