L-31N Seepage M anagement Field Test Seepage Management...L-31N Seepage Management Field Test July 2011 9 Groundwater stage data were collected periodically in the 6 shallow upgradient

Miami-Dade Limestone Products Association 13292 N.W. 118th Avenue Miami, FL 33178

L-31N Seepage Management Field Test

The Performance of a Partially Penetrating Seepage Barrier along the L-31N Canal

July 2011

Prepared on behalf of the Miami-Dade Limestone Products Association

by

MacVicar, Federico & Lamb, Inc. West Palm Beach, Florida


July 2011 2

Lake Belt Seepage Management Demonstration Project

Background Recent investigations by the U.S. Geological Survey and the South Florida Water Management District have documented distinct layering within the Biscayne Aquifer and identified preferential flow zones within specific layers in the area of the L-31N Canal, which defines the northern portion of the eastern boundary of Everglades National Park (ENP). One of the high flow layers is the Miami limestone, which makes up the top 5 to 10 feet of the aquifer in the vicinity of the canal. It is this top layer of porous rock that appears to serve as a conduit allowing water from the wetlands within ENP to flow into the L-31N Canal.

The proposed field test of a partially penetrating seepage barrier was described in an earlier report produced in February 2009. The proposal was presented to the Lake Belt Mitigation Committee, as well as technical staff at Everglades National Park and the South Florida Water Management District. The SFWMD issued a right of way permit for the construction of the test project, including monitoring wells, on the berm between the L-31N Levee and Canal at a location one mile south of Tamiami Trail.

The goal of the test was to document the performance a of partially penetrating flow barrier in reducing groundwater interception by the canal. The test consisted of constructing a cement-bentonite flow barrier in a narrow trench extending through the Miami limestone layer of the aquifer just west of the L-31N Canal. The test barrier was located with its midpoint adjacent to the northern cluster of monitoring wells installed as part of the L-31N Seepage Management Pilot Project. (Figure 1)

Site Layout Figure 2 shows the geologic cross section at the monitoring well cluster from USGS Scientific Investigations Report 2005-5235 (Cunningham, et al). The Biscayne Aquifer in this area is generally considered to consist of the Miami oolite in the upper section and the Ft. Thompson formation below. Below the Ft. Thompson is the lower permeability Tamiami Formation, which is not considered to be part of the Biscayne Aquifer. At this location, the Miami oolite, shown as the uppermost light blue layer in Figure 2, is 6 to 8 feet thick and is classified as a conduit flow zone with very high permeability. The salmon colored layer below the Miami oolite is classified as a leaky, low permeability layer in the USGS report. A two foot thick layer of fine sediment has accumulated on the bottom of the canal impeding hydraulic interaction between the canal and the aquifer directly below the canal.

It is likely that the Miami oolite layer is a significant source of groundwater flow from ENP to the L-31N Canal. This test was designed to help determine the extent to which a seepage barrier through the top layer of the aquifer would reduce the unwanted diversion of water from ENP to the adjacent canal. A one thousand linear feet long cement-bentonite seepage barrier, 28 inches wide and 18 feet deep, was constructed in the canal right-of- way between the L-31N Canal and Levee.


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Figure 1. Project location.


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Monitoring Well Instrumentation The wells shown in Figure 3 were equipped with instruments to allow the continuous recording of water level, flow direction, flow velocity and water temperature. It was expected that by constructing the barrier with the midpoint adjacent to the monitoring wells, the impact of the barrier on groundwater flow would be detected. Changes in both the velocity and direction on flow in the shallow groundwater well were predicted to occur. However, the data produced by the instrumentation to detect velocity and direction proved difficult to interpret in the heterogeneous, complex flow paths through the rock in that location. The most informative data seemed to be the simple water level readings collected in each well, with the flow direction in the wells near the end of the test wall also proving useful.

Figure 3. Location of seepage barrier within the L-31N Canal right-of-way and sketch of monitoring well placement.

Figure 2. Schematic diagram of test area cross-section. Well core and layer coloring are taken from USGS Scientific Investigations Report 2005-5235 (Cunningham, et al, 2006). The Miami oolite (top blue layer) is categorized as a conduit flow zone in that report.


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Monitoring Results For the purpose of providing an initial look at the impacts of installing the barrier, the data set was divided into pre-and post-construction periods of 30 days each. With the high transmissivity of the aquifer, any changes to the groundwater flow as a result of the test barrier were expected to be subtle, and difficult to detect. The plot of the stage data in Figure 4 shows a greater stage difference between the canal and the recording wells on the west side of the barrier after the slurry wall was constructed. However it is impossible to tell whether the difference is caused by the barrier or simply by changing conditions in the area.

The L-31N Canal is actively managed during the wet season to keep the stage within a narrow range, while the wet season rainfall tends to increase the stage in the Park. Both of these conditions are noticeable from the data collected after the wall was installed.

Figure 4. Water level data from monitoring wells, L-31N Canal and adjacent wetland in ENP. To try to isolate the effect of the test barrier, plots were developed of the stage difference between the wells just west of the barrier and the canal for 30-day periods just prior to and after the construction of the barrier. Figure 5 is the plot of the stage difference between the shallow groundwater well about 25 feet west of the barrier and the canal stage about 30 feet to the east. The plot shows an increase in the stage difference after construction and also a decrease in the r-squared value of the relationship between the groundwater and the canal. Both of these would indicate that the wall had the desired effect of separating the canal from the shallow groundwater. However, a similar plot, Figure 6, for a station about a mile to the south exhibits similar characteristics, and this location could not be affected by the test barrier. With the extremely high transmissivity

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Stag

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Water Level Data Before and After Barrier Installation

Center Well D Center Well C Well 425

Well 475 L-31N Stage ENP Stage

Barrier Installed


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of the aquifer in this location, a significant impact on the stage either in the surface water or the shallow groundwater was not expected. The changes seen in these data from before and after the construction are more likely a response to the changing conditions than to the impact of the barrier itself. That is not to say that the barrier would not be effective at reducing groundwater flow to the canal, only that the stage data alone do not provide definitive evidence of the success or failure of the concept.

Figure 5. Well D is the shallow groundwater stage just west of the midpoint of the slurry wall. The L-31N Canal is just east of the wall. The difference in the relationship between the two data groups is a function of the changing hydrologic conditions as well as the construction of the wall.

R² = 0.5827

R² = 0.3303

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e (N

ESS2

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L-31N Canal Stage

Pre and Post Slurry Wall Construction: NESS20-29 Site

prior to construction after construction

Figure 6. Site NESS20-29 is a groundwater stage about 500 feet west of the L-31N Canal and about a mile south of the test wall. The presence of the test wall has no effect on this site.


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In addition to the ground and surface water stage data, information on groundwater flow velocity and direction was also collected. The flow velocity and direction data is difficult to interpret and no definitive conclusions regarding the performance of the barrier could be derived from the data set.

Figure 7. Data collected from the velocity sensor before and after wall construction.

Barrier installed


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Additional Testing

Due to the uncertainties in determining the effectiveness of the seepage barrier, the following additional testing/evaluations were performed during 2010 and 2011:

• Groundwater stage analysis

• Groundwater temperature changes

• Groundwater tracer test

• Canal flow measurement analysis

• Barrier physical integrity testing

Groundwater stage measurements In preparation for the tracer test, a total of 40 shallow and deep monitoring wells were installed in the vicinity of the seepage barrier and at a control site (without the seepage barrier) approximately 500 feet to the south (Figure 8). The well locations and depths (with the exception of four shallow wells at the ends of the barrier) were identical.

Figure 8. Tracer test monitoring locations.

The top of the low permeability freshwater limestone layer (Q4 marker bed) between the Miami oolite and the Ft. Thompson formation was identified at a depth of approximately 14 feet below land surface at the site. The shallow monitoring wells were installed both east and west of the barrier and completed in the Miami oolite above the Q4 layer (with a total depth of 11 feet and well screen between 7 and 11 feet). The deep monitoring wells were installed only west of the barrier and completed in the Ft. Thompson formation below the Q4 layer (with a total depth of 40 feet and well screen between 20 and 40 feet).


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Groundwater stage data were collected periodically in the 6 shallow upgradient tracer test dye introduction wells and the associated downgradient shallow and deep monitoring wells (Appendix 1). In addition, stage data in the USGS monitoring well (G-3576) located one mile west of the barrier and in the L-31N Canal (AVM-1) were obtained from the USGS website. At the southern monitoring site (with no barrier), the flow at the project site was from the west (from ENP to the L-31N Canal) during the west season and from both the west (ENP) and east (canal) during the dry season (Figure 9).

Figure 9. Average water levels at the southern control site without the barrier.

The groundwater stage in the vicinity of the barrier also varied seasonally (Figure 10). The top graph shows that the average groundwater stages in the deep and shallow monitoring wells at the control site were essentially identical, suggesting minimal flow between the Miami oolite and the Ft. Thompson formation. However during the wet season, the deep water levels at the barrier site are higher, suggesting some upward flow due to the installation of the barrier. Similarly, the bottom graph shows that the average water level in the shallow west and east wells at the control site are similar (with a slight positive gradient towards the canal during the wet season). The wells are approximately 20 feet apart and the slight gradient reflects the overall westerly flow from ENP to the L-31N Canal. During the wet season, the water levels in the west wells at the barrier site are noticeably higher than the east wells, suggesting that the barrier is interrupting the shallow flow resulting in higher upgradient water levels.


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Figure 10. Comparison of water level differences in the tracer test monitoring wells.

Prior to these measurements, it was unclear whether the 1000-foot barrier would influence groundwater stages because of the high permeability of the Biscayne aquifer and groundwater flow around the barrier. However, the seasonal changes observed indicate that the barrier does affect both lateral and vertical groundwater flow.

Groundwater temperature measurements Temperature data were collected periodically in the 6 shallow upgradient tracer test dye introduction wells and the associated downgradient shallow monitoring wells, as well as in the marsh and L-31N canal immediately west and east of the middle of the barrier wall (Appendix 1). As would be expected, the temperatures in the marsh and canal varied seasonally, while the temperature changes in the shallow monitoring wells were less significant (Figure 11). During the wet season, the average temperatures in the wells near the barrier wall were lower than the temperatures at the control site suggesting that the groundwater adjacent to the barrier was perhaps more stagnant (with the lower temperatures reflecting temperatures from the cooler dry season).


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Figure 11. Seasonal changes in average temperatures.

This is also suggested from the changes in temperature between the monitoring events (for example between August and October 2010 - Figure 12). The temperatures decreased in the marsh and canal during this period. The temperatures at the control site monitoring wells show similar (but smaller) decreases. However, the monitoring wells adjacent to the barrier did not show a temperature change.

Figure 12. Temperature changes between monitoring events.


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Tracer Test The tracer test was designed by Tom Aley of the Ozark Underground Laboratory (OUL) in Missouri, which has extensive experience in conducting tracer tests in karst environments. All of the laboratory dye analyses were also performed by OUL. Mr. Aley’s analysis of the preliminary results and all of the test results are included in Appendix 2.

As shown in Figure 8, a total of 40 shallow and deep monitoring wells were installed in the vicinity of the seepage barrier and at a control site (without the seepage barrier) approximately 500 feet to the south. Six of the shallow upgradient wells were used to introduce the dye into the Miami oolite above the Q4 layer. In addition, a total of 40 canal monitoring stations with the sampler suspended at approximately the same depth as the shallow monitoring wells were established at both sites. The canal stations were installed in groups of four (50 feet upstream of the dye introduction well and 0, 50, and 100 feet downstream). The relative locations and depths of the wells and canal stations relative to the barrier wall and the site geology are shown in Figure 12.

Figure 12. Geologic cross-section showing monitoring locations.

The dye concentrations were analyzed using activated carbon samplers, which provide an integrated concentration for the period during which they are suspended in water. The activated carbon continually adsorbs and accumulates the dye, which is eluted and quantified in OUL’s lab after collection. Two sets of carbon packs were placed in the wells and canal prior to dye introduction on October 13, 2010 to check for potential dye interferences (there were none). Carbon packs were collected from the wells and canal on day 1, 2, 4, 7, 14, 21, 28, 35, 49, 63, and 77 after introduction of the tracer. Three dye introductions were performed at both the control and barrier sites, with Rhodamine WT


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in the north and south wells and Fluorescein in the center wells. The different dyes were utilized to be able to potentially identify flow paths.

Results

1. Dye was detected in both the canal and shallow downgradient well samples at both the barrier and control sites in the first set of samples collected approximately 24 hours after dye introduction. The dye could initially be identified as entering the canal at several discrete locations, but over time due to canal flow and wind, the dye spread over a much larger area. Figure 13 shows the Fluorescein distribution two days after dye introduction at the center location at the barrier and control sites.

Figure 13. Fluorescein detections after two days – barrier (left) and control (right) sites.

2. Four months after dye introduction, water samples were obtained from the dye introduction wells. Dye could still be visually identified at the introduction wells at the barrier site, while no dye was visible at the control site (Figure 14). These results suggested that the groundwater flow was influenced in the vicinity of the barrier.

Figure 14. Dye introduction wells at completion of tracer test (four months after introduction).

3. The influence of the barrier was also suggested by the cumulative dye concentrations in the shallow downgradient monitoring wells (Figure 15). The wells at the barrier site had higher cumulative concentrations than the wells at the control site, suggesting more stagnant flow conditions in the vicinity of the barrier. The low concentrations in the northern well at the control site can be explained by the observation that the


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dye, rather than moving directly east to the canal, moved to the southeast and missed both the shallow monitoring well and canal station east of the introduction well.

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Figure 15. Cumulative tracer concentrations measured in downgradient shallow wells.

4. The cumulative canal results were more variable than those for the wells. The cumulative concentrations for each dye introduction location were calculated by adding the concentrations in the 4 canal stations associated with the dye introduction, minus four times the concentration of the dye detected at the nearest upstream canal station. The dye moved downstream in the canal during the testing period and the purpose of subtracting the concentration at the upstream station was to eliminate any dye that originated from an upstream dye introduction. There was not a consistent relationship between the cumulative concentrations at the barrier and control sites (Figure 16). Higher concentrations were detected in the southern canal station group at the control site (relative to the barrier site), which is what would be expected as a result of greater groundwater flow at the control site. The same relationship might have been detected at the northern canal station group, but at the control site it was observed that the dye was entering the canal south of the canal station directly east of the introduction well and therefore the overall control “group” concentration was lower. However, the center canal station group showed the opposite relationship with a higher cumulative concentration at the barrier site. This result raised the question of whether there was potentially a wall construction issue (perhaps due to a bad seam) in the center of the barrier.


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Figure 16. Cumulative tracer concentrations measured in canal samples.

5. With one exception (the northern well at the control site), dye was not detected in the deep downgradient wells at either the barrier or control sites during the wet season. This confirms the water level data which suggested slight upward flow at the barrier site during the wet season. Once the deep and shallow water levels became similar during the dry season, dye was detected in all of the deep downgradient wells.

6. A series of shallow monitoring wells were constructed upgradient of the barrier wall to potentially be able to identify flow around the barrier. Dye was detected in only one upgradient well (N7), which is located 50 feet north of the southern dye introduction well at the barrier site. Dye was first detected at low levels on Day 28, with much higher concentrations in all of five samples through Day 119. The potential flow to the north is considered anomalous, because it was anticipated that flow would be to the south in response to the regional southeasterly gradient. The shallow upgradient wells were constructed only 5 feet to the west of the barrier wall (because of the location of the levee) and it is thought that perhaps there were not additional upgradient detections because of low flow conditions immediately behind the barrier.

Canal Flow Measurements The USGS monitors a group of acoustic velocity meters (AVM) in the L-31N Canal. These meters are located at distances 1, 3, 4, 5, and 7 miles south of Tamiami Trail. At AVM-1 and AVM-4, monitoring wells were installed immediately and one mile west of the L-31N Levee in order to define the water level gradient from the marsh to the canal. AVM-1 and the associated monitoring wells are located in the middle of the barrier wall.


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The daily seepage flows into the L-31N Canal between Tamiami Trail and AVM-3 (which includes the barrier) and between AVM-3 and AVM-5 (2-4 miles south [downstream] of the barrier) were calculated using data before and after construction of the barrier in August 2009. The seepage flows were plotted vs. the stage differences between the marsh and canal at AVM-1 and AVM-4, respectively (Figures 17 and 18). The data suggest lower seepage rates in the northern section of the canal (which includes the barrier) after the barrier was constructed. By comparison, the seepage flows in the southern section of the canal are similar for the same time periods before and after construction of the barrier. These data suggest that the barrier may be influencing the seepage rate into the northern section of the L-31N Canal.

L-31N Canal

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Stage Difference vs. Seepage Flow, Pre and Post-Wall

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Before 8/15/2009

After 8/30/2009

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AVM3-Upstream Flow vs. G3574-AVM1 Water level

Before 8/15/2009

After 8/30/2009

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Figure 17. Pre and post-barrier stage difference vs. seepage flow at AVM-1.

L-31N Canal

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Stage Difference vs. Seepage Flow, Pre and Post-Wall at AVM-4

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Figure 18. Pre and post-barrier stage difference vs. seepage flow at AVM-4.

AVM -1

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Barrier integrity testing As a result of the tracer test results (rapid detection of dye in the L-31N Canal and the variability in the cumulative dye concentrations at the different canal station groups), it was decided to investigate the integrity of the barrier wall. The initial investigation was performed using a cone penetrometer (CPT) at 13 different locations along the barrier. The cone penetrometer uses a steel probe, which includes sensors to measure tip resistance, sleeve friction, and pore pressure with depth as the probe was pushed into the barrier. These measurements were used to estimate the soil type. The Ardaman & Associates report, which includes the profiles for the 13 locations, is included in Appendix 3.

The tip resistance was low and uniform (suggesting a clay material) to an average depth of approximately 13.4 feet for the 13 locations. The sleeve friction and pore pressure measurements were also uniform to a similar depth. At deeper depths, the tip resistance increased until the operator stopped advancing the probe at a tip resistance of approximately 100 tons/square foot. This “refusal” depth was reached at an average depth of approximately 16.7 feet for the 13 locations. The deeper high tip resistance measurements suggest “sandier” material. Figure 19 shows representative cone penetrometer depth profiles for CPT-3 (350 feet from the south end of the barrier), CPT-13 (150 feet from the north end) and CPT-12B (250 feet from the north end).

The cone penetrometer measurements suggested uniform clay material to depths ranging from approximately 10 feet in CPT-13 to 17 feet in CPT-12B and refusal depths ranging from approximately 12.5 feet in CPT-13 to 18 feet in CPT-3. The barrier wall was proposed to a depth of 18 feet, so it would be deeper than the low permeability hard layer at approximately 14-16 feet. Measurements taken during barrier construction indicated that the trencher cut the trench to a depth of greater than 18 feet and that the excavator removed the cuttings in the trench to a depth of at least 18 feet during emplacement of the cement-bentonite slurry. The CPT results suggest that the cement-bentonite barrier does not extend down to the design depth of 18 feet.

As a result of the cone penetrometer tests, borings were drilled through the barrier wall at the locations of CPT-3 and CPT-13 (Figure 20). In both borings, the barrier showed consistent cement-bentonite slurry properties to depths of approximately 8 feet, with good to poor properties between approximately 8 and 14.5 feet, and a non-functional seepage barrier at depths below 14.5 feet. Several of the CPT holes remained open to the depth where the tip resistance began to increase (and presumably collapsed at deeper depths). Water levels were measured in the CPT holes and the depth-to-water was found to be at the same depth as the surrounding aquifer. These measurements suggest that the bottom of the barrier is acting as a porous connection to the aquifer. The depth measurement summary for each CPT location and the borings descriptions are included in Appendix 3.


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Figure 19. Cone penetrometer measurements within the barrier.


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Figure 20. Borings within the barrier adjacent to the CPT locations.


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Conclusions The primary objective of the seepage barrier test was to document the potential effectiveness of a partially penetrating barrier along the eastern boundary of Everglades National Park.

The barrier was shown to be effective in affecting groundwater flow based on the following:

• Water level differences upgradient and downgradient of the barrier • Presence of dye remaining upgradient of the barrier at the end of the test • Changes in stage vs. AVM flow data before and after construction of the barrier • Tracer test cumulative mass balance differences in the canal and well samples at

the barrier site vs. the control site. • Changes in temperature at the barrier site vs. the control site

The following tracer test and barrier integrity results indicate that the cement-bentonite barrier does not extend to the design depth of 18 feet. At the two borings locations, the barrier was shown to not have been reliably installed at depths below 14 feet.

• Early dye detections in the canal during the tracer test • Non-uniform cone penetrometer measurements at depth • Borings within the barrier.

Appendix 1

Groundwater stage and temperature measurements

Station number Name

Survey elevation 8/31/2010 10/5/2010 10/12/2010 11/10/2010 12/29/2010 2/9/2011

NORTH

N11 North end 9.27 3.06 3.07 3.21 3.23 3.57 3.98NIN1 Injection well - 250' 8.30 2.06 2.08 2.19 2.28 2.56 2.99NIN2 Injection well - 500' 8.79 2.54 2.56 2.68 2.76 3.04 3.49NIN3 Injection well - 750' 9.67 3.41 3.38 3.53 3.61 3.94 4.38N40 Shallow downgradient -250' 7.73 1.59 1.61 1.71 1.76 2.03 2.43

N14/15 Deep downgradient -250' 7.72 1.49 1.51 1.66 1.71 2.02 2.44N41 Shallow downgradient -500' 7.68 1.49 1.51 1.63 1.67 1.96 2.35


N18/19 Deep downgradient -750' 7.72 1.51 1.50 1.66 1.72 2.04 2.44N13 South end 8.64 2.47 2.49 2.61 2.67 3.00 3.41

SOUTH

SIN1 Injection well - 250' 9.50 3.30 3.32 3.46 3.53 3.87 4.34SIN2 Injection well - 500' 8.75 2.55 2.56 2.71 2.79 3.12 3.57SIN3 Injection well - 750' 9.25 3.03 3.01 3.16 3.28 3.59 4.04S40 Shallow downgradient -250' 7.95 1.78 1.81 1.93 2.02 2.33 2.77

S14/15 Deep downgradient -250' 8.07 1.90 1.91 2.04 2.13 2.44 2.91S41 Shallow downgradient -500' 7.77 1.59 1.59 1.73 1.81 2.10 2.55


S18/19 Deep downgradient -750' 7.96 1.77 1.75 1.90 1.98 2.32 2.75

St ti S

L-31N Water Level Data

Depth to Water

Water level (NGVD29)Station number Name

Survey elevation 8/31/2010 10/5/2010 10/12/2010 11/10/2010 12/29/2010 2/9/2011

NORTH

N11 North end 9.27 6.21 6.20 6.06 6.04 5.70 5.29NIN1 Injection well - 250' 8.30 6.24 6.22 6.11 6.02 5.74 5.31NIN2 Injection well - 500' 8.79 6.25 6.23 6.11 6.03 5.75 5.30NIN3 Injection well - 750' 9.67 6.26 6.29 6.14 6.06 5.73 5.29N40 Shallow downgradient -250' 7.73 6.14 6.12 6.02 5.97 5.70 5.30



N18/19 Deep downgradient -750' 7.72 6.21 6.22 6.06 6.00 5.68 5.28N13 South end 8.64 6.17 6.15 6.03 5.97 5.64 5.23

SOUTH

SIN1 Injection well - 250' 9.50 6.20 6.18 6.04 5.97 5.63 5.16SIN2 Injection well - 500' 8.75 6.20 6.19 6.04 5.96 5.63 5.18SIN3 Injection well - 750' 9.25 6.22 6.24 6.09 5.97 5.66 5.21S40 Shallow downgradient -250' 7.95 6.17 6.14 6.02 5.93 5.62 5.18



S18/19 Deep downgradient -750' 7.96 6.19 6.21 6.06 5.98 5.64 5.21

G-3576 7.21 7.11 6.95 6.92 6.40 5.98G-3574 6.48 6.47 6.30 6.24 5.85 5.50

L-31N canal USGS AVM-1 website 5.93 5.95 5.84 5.82 5.71 5.35

Station number Name 7/30/2010 8/31/2010 10/5/2010 2/9/2011NORTH (barrier)

N11 North end 27.1 28.1 28.6 23.6NIN1 Injection well - 250' 27.2 28.4 28.6 23.3NIN2 Injection well - 500' 27.3 28.7 28.9 23.6NIN3 Injection well - 750' 28.4 29.1 28.7 23.2N40 Shallow downgradient -250' 27.7 28.5 28.5 23.0N41 Shallow downgradient -500' 26.9 27.8 28.2 23.6N42 Shallow downgradient -750' 26.0 27.8 28.3 24.1N13 South end 29.7 30.2 29.7 23.2

SOUTH (no wall)

SIN1 Injection well - 250' 30.2 30.3 28.6 21.6SIN2 Injection well - 500' 30.8 30.1 28.3 24.1SIN3 Injection well - 750' 30.2 30.4 28.7 22.4S40 Shallow downgradient -250' 28.5 29.7 29.0 23.0S41 Shallow downgradient -500' 29.8 30.2 29.1 24.2S42 Shallow downgradient -750' 27.9 29.0 29.1 24.1

ENP staff gauge 31.0 29.6 27.5 17.1L-31N canal USGS AVM-1 walkway 29.1 28.1 26.7 22.5

L-31N Temperature Data

Appendix 2

Tom Aley (2011) Preliminary Results

Analysis of Dye Tracing Results from a Slurry Wall Test, Miami, Florida

Tracer Test results summary

Ozark Underground Laboratory L-31N Seepage Project MacVicar, Federico and Lamb

Table 1. Results for charcoal samplers analyzed for the presence of fluorescein and rhodamine WT (RWT) dyes.

Peak wavelengths are reported in nanometers (nm); dye concentrations are reported in parts per billion (ppb).

OUL Station Station Name Date/Time Date/Time Date Fluorescein Results RWT Results

# # Placed Recovered Recovered Peak nm Conc. ppb Peak nm Conc. ppb

U1131 N1 Shallow well-200' 8/24/10 1335 8/31/10 1210 8/31/2010 ND ND


U1129 N14 Deep well-250'-22' 8/24/10 1325 8/31/10 1200 8/31/2010 ND ND

U1130 N15 Deep well-250'-39' 8/24/10 1325 8/31/10 1200 8/31/2010 ND ND

U1126 N18 Deep well-750'-22' 8/24/10 1255 8/31/10 1140 8/31/2010 ND ND

U1127 N19 Deep well-750'-39' 8/24/10 1255 8/31/10 1140 8/31/2010 ND ND

U1132 N21 Canal-0' 8/24/10 1350 8/31/10 1215 8/31/2010 ND ND

U1125 N37 Canal-1000' 8/24/10 1245 8/31/10 1120 8/31/2010 ND ND

U1128 N41 Shallow well -500' 8/24/10 1310 8/31/10 1150 8/31/2010 ND ND

U1122 S1 Shallow well-200' 8/24/10 1215 8/31/10 1110 8/31/2010 ND ND


U1119 S14 Deep well-250'-22' 8/24/10 1205 8/31/10 1105 8/31/2010 ND ND

U1121 S15 Deep well-250'-39' 8/24/10 1205 8/31/10 1105 8/31/2010 ND ND

U1116 S18 Deep Well-750'-22' 8/24/10 1140 8/31/10 1035 8/31/2010 ND ND

U1117 S19 Deep well-750'-39' 8/24/10 1140 8/31/10 1035 8/31/2010 ND ND

U1123 S21 Canal-0' 8/24/10 1225 8/31/10 1115 8/31/2010 ND ND

U1115 S37 Canal-1000' 8/24/10 1120 8/31/10 1025 8/31/2010 ND ND




U1770 N14 Deep well-250'-22' 10/5/10 1350 10/12/10 1045 10/12/2010 ND ND

U1771 N15 Deep well-250'-39' 10/5/10 1350 10/12/10 1046 10/12/2010 ND ND

U1767 N18 Deep well-750'-22' 10/5/10 1335 10/12/10 1110 10/12/2010 ND ND

U1768 N19 Deep well-750'-39' 10/5/10 1335 10/12/10 1110 10/12/2010 ND ND

U1773 N21 Canal-0' 10/5/10 1348 10/12/10 1019 10/12/2010 ND ND

U1766 N37 Canal-1000' 10/5/10 1332 10/12/10 1120 10/12/2010 ND ND

U1769 N41 Shallow well -500' 10/5/10 1340 10/12/10 1055 10/12/2010 ND ND



U1779 S14 Deep well-250'-22' 10/5/10 1320 10/12/10 1145 10/12/2010 ND ND

U1781 S15 Deep well-250'-39' 10/5/10 1320 10/12/10 1145 10/12/2010 ND ND

U1776 S18 Deep Well-750'-22' 10/5/10 1300 10/12/10 1210 10/12/2010 ND ND

U1777 S19 Deep well-750'-39' 10/5/10 1300 10/12/10 1210 10/12/2010 ND ND

U1783 S21 Canal-0' 10/5/10 1325 10/12/10 1135 10/12/2010 ND ND

U1775 S37 Canal-1000' 10/5/10 1305 10/12/10 1220 10/12/2010 ND ND



U1917 N2 Shallow Well-300' 10/12/10 1100 10/14/10 1345 10/14/2010 ND ND








U1923 N10 Shallow well-(-5) 10/12/10 1027 10/14/10 1405 10/14/2010 ND ND

U1924 N11 Shallow well-(-15') 10/12/10 1030 10/14/10 1406 10/14/2010 ND ND



U1919 N14 Deep well-250'-22' downgradient 10/12/10 1042 10/14/10 1352 10/14/2010 ND ND


U1913 N16 Deep Well-500'-22' downgradient 10/12/10 1100 10/14/10 1335 10/14/2010 ND ND



Page 1 of 19







U1966 N20 Canal-(-50') 10/12/10 1015 10/14/10 1105 10/14/2010 ND ND

U1965 N21 Canal-0' 10/12/10 1005 10/14/10 1107 10/14/2010 ND ND

U1964 N22 Canal-50' 10/12/10 1005 10/14/10 1109 10/14/2010 ND ND

U1963 N23 Canal-100' 10/12/10 1005 10/14/10 1111 10/14/2010 ND ND

U1962 N24 Canal-200' 10/12/10 1005 10/14/10 1113 10/14/2010 ND ND

U1961 N25 Canal-250' 10/12/10 1005 10/14/10 1115 10/14/2010 ND 569.0 70.9

U1961D N25 Canal-250' 10/12/10 1005 10/14/10 1115 10/14/2010 ND 569.2 70.3

U1959 N26 Canal-300' 10/12/10 1005 10/14/10 1117 10/14/2010 ND 568.6 20.5

U1958 N27 Canal-350' 10/12/10 1005 10/14/10 1119 10/14/2010 ND 570.2 17.3

U1957 N28 Canal-450' 10/12/10 1005 10/14/10 1121 10/14/2010 515.4 205 568.7 19.7

U1956 N29 Canal-500' 10/12/10 1005 10/14/10 1123 10/14/2010 515.9 1,460 ND

U1956D N29 Canal-500' 10/12/10 1005 10/14/10 1123 10/14/2010 516.3 1,650 ND

U1955 N30 Canal-550' 10/12/10 1005 10/14/10 1125 10/14/2010 515.2 135 570.2 3.58

U1954 N31 Canal-600' 10/12/10 1005 10/14/10 1127 10/14/2010 515.3 158 570.0 5.52

U1953 N32 Canal-700' 10/12/10 0955 10/14/10 1129 10/14/2010 515.3 77.9 571.2 5.60

U1952 N33 Canal-750' 10/12/10 0955 10/14/10 1131 10/14/2010 515.2 41.5 569.3 35.2

U1952D N33 Canal-750' 10/12/10 0955 10/14/10 1131 10/14/2010 515.4 57.5 568.9 51.6

U1951 N34 Canal-800' 10/12/10 0955 10/14/10 1133 10/14/2010 515.4 24.2 569.3 12.9

U1950 N35 Canal-850' 10/12/10 0955 10/14/10 1135 10/14/2010 515.2 49.0 569.6 19.5

U1949 N36 Canal-950' 10/12/10 0955 10/14/10 1137 10/14/2010 515.3 41.0 570.3 14.7

U1948 N37 Canal-1000' 10/12/10 0955 10/14/10 1139 10/14/2010 515.0 22.6 570.2 5.66

U1947 N38 Canal-1050' 10/12/10 0955 10/14/10 1141 10/14/2010 515.2 33.5 569.6 9.42

U1946 N39 Canal-1100' 10/12/10 0955 10/14/10 1145 10/14/2010 515.3 34.4 569.7 14.3

U1918 N40 Shallow Well-250' downgradient 10/12/10 1042 10/14/10 1355 10/14/2010 ND 568.6 220

U1912 N41 Shallow well 500' downgradient 10/12/10 1100 10/14/10 1337 10/14/2010 516.0 1,280 ND



U1896 S2 Shallow Well-300' 10/12/10 1230 10/14/10 1245 10/14/2010 ND ND








U1898 S14 Deep well-250'-22' downgradient 10/12/10 1145 10/14/10 1250 10/14/2010 ND ND


U1892 S16 Deep Well-500'-22' downgradient 10/12/10 1230 10/14/10 1235 10/14/2010 ND ND




U1945 S20 Canal-(-50') 10/12/10 0955 10/14/10 1105 10/14/2010 515.4 15.9 ND

U1944 S21 Canal-0' 10/12/10 0955 10/14/10 1107 10/14/2010 515.3 16.7 ND

U1943 S22 Canal-50' 10/12/10 0955 10/14/10 1109 10/14/2010 515.2 12.1 ND

U1942 S23 Canal-100' 10/12/10 0955 10/14/10 1111 10/14/2010 515.0 17.2 569.4 4.01

U1941 S24 Canal-200' 10/12/10 0955 10/14/10 1113 10/14/2010 515.2 15.4 ND

U1939 S25 Canal-250' 10/12/10 0955 10/14/10 1115 10/14/2010 515.1 25.4 569.5 21.1

U1939D S25 Canal-250' 10/12/10 0955 10/14/10 1115 10/14/2010 515.1 19.2 569.5 15.3

U1938 S26 Canal-300' 10/12/10 0945 10/14/10 1117 10/14/2010 515.5 13.4 569.1 142

U1937 S27 Canal-350' 10/12/10 0945 10/14/10 1119 10/14/2010 515.4 20.2 568.9 101

U1936 S28 Canal-450' 10/12/10 0945 10/14/10 1121 10/14/2010 515.4 18.2 569.1 54.5

U1935 S29 Canal-500' 10/12/10 0945 10/14/10 1123 10/14/2010 516.0 1,100 570.0 47.1

U1935D S29 Canal-500' 10/12/10 0945 10/14/10 1123 10/14/2010 516.0 1,240 569.0 65.3

Page 2 of 19






U1934 S30 Canal-550' 10/12/10 0945 10/14/10 1125 10/14/2010 515.4 213 569.2 23.6

U1933 S31 Canal-600' 10/12/10 0945 10/14/10 1127 10/14/2010 515.6 222 568.8 28.6

U1932 S32 Canal-700' 10/12/10 0945 10/14/10 1129 10/14/2010 515.4 180 569.5 36.6

U1931 S33 Canal-750' 10/12/10 0945 10/14/10 1131 10/14/2010 515.1 122 569.3 504

U1931D S33 Canal-750' 10/12/10 0945 10/14/10 1131 10/14/2010 515.2 124 569.1 583

U1930 S34 Canal-800' 10/12/10 0945 10/14/10 1133 10/14/2010 515.4 130 569.0 226

U1929 S35 Canal-850' 10/12/10 0945 10/14/10 1135 10/14/2010 515.2 120 569.3 173

U1928 S36 Canal-950' 10/12/10 0945 10/14/10 1137 10/14/2010 515.2 107 569.3 107

U1927 S37 Canal-1000' 10/12/10 0945 10/14/10 1139 10/14/2010 515.3 77.4 569.1 70.9

U1926 S38 Canal-1050' 10/12/10 0945 10/14/10 1141 10/14/2010 515.3 63.7 569.1 46.1

U1925 S39 Canal-1100' 10/12/10 0945 10/14/10 1145 10/14/2010 515.4 63.7 568.8 42.8

U1897 S40 Shallow Well-250' downgradient 10/12/10 1145 10/14/10 1255 10/14/2010 ND ND

U1891 S41 Shallow well-500' downgradient 10/12/10 1230 10/14/10 1238 10/14/2010 515.1 8.68 ND

U1885 S42 Shallow Well-750' downgradient 10/12/10 1230 10/14/10 1212 10/14/2010 ND 569.0 243




















U2214 N20 Canal-(-50') 10/14/10 1105 10/15/10 0953 10/15/2010 ND ND

U2213 N21 Canal-0' 10/14/10 1125 10/15/10 0955 10/15/2010 ND ND

U2212 N22 Canal-50' 10/14/10 1125 10/15/10 0957 10/15/2010 ND ND

U2211 N23 Canal-100' 10/14/10 1125 10/15/10 0959 10/15/2010 ND ND

U2210 N24 Canal-200' 10/14/10 1125 10/15/10 1001 10/15/2010 ND ND

U2209 N25 Canal-250' 10/14/10 1125 10/15/10 1003 10/15/2010 ND 569.3 800

U2209D N25 Canal-250' 10/14/10 1125 10/15/10 1003 10/15/2010 ND 569.3 568

U2208 N26 Canal-300' 10/14/10 1125 10/15/10 1005 10/15/2010 ND 569.3 217

U2207 N27 Canal-350' 10/14/10 1125 10/15/10 1007 10/15/2010 ND 569.0 102

U2206 N28 Canal-450' 10/14/10 1125 10/15/10 1009 10/15/2010 515.3 258 569.1 144

U2205 N29 Canal-500' 10/14/10 1125 10/15/10 1010 10/15/2010 516.1 3,210 568.0 55.8

U2205D N29 Canal-500' 10/14/10 1125 10/15/10 1010 10/15/2010 516.0 2,410 568.2 44.4

U2204 N30 Canal-550' 10/14/10 1125 10/15/10 1012 10/15/2010 516.1 705 568.8 59.2

U2203 N31 Canal-600' 10/14/10 1125 10/15/10 1015 10/15/2010 515.1 201 568.9 35.3

U2202 N32 Canal-700' 10/14/10 1145 10/15/10 1017 10/15/2010 515.1 208 569.3 45.9

U2201 N33 Canal-750' 10/14/10 1145 10/15/10 1019 10/15/2010 515.3 160 568.9 364

U2199 N34 Canal-800' 10/14/10 1145 10/15/10 1022 10/15/2010 515.1 106 569.2 130

U2198 N35 Canal-850' 10/14/10 1145 10/15/10 1025 10/15/2010 515.2 204 569.3 223

U2197 N36 Canal-950' 10/14/10 1145 10/15/10 1027 10/15/2010 515.1 98.5 569.4 84.8

U2196 N37 Canal-1000' 10/14/10 1145 10/15/10 1029 10/15/2010 515.0 179 569.5 154

U2195 N38 Canal-1050' 10/14/10 1145 10/15/10 1031 10/15/2010 515.0 73.5 569.4 61.5

Page 3 of 19






U2194 N39 Canal-1100' 10/14/10 1145 10/15/10 1034 10/15/2010 515.0 63.4 569.5 45.9

U2167 N40 Shallow Well-250' downgradient 10/14/10 1335 10/15/10 1130 10/15/2010 ND 568.9 1,490

U2161 N41 Shallow well -500' downgradient 10/14/10 1340 10/15/10 1115 10/15/2010 516.1 888 ND











U2147 S14 Deep well-250'-22' downgradient 10/14/10 1250 10/15/10 1203 10/15/2010 ND 569.2 274

U2148 S15 Deep well-250'-39' downgradient 10/14/10 1250 10/15/10 1203 10/15/2010 ND 569.6 68.6





U2193 S20 Canal-(-50') 10/14/10 1105 10/15/10 1323 10/15/2010 515.0 53.4 569.3 31.0

U2192 S21 Canal-0' 10/14/10 1115 10/15/10 1322 10/15/2010 515.0 57.0 569.2 37.2

U2191 S22 Canal-50' 10/14/10 1115 10/15/10 1320 10/15/2010 515.1 60.2 569.1 39.6

U2190 S23 Canal-100' 10/14/10 1115 10/15/10 1318 10/15/2010 515.3 60.8 568.9 42.3

U2189 S24 Canal-200' 10/14/10 1115 10/15/10 1316 10/15/2010 515.3 69.5 569.2 46.3

U2188 S25 Canal-250' 10/14/10 1115 10/15/10 1314 10/15/2010 515.2 64.4 569.0 120

U2188D S25 Canal-250' 10/14/10 1115 10/15/10 1314 10/15/2010 515.1 78.3 569.2 129

U2187 S26 Canal-300' 10/14/10 1145 10/15/10 1312 10/15/2010 515.1 30.4 569.2 610

U2186 S27 Canal-350' 10/14/10 1145 10/15/10 1310 10/15/2010 515.2 42.1 569.2 468

U2185 S28 Canal-450' 10/14/10 1145 10/15/10 1308 10/15/2010 515.2 58.2 569.2 375

U2184 S29 Canal-500' 10/14/10 1145 10/15/10 1305 10/15/2010 516.3 1,420 569.1 399

U2184D S29 Canal-500' 10/14/10 1145 10/15/10 1305 10/15/2010 516.3 1,310 569.0 368

U2183 S30 Canal-550' 10/14/10 1145 10/15/10 1304 10/15/2010 516.3 518 568.2 242

U2182 S31 Canal-600' 10/14/10 1145 10/15/10 1302 10/15/2010 516.2 745 569.3 411

U2181 S32 Canal-700' 10/14/10 1145 10/15/10 1300 10/15/2010 515.5 219 568.9 198

U2179 S33 Canal-750' 10/14/10 1145 10/15/10 1258 10/15/2010 516.3 206 567.9 7,830

U2179D S33 Canal-750' 10/14/10 1145 10/15/10 1258 10/15/2010 516.2 249 568.0 8,470

U2178 S34 Canal-800' 10/14/10 1145 10/15/10 1257 10/15/2010 515.1 102 569.3 611

U2177 S35 Canal-850' 10/14/10 1145 10/15/10 1254 10/15/2010 515.2 99.8 569.3 538

U2176 S36 Canal-950' 10/14/10 1145 10/15/10 1252 10/15/2010 515.1 115 569.3 398

U2175 S37 Canal-1000' 10/14/10 1145 10/15/10 1250 10/15/2010 515.1 94.4 569.4 325

U2174 S38 Canal-1050' 10/14/10 1145 10/15/10 1249 10/15/2010 515.1 87.2 569.3 278

U2173 S39 Canal-1100' 10/14/10 1145 10/15/10 1247 10/15/2010 515.2 85.2 569.2 245



U2133 S42 Shallow Well-750' downgradient 10/14/10 1200 10/15/10 1237 10/15/2010 ND 567.7 2,930










Page 4 of 19
















U2130 N20 Canal-(-50') 10/15/10 0953 10/17/10 0926 10/17/2010 ND ND

U2129 N21 Canal-0' 10/15/10 1012 10/17/10 0928 10/17/2010 ND ND

U2128 N22 Canal-50' 10/15/10 1012 10/17/10 0930 10/17/2010 ND ND

U2127 N23 Canal-100' 10/15/10 1012 10/17/10 0932 10/17/2010 ND ND

U2126 N24 Canal-200' 10/15/10 1012 10/17/10 0935 10/17/2010 ND ND

U2125 N25 Canal-250' 10/15/10 1012 10/17/10 0938 10/17/2010 ND 569.0 419

U2125D N25 Canal-250' 10/15/10 1012 10/17/10 0938 10/17/2010 ND 569.1 603

U2124 N26 Canal-300' 10/15/10 1012 10/17/10 0942 10/17/2010 ND 569.0 221

U2123 N27 Canal-350' 10/15/10 1012 10/17/10 0943 10/17/2010 ND 569.6 169

U2122 N28 Canal-450' 10/15/10 1012 10/17/10 0947 10/17/2010 515.2 260 568.9 72.5

U2121 N29 Canal-500' 10/15/10 1012 10/17/10 0950 10/17/2010 516.3 2,850 568.4 59.9

U2121D N29 Canal-500' 10/15/10 1012 10/17/10 0950 10/17/2010 516.4 3,090 568.9 91.3

U2119 N30 Canal-550' 10/15/10 1012 10/17/10 0952 10/17/2010 516.3 555 569.1 64.2

U2118 N31 Canal-600' 10/15/10 1015 10/17/10 0955 10/17/2010 515.2 234 569.4 54.9

U2117 N32 Canal-700' 10/15/10 1034 10/17/10 0958 10/17/2010 515.4 192 569.3 96.1

U2116 N33 Canal-750' 10/15/10 1034 10/17/10 1001 10/17/2010 515.3 135 569.3 644

U2116D N33 Canal-750' 10/15/10 1034 10/17/10 1001 10/17/2010 515.3 115 569.3 631

U2115 N34 Canal-800' 10/15/10 1034 10/17/10 1005 10/17/2010 515.3 65.3 569.1 122

U2114 N35 Canal-850' 10/15/10 1034 10/17/10 1007 10/17/2010 515.4 126 569.1 186

U2113 N36 Canal-950' 10/15/10 1034 10/17/10 1010 10/17/2010 515.4 111 569.1 164

U2112 N37 Canal-1000' 10/15/10 1034 10/17/10 1012 10/17/2010 515.3 97.4 569.3 130

U2111 N38 Canal-1050' 10/15/10 1034 10/17/10 1014 10/17/2010 515.4 66.1 569.3 95.8

U2110 N39 Canal-1100' 10/15/10 1034 10/17/10 1017 10/17/2010 515.3 70.7 569.2 107


U2076 N41 Shallow well -500' downgradient 10/15/10 1113 10/17/10 1101 10/17/2010 516.1 1,470 ND

















U2109 S20 Canal-(-50') 10/15/10 1323 10/17/10 1350 10/17/2010 515.4 57.8 569.3 79.0

U2108 S21 Canal-0' 10/15/10 1316 10/17/10 1347 10/17/2010 515.2 49.4 569.2 70.5

U2107 S22 Canal-50' 10/15/10 1316 10/17/10 1344 10/17/2010 515.2 30.9 569.4 48.3

Page 5 of 19






U2106 S23 Canal-100' 10/15/10 1316 10/17/10 1342 10/17/2010 515.3 45.2 569.4 76.7

U2105 S24 Canal-200' 10/15/10 1316 10/17/10 1340 10/17/2010 515.4 39.6 568.9 54.1

U2104 S25 Canal-250' 10/15/10 1314 10/17/10 1336 10/17/2010 515.1 37.5 569.5 110

U2104D S25 Canal-250' 10/15/10 1314 10/17/10 1336 10/17/2010 515.3 37.4 569.3 101

U2103 S26 Canal-300' 10/15/10 1247 10/17/10 1333 10/17/2010 515.4 36.2 569.5 915

U2102 S27 Canal-350' 10/15/10 1247 10/17/10 1337 10/17/2010 515.3 27.3 569.3 428

U2101 S28 Canal-450' 10/15/10 1247 10/17/10 1330 10/17/2010 515.3 48.5 569.6 396

U2099 S29 Canal-500' 10/15/10 1247 10/17/10 1325 10/17/2010 516.1 1,610 569.7 327

U2099D S29 Canal-500' 10/15/10 1247 10/17/10 1325 10/17/2010 516.2 1,750 569.5 375

U2098 S30 Canal-550' 10/15/10 1247 10/17/10 1321 10/17/2010 515.9 418 569.4 232

U2097 S31 Canal-600' 10/15/10 1247 10/17/10 1318 10/17/2010 516.0 413 569.4 313

U2096 S32 Canal-700' 10/15/10 1247 10/17/10 1315 10/17/2010 515.3 157 569.4 205

U2095 S33 Canal-750' 10/15/10 1247 10/17/10 1313 10/17/2010 516.3 147 568.1 8,520

U2095D S33 Canal-750' 10/15/10 1247 10/17/10 1313 10/17/2010 516.4 105 568.0 8,320

U2094 S34 Canal-800' 10/15/10 1247 10/17/10 1310 10/17/2010 515.1 143 570.0 988

U2093 S35 Canal-850' 10/15/10 1247 10/17/10 1308 10/17/2010 515.1 72.2 569.9 414

U2092 S36 Canal-950' 10/15/10 1247 10/17/10 1306 10/17/2010 515.1 97.9 569.9 379

U2091 S37 Canal-1000' 10/15/10 1247 10/17/10 1304 10/17/2010 515.1 99.3 570.0 349

U2090 S38 Canal-1050' 10/15/10 1247 10/17/10 1302 10/17/2010 515.1 85.9 569.8 306

U2089 S39 Canal-1100' 10/15/10 1247 10/17/10 1300 10/17/2010 515.2 76.9 569.6 239













U2268 N10 Shallow Well-(-5) 10/17/10 1056 10/20/10 1327 10/20/2010 ND ND

U2269 N11 Shallow Well-(-15') 10/17/10 1134 10/20/10 1330 10/20/2010 ND ND









U2310 N20 Canal-(-50') 10/17/10 0926 10/20/10 1040 10/20/2010 ND ND

U2309 N21 Canal-0' 10/17/10 0952 10/20/10 1042 10/20/2010 ND ND

U2308 N22 Canal-50' 10/17/10 0952 10/20/10 1044 10/20/2010 ND ND

U2307 N23 Canal-100' 10/17/10 0952 10/20/10 1046 10/20/2010 ND ND

U2306 N24 Canal-200' 10/17/10 0952 10/20/10 1048 10/20/2010 ND ND

U2305 N26 Canal-300' 10/17/10 0952 10/20/10 1052 10/20/2010 ND 569.6 146

U2304 N27 Canal-350' 10/17/10 0952 10/20/10 1054 10/20/2010 ND 569.0 165

U2303 N28 Canal-450' 10/17/10 0952 10/20/10 1056 10/20/2010 516.2 619 568.9 77.6

U2302 N29 Canal-500' 10/17/10 0952 10/20/10 1058 10/20/2010 516.3 950 568.5 34.8

U2302D N29 Canal-500' 10/17/10 0952 10/20/10 1058 10/20/2010 516.3 1,690 569.2 73.0

U2301 N30 Canal-550' 10/17/10 0952 10/20/10 1100 10/20/2010 515.8 218 568.7 49.8

U2299 N31 Canal-600' 10/17/10 0955 10/20/10 1102 10/20/2010 515.5 139 569.1 57.3

Page 6 of 19






U2298 N32 Canal-700' 10/17/10 1017 10/20/10 1104 10/20/2010 515.3 73.4 569.1 103

U2297 N33 Canal-750' 10/17/10 1017 10/20/10 1106 10/20/2010 515.5 61.9 569.0 474

U2297D N33 Canal-750' 10/17/10 1017 10/20/10 1106 10/20/2010 515.4 57.2 569.1 474

U2296 N34 Canal-800' 10/17/10 1017 10/20/10 1108 10/20/2010 515.5 37.3 568.9 167

U2295 N35 Canal-850' 10/17/10 1017 10/20/10 1110 10/20/2010 515.3 29.7 568.9 90.6

U2294 N36 Canal-950' 10/17/10 1017 10/20/10 1112 10/20/2010 515.3 21.8 569.2 58.3

U2293 N37 Canal-1000' 10/17/10 1017 10/20/10 1114 10/20/2010 515.5 35.6 568.9 79.7

U2292 N38 Canal-1050' 10/17/10 1017 10/20/10 1116 10/20/2010 515.5 32.8 568.9 83.3

U2291 N39 Canal-1100' 10/17/10 1017 10/20/10 1117 10/20/2010 515.4 20.8 568.9 47.3



















U2290 S20 Canal-(-50') 10/17/10 1350 10/20/10 1050 10/20/2010 515.4 15.6 568.7 35.4

U2289 S21 Canal-0' 10/17/10 1340 10/20/10 1052 10/20/2010 515.3 24.3 569.0 52.1

U2288 S22 Canal-50' 10/17/10 1340 10/20/10 1054 10/20/2010 515.3 10.1 569.0 20.8

U2287 S23 Canal-100' 10/17/10 1340 10/20/10 1056 10/20/2010 515.4 17.5 568.9 41.6

U2286 S24 Canal-200' 10/17/10 1340 10/20/10 1058 10/20/2010 515.5 13.1 569.0 32.9

U2285 S25 Canal-250' 10/17/10 1336 10/20/10 1100 10/20/2010 515.6 15.5 569.1 600

U2285D S25 Canal-250' 10/17/10 1336 10/20/10 1100 10/20/2010 515.3 13.4 569.1 224

U2284 S26 Canal-300' 10/17/10 1300 10/20/10 1102 10/20/2010 515.5 16.5 569.3 624

U2283 S27 Canal-350' 10/17/10 1300 10/20/10 1107 10/20/2010 515.6 7.62 568.9 130

U2282 S28 Canal-450' 10/17/10 1300 10/20/10 1106 10/20/2010 515.9 16.9 568.8 142

U2281 S29 Canal-500' 10/17/10 1300 10/20/10 1108 10/20/2010 516.1 635 568.5 141

U2281D S29 Canal-500' 10/17/10 1300 10/20/10 1108 10/20/2010 516.4 762 570.0 157

U2279 S30 Canal-550' 10/17/10 1300 10/20/10 1110 10/20/2010 515.4 144 569.3 83.8

U2278 S31 Canal-600' 10/17/10 1300 10/20/10 1112 10/20/2010 515.5 103 569.0 84.5

U2277 S32 Canal-700' 10/17/10 1300 10/20/10 1114 10/20/2010 515.5 69.2 569.2 79.0

U2276 S33 Canal-750' 10/17/10 1300 10/20/10 1116 10/20/2010 516.0 62.7 568.0 8,460

U2276D S33 Canal-750' 10/17/10 1300 10/20/10 1116 10/20/2010 516.2 76.3 568.4 9,380

U2275 S34 Canal-800' 10/17/10 1300 10/20/10 1118 10/20/2010 515.5 69.1 569.3 458

U2274 S35 Canal-850' 10/17/10 1300 10/20/10 1120 10/20/2010 515.6 50.9 569.0 269

U2273 S36 Canal-950' 10/17/10 1300 10/20/10 1122 10/20/2010 515.6 44.4 568.9 173

U2272 S37 Canal-1000' 10/17/10 1300 10/20/10 1124 10/20/2010 515.5 33.1 568.9 114

U2271 S38 Canal-1050' 10/17/10 1300 10/20/10 1126 10/20/2010 515.5 27.9 568.8 90.5

U2270 S39 Canal-1100' 10/17/10 1300 10/20/10 1128 10/20/2010 515.8 27.1 569.2 85.4

U2243 S40 Shallow Well-250' downgradient 10/17/10 1203 10/20/10 1223 10/20/2010 ND 570.6 6.60




Page 7 of 19
























U2537 N20 Canal-(-50') 10/20/10 1040 10/27/10 1040 10/27/2010 ND ND

U2536 N21 Canal-0' 10/20/10 1100 10/27/10 1042 10/27/2010 ND ND

U2535 N23 Canal-100' 10/20/10 1100 10/27/10 1046 10/27/2010 ND ND

U2534 N24 Canal-200' 10/20/10 1100 10/27/10 1048 10/27/2010 516.4 1.22 569.2 5.24

U2533 N25 Canal-250' 10/20/10 1100 10/27/10 1050 10/27/2010 516.3 1.87 569.2 293

U2533D N25 Canal-250' 10/20/10 1100 10/27/10 1050 10/27/2010 516.7 2.39 568.8 339

U2532 N26 Canal-300' 10/20/10 1100 10/27/10 1052 10/27/2010 515.9 1.66 569.6 194

U2531 N27 Canal-350' 10/20/10 1100 10/27/10 1054 10/27/2010 515.5 5.39 569.3 106

U2530 N28 Canal-450' 10/20/10 1100 10/27/10 1056 10/27/2010 515.6 190 569.0 57.1

U2529 N29 Canal-500' 10/20/10 1100 10/27/10 1058 10/27/2010 516.4 2,570 568.2 33.9

U2529D N29 Canal-500' 10/20/10 1100 10/27/10 1058 10/27/2010 516.1 2,650 567.7 43.2

U2528 N30 Canal-550' 10/20/10 1100 10/27/10 1059 10/27/2010 515.2 164 569.0 46.3

U2527 N31 Canal-600' 10/20/10 1102 10/27/10 1100 10/27/2010 515.5 57.7 568.7 38.0

U2526 N32 Canal-700' 10/20/10 1117 10/27/10 1102 10/27/2010 515.3 30.9 569.1 78.8

U2525 N33 Canal-750' 10/20/10 1117 10/27/10 1104 10/27/2010 515.3 37.5 569.3 749

U2525D N33 Canal-750' 10/20/10 1117 10/27/10 1104 10/27/2010 515.3 42.5 569.7 771

U2524 N34 Canal-800' 10/20/10 1117 10/27/10 1106 10/27/2010 515.3 30.3 569.2 200

U2523 N35 Canal-850' 10/20/10 1117 10/27/10 1108 10/27/2010 515.3 28.0 569.1 157

U2522 N36 Canal-950' 10/20/10 1117 10/27/10 1110 10/27/2010 515.5 17.1 568.9 83.4

U2521 N37 Canal-1000' 10/20/10 1117 10/27/10 1112 10/27/2010 515.4 22.7 569.1 102

U2519 N38 Canal-1050' 10/20/10 1117 10/27/10 1114 10/27/2010 515.5 16.1 569.0 60.6

U2518 N39 Canal-1100' 10/20/10 1117 10/27/10 1116 10/27/2010 515.2 11.2 569.1 48.6















Page 8 of 19










U2517 S20 Canal-(-50') 10/20/10 1050 10/27/10 1045 10/27/2010 515.4 13.4 568.9 48.7

U2516 S21 Canal-0' 10/20/10 1058 10/27/10 1047 10/27/2010 514.8 7.46 568.6 21.8

U2515 S22 Canal-50' 10/20/10 1058 10/27/10 1049 10/27/2010 515.5 12.9 569.1 54.8

U2514 S23 Canal-100' 10/20/10 1058 10/27/10 1051 10/27/2010 515.5 10.3 568.9 38.8

U2513 S24 Canal-200' 10/20/10 1058 10/27/10 1052 10/27/2010 515.6 12.1 569.4 43.7

U2512 S25 Canal-250' 10/20/10 1100 10/27/10 1055 10/27/2010 515.7 11.1 569.1 149

U2512D S25 Canal-250' 10/20/10 1100 10/27/10 1055 10/27/2010 515.7 7.60 569.1 110

U2511 S26 Canal-300' 10/20/10 1128 10/27/10 1057 10/27/2010 515.8 13.2 569.5 408

U2510 S27 Canal-350' 10/20/10 1128 10/27/10 1059 10/27/2010 515.7 7.18 569.0 129

U2509 S28 Canal-450' 10/20/10 1128 10/27/10 1101 10/27/2010 515.6 11.1 569.1 112

U2508 S29 Canal-500' 10/20/10 1128 10/27/10 1103 10/27/2010 516.1 518 569.1 66.2

U2508D S29 Canal-500' 10/20/10 1128 10/27/10 1103 10/27/2010 516.3 556 569.4 96.9

U2507 S30 Canal-550' 10/20/10 1128 10/27/10 1105 10/27/2010 515.5 92.9 569.4 48.8

U2506 S31 Canal-600' 10/20/10 1128 10/27/10 1107 10/27/2010 515.5 95.7 569.3 87.8

U2505 S32 Canal-700' 10/20/10 1128 10/27/10 1109 10/27/2010 515.2 61.4 569.6 80.8

U2504 S33 Canal-750' 10/20/10 1128 10/27/10 1111 10/27/2010 516.7 47.6 568.0 7,900

U2504D S33 Canal-750' 10/20/10 1128 10/27/10 1111 10/27/2010 516.8 60.5 568.0 9,510

U2503 S34 Canal-800' 10/20/10 1128 10/27/10 1113 10/27/2010 515.5 36.8 569.3 263

U2502 S35 Canal-850' 10/20/10 1128 10/27/10 1115 10/27/2010 515.5 37.1 569.3 197

U2501 S36 Canal-950' 10/20/10 1128 10/27/10 1117 10/27/2010 515.5 28.3 569.6 125

U2499 S37 Canal-1000' 10/20/10 1128 10/27/10 1119 10/27/2010 515.4 22.8 569.2 92.4

U2498 S38 Canal-1050' 10/20/10 1128 10/27/10 1121 10/27/2010 515.7 15.6 568.8 58.2

U2497 S39 Canal-1100' 10/20/10 1128 10/27/10 1123 10/27/2010 515.7 15.0 569.2 62.4


U2464 S41 Shallow well-500' downgradient 10/20/10 1145 10/27/10 1203 10/27/2010 515.5 102 ND





















U2871 N20 Canal-(-50') 10/27/10 1040 11/3/10 1040 11/3/2010 ND ND

U2870 N21 Canal-0' 10/27/10 1059 11/3/10 1042 11/3/2010 ND ND

U2869 N22 Canal-50' 10/27/10 1059 11/3/10 1044 11/3/2010 ND ND

U2868 N23 Canal-100' 10/27/10 1059 11/3/10 1046 11/3/2010 ND ND

U2867 N24 Canal-200' 10/27/10 1059 11/3/10 1048 11/3/2010 ND ND

Page 9 of 19






U2866 N25 Canal-250' 10/27/10 1059 11/3/10 1050 11/3/2010 ND 569.4 151

U2866D N25 Canal-250' 10/27/10 1059 11/3/10 1050 11/3/2010 ND 569.9 131

U2865 N26 Canal-300' 10/27/10 1059 11/3/10 1052 11/3/2010 ND 569.3 97.1

U2864 N27 Canal-350' 10/27/10 1059 11/3/10 1054 11/3/2010 517.2 2.65 570.0 58.3

U2863 N28 Canal-450' 10/27/10 1059 11/3/10 1056 11/3/2010 515.4 119 569.3 30.0

U2862 N29 Canal-500' 10/27/10 1059 11/3/10 1058 11/3/2010 515.9 3,660 567.4** 14.9

U2862D N29 Canal-500' 10/27/10 1059 11/3/10 1058 11/3/2010 515.9 3,440 567.6** 15.0

U2861 N30 Canal-550' 10/27/10 1059 11/3/10 1100 11/3/2010 515.2 107 569.5 26.2

U2859 N31 Canal-600' 10/27/10 1100 11/3/10 1102 11/3/2010 515.4 28.6 569.8 35.8

U2858 N32 Canal-700' 10/27/10 1116 11/3/10 1104 11/3/2010 515.5 18.3 569.5 184

U2857 N33 Canal-750' 10/27/10 1116 11/3/10 1106 11/3/2010 515.3 13.6 569.4 462

U2857D N33 Canal-750' 10/27/10 1116 11/3/10 1106 11/3/2010 515.3 10.1 569.1 300

U2856 N34 Canal-800' 10/27/10 1116 11/3/10 1108 11/3/2010 515.3 12.9 569.3 141

U2855 N35 Canal-850' 10/27/10 1116 11/3/10 1110 11/3/2010 515.5 12.0 568.4 99.9

U2854 N36 Canal-950' 10/27/10 1116 11/3/10 1112 11/3/2010 515.3 9.02 569.5 71.1

U2853 N37 Canal-1000' 10/27/10 1116 11/3/10 1114 11/3/2010 515.4 10.2 569.5 61.6

U2852 N38 Canal-1050' 10/27/10 1116 11/3/10 1116 11/3/2010 515.4 5.21 568.9 31.1

U2851 N39 Canal-1100' 10/27/10 1116 11/3/10 1118 11/3/2010 515.0 6.76 569.7 36.2



















U2850 S20 Canal-(-50') 10/27/10 1045 11/3/10 1045 11/3/2010 515.5 5.95 569.8 34.5

U2849 S21 Canal-0' 10/27/10 1052 11/3/10 1047 11/3/2010 515.2 6.31 569.6 30.9

U2848 S22 Canal-50' 10/27/10 1052 11/3/10 1049 11/3/2010 515.2 5.12 569.6 27.5

U2847 S23 Canal-100' 10/27/10 1052 11/3/10 1051 11/3/2010 515.4 1.05 568.2 5.22

U2846 S24 Canal-200' 10/27/10 1052 11/3/10 1053 11/3/2010 514.8 4.25 569.0 20.4

U2845 S25 Canal-250' 10/27/10 1055 11/3/10 1055 11/3/2010 515.7 6.22 569.5 223

U2845D S25 Canal-250' 10/27/10 1055 11/3/10 1055 11/3/2010 515.7 5.61 569.3 188

U2844 S26 Canal-300' 10/27/10 1123 11/3/10 1057 11/3/2010 515.6 4.09 569.5 92.3

U2843 S27 Canal-350' 10/27/10 1123 11/3/10 1059 11/3/2010 515.7 4.54 569.7 73.7

U2842 S29 Canal-500' 10/27/10 1123 11/3/10 1103 11/3/2010 515.9 465 569.5 41.7

U2842D S29 Canal-500' 10/27/10 1123 11/3/10 1103 11/3/2010 515.2 268 569.3 43.5

U2841 S30 Canal-550' 10/27/10 1123 11/3/10 1105 11/3/2010 515.2 58.4 569.2 26.9

U2839 S31 Canal-600' 10/27/10 1123 11/3/10 1107 11/3/2010 515.3 58.0 569.5 54.1

U2838 S32 Canal-700' 10/27/10 1123 11/3/10 1109 11/3/2010 515.2 22.6 569.5 34.5

U2837 S33 Canal-750' 10/27/10 1123 11/3/10 1111 11/3/2010 515.5 12.8 569.7 1,510

U2837D S33 Canal-750' 10/27/10 1123 11/3/10 1111 11/3/2010 515.8 17.4 568.2 2,530

U2836 S34 Canal-800' 10/27/10 1123 11/3/10 1113 11/3/2010 515.1 15.7 569.7 93.6

U2835 S35 Canal-850' 10/27/10 1123 11/3/10 1115 11/3/2010 515.3 16.8 569.7 92.1

Page 10 of 19






U2834 S36 Canal-950' 10/27/10 1123 11/3/10 1117 11/3/2010 515.2 16.7 569.5 68.9

U2833 S37 Canal-1000' 10/27/10 1123 11/3/10 1119 11/3/2010 515.3 12.5 569.8 52.3

U2832 S38 Canal-1050' 10/27/10 1123 11/3/10 1121 11/3/2010 515.2 11.0 570.0 36.2

U2831 S39 Canal-1100' 10/27/10 1123 11/3/10 1123 11/3/2010 515.3 12.2 569.5 50.3










U3059 N7 Shallow Well-700' 11/3/10 1240 11/10/10 1354 11/10/2010 ND 569.6 6.41













U3116 N20 Canal-(-50') 11/3/10 1040 11/10/10 NT #VALUE! ND ND

U3115 N21 Canal-0' 11/3/10 1040 11/10/10 0930 11/10/2010 ND ND

U3114 N22 Canal-50' 11/3/10 1100 11/10/10 0932 11/10/2010 ND ND

U3113 N23 Canal-100' 11/3/10 1100 11/10/10 0934 11/10/2010 ND ND

U3112 N24 Canal-200' 11/3/10 1100 11/10/10 0936 11/10/2010 ND ND

U3111 N25 Canal-250' 11/3/10 1100 11/10/10 0938 11/10/2010 ND 568.6 73.3

U3111D N25 Canal-250' 11/3/10 1100 11/10/10 0938 11/10/2010 ND 568.6 82.9

U3110 N26 Canal-300' 11/3/10 1100 11/10/10 0940 11/10/2010 ND 568.6 35.6

U3109 N27 Canal-350' 11/3/10 1100 11/10/10 0942 11/10/2010 515.8 0.941 570.0 20.5

U3108 N28 Canal-450' 11/3/10 1100 11/10/10 0944 11/10/2010 515.6 67.7 569.0 16.3

U3107 N29 Canal-500' 11/3/10 1100 11/10/10 0946 11/10/2010 516.1 1,250 569.6** 13.3

U3107D N29 Canal-500' 11/3/10 1100 11/10/10 0946 11/10/2010 516.0 821 570.0** 12.5

U3106 N30 Canal-550' 11/3/10 1100 11/10/10 0948 11/10/2010 515.6 20.1 567.5 10.4

U3105 N31 Canal-600' 11/3/10 1102 11/10/10 0950 11/10/2010 515.8 6.90 570.6 6.29

U3104 N32 Canal-700' 11/3/10 1118 11/10/10 0952 11/10/2010 515.8 3.03 569.6 32.6

U3103 N33 Canal-750' 11/3/10 1118 11/10/10 0954 11/10/2010 515.8 4.08 569.2 192

U3103D N33 Canal-750' 11/3/10 1118 11/10/10 0954 11/10/2010 515.6 4.66 569.3 232

U3102 N34 Canal-800' 11/3/10 1118 11/10/10 0956 11/10/2010 516.0 2.92 569.5 62.9

U3101 N35 Canal-850' 11/3/10 1118 11/10/10 0958 11/10/2010 515.2 3.13 569.4 42.6

U3099 N36 Canal-950' 11/3/10 1118 11/10/10 1000 11/10/2010 516.2 2.11 569.0 19.7

U3098 N37 Canal-1000' 11/3/10 1118 11/10/10 1002 11/10/2010 515.2 3.10 569.0 26.2

U3097 N38 Canal-1050' 11/3/10 1118 11/10/10 1004 11/10/2010 516.0 1.97 570.6 14.6

U3096 N39 Canal-1100' 11/3/10 1118 11/10/10 1006 11/10/2010 515.8 1.29 570.0 9.26


U3063 N41 Shallow well -500' downgradient 11/3/10 1332 11/10/10 1406 11/10/2010 515.2 59.5 ND




Page 11 of 19



















U3095 S20 Canal-(-50') 11/3/10 1045 11/10/10 1015 11/10/2010 516.6 1.43 569.8 9.06

U3094 S21 Canal-0' 11/3/10 1053 11/10/10 1017 11/10/2010 515.8 0.972 570.2 5.24

U3093 S22 Canal-50' 11/3/10 1053 11/10/10 1019 11/10/2010 515.6 1.23 569.4 9.47

U3092 S23 Canal-100' 11/3/10 1053 11/10/10 1021 11/10/2010 516.4 1.23 570.2 10.7

U3091 S24 Canal-200' 11/3/10 1053 11/10/10 1023 11/10/2010 516.0 1.36 569.4 8.21

U3090 S25 Canal-250' 11/3/10 1055 11/10/10 1025 11/10/2010 515.6 1.88 569.4 69.5

U3090D S25 Canal-250' 11/3/10 1055 11/10/10 1025 11/10/2010 516.0 2.25 570.2 65.2

U3089 S26 Canal-300' 11/3/10 1123 11/10/10 1027 11/10/2010 516.4 3.21 570.4 53.5

U3088 S27 Canal-350' 11/3/10 1123 11/10/10 1029 11/10/2010 515.8 1.94 568.8 14.1

U3087 S28 Canal-450' 11/3/10 1123 11/10/10 1031 11/10/2010 515.8 2.02 569.2 11.3

U3086 S29 Canal-500' 11/3/10 1123 11/10/10 1033 11/10/2010 515.4 75.7 570.4 14.7

U3086D S29 Canal-500' 11/3/10 1123 11/10/10 1033 11/10/2010 515.0 67.7 567.8 12.8

U3085 S30 Canal-550' 11/3/10 1123 11/10/10 1035 11/10/2010 515.2 26.6 569.0 17.5

U3084 S31 Canal-600' 11/3/10 1123 11/10/10 1037 11/10/2010 515.0 17.8 569.2 15.4

U3083 S32 Canal-700' 11/3/10 1123 11/10/10 1039 11/10/2010 515.4 10.9 569.8 16.1

U3082 S33 Canal-750' 11/3/10 1123 11/10/10 1041 11/10/2010 516.2 7.54 569.6 766

U3082D S33 Canal-750' 11/3/10 1123 11/10/10 1041 11/10/2010 515.2 6.43 569.6 665

U3081 S34 Canal-800' 11/3/10 1123 11/10/10 1043 11/10/2010 515.2 4.59 570.4 26.6

U3079 S35 Canal-850' 11/3/10 1123 11/10/10 1045 11/10/2010 515.2 4.73 569.0 19.8

U3078 S36 Canal-950' 11/3/10 1123 11/10/10 1047 11/10/2010 515.6 3.25 569.4 11.2

U3077 S37 Canal-1000' 11/3/10 1123 11/10/10 1049 11/10/2010 514.8 2.60 570.0 7.64

U3076 S38 Canal-1050' 11/3/10 1123 11/10/10 1051 11/10/2010 515.6 2.36 570.0 9.47

U3075 S39 Canal-1100' 11/3/10 1123 11/10/10 1053 11/10/2010 516.0 3.42 570.2 11.0










U3429 N7 Shallow Well-700' 11/10/10 1354 11/17/10 1235 11/17/2010 ND 568.6 108









Page 12 of 19










U3486 N20 Canal-(-50') 11/10/10 0928 11/17/10 1040 11/17/2010 ND ND

U3485 N21 Canal-0' 11/10/10 0930 11/17/10 1042 11/17/2010 ND ND

U3484 N22 Canal-50' 11/10/10 0932 11/17/10 1044 11/17/2010 ND ND

U3483 N23 Canal-100' 11/10/10 0934 11/17/10 1046 11/17/2010 ND ND

U3482 N24 Canal-200' 11/10/10 0936 11/17/10 1048 11/17/2010 ND ND

U3481 N25 Canal-250' 11/10/10 0938 11/17/10 1050 11/17/2010 ND 569.1 108

U3481D N25 Canal-250' 11/10/10 0938 11/17/10 1050 11/17/2010 ND 569.4 118

U3479 N26 Canal-300' 11/10/10 0940 11/17/10 1052 11/17/2010 ND 568.2 50.2

U3478 N27 Canal-350' 11/10/10 0942 11/17/10 1054 11/17/2010 ND 569 20.8

U3477 N28 Canal-450' 11/10/10 0944 11/17/10 1056 11/17/2010 515.6 85.2 569.1 16.4

U3476 N29 Canal-500' 11/10/10 0946 11/17/10 1058 11/17/2010 515.6 81.8 568.0 10.9

U3476D N29 Canal-500' 11/10/10 0946 11/17/10 1058 11/17/2010 515.4 58.1 570.7 9.00

U3475 N30 Canal-550' 11/10/10 0948 11/17/10 1100 11/17/2010 515.2 15.6 569.6 6.46

U3474 N31 Canal-600' 11/10/10 0950 11/17/10 1102 11/17/2010 515.4 4.87 570.8 5.65

U3473 N32 Canal-700' 11/10/10 0952 11/17/10 1104 11/17/2010 515.9 3.82 569.1 65.0

U3472 N33 Canal-750' 11/10/10 0954 11/17/10 1106 11/17/2010 516.2 3.85 569.4 286

U3472D N33 Canal-750' 11/10/10 0954 11/17/10 1106 11/17/2010 516.3 2.18 568.8 174

U3471 N34 Canal-800' 11/10/10 0956 11/17/10 1108 11/17/2010 516.6 1.66 568.2 44.0

U3470 N35 Canal-850' 11/10/10 0958 11/17/10 1110 11/17/2010 516.8 1.31 568.6 25.0

U3469 N36 Canal-950' 11/10/10 1000 11/17/10 1112 11/17/2010 514.8 1.20 569.6 16.9

U3468 N37 Canal-1000' 11/10/10 1002 11/17/10 1114 11/17/2010 515.8 1.60 570.0 13.6

U3467 N38 Canal-1050' 11/10/10 1004 11/17/10 1116 11/17/2010 515.8 1.31 569.2 10.1

U3466 N39 Canal-1100' 11/10/10 1006 11/17/10 1118 11/17/2010 516.2 1.03 569.6 9.08



















U3465 S20 Canal-(-50') 11/10/10 1015 11/17/10 1045 11/17/2010 516.6 0.857 570.0 6.24

U3464 S21 Canal-0' 11/10/10 1017 11/17/10 1047 11/17/2010 515.8 0.917 569.2 5.89

U3463 S22 Canal-50' 11/10/10 1019 11/17/10 1049 11/17/2010 516.2 0.808 570.6 5.50

U3462 S23 Canal-100' 11/10/10 1021 11/17/10 1051 11/17/2010 516.2 0.783 569.4 5.6

U3461 S24 Canal-200' 11/10/10 1023 11/17/10 1053 11/17/2010 516.8 0.648 569.2 6.84

U3459 S25 Canal-250' 11/10/10 1025 11/17/10 1055 11/17/2010 515.8 0.625 569.6 18.9

U3459D S25 Canal-250' 11/10/10 1025 11/17/10 1055 11/17/2010 517.2 0.683 569.2 16.2

U3458 S26 Canal-300' 11/10/10 1027 11/17/10 1057 11/17/2010 514.8 0.898 570.2 21.7

U3457 S27 Canal-350' 11/10/10 1029 11/17/10 1059 11/17/2010 517.8 0.540 570.2 8.49

Page 13 of 19






U3456 S28 Canal-450' 11/10/10 1031 11/17/10 1101 11/17/2010 516.4 0.937 570.8 8.26

U3455 S29 Canal-500' 11/10/10 1033 11/17/10 1103 11/17/2010 515.0 47.6 569.4 20.1

U3455D S29 Canal-500' 11/10/10 1033 11/17/10 1103 11/17/2010 515.2 45.2 569.2 20.3

U3454 S30 Canal-550' 11/10/10 1035 11/17/10 1105 11/17/2010 515.2 12.0 569.6 4.13

U3453 S31 Canal-600' 11/10/10 1037 11/17/10 1107 11/17/2010 515.2 13.8 570.0 7.58

U3452 S32 Canal-700' 11/10/10 1039 11/17/10 1109 11/17/2010 515.4 5.26 ND

U3451 S33 Canal-750' 11/10/10 1041 11/17/10 1111 11/17/2010 515.5 5.02 569.8 373

U3451D S33 Canal-750' 11/10/10 1041 11/17/10 1111 11/17/2010 516.8 3.68 569.7 1,240

U3450 S34 Canal-800' 11/10/10 1043 11/17/10 1113 11/17/2010 515.6 2.86 569.0 13.7

U3449 S35 Canal-850' 11/10/10 1045 11/17/10 1115 11/17/2010 515.6 2.67 569.0 11.3

U3448 S36 Canal-950' 11/10/10 1047 11/17/10 1117 11/17/2010 515.2 1.95 568.0 7.85

U3447 S37 Canal-1000' 11/10/10 1049 11/17/10 1119 11/17/2010 515.4 2.62 568.2 8.73

U3446 S38 Canal-1050' 11/10/10 1051 11/17/10 1121 11/17/2010 514.6 1.97 569.0 5.68

U3445 S39 Canal-1100' 11/10/10 1053 11/17/10 1123 11/17/2010 515.6 1.17 570.4 5.38










U3902 N7 Shallow Well-700' 11/17/10 1235 12/1/10 1235 12/1/2010 ND 568.7 362













U4197 N20 Canal-(-50') 11/17/10 1040 12/1/10 1040 12/1/2010 ND ND

U3957 N21 Canal-0' 11/17/10 1042 12/1/10 1042 12/1/2010 ND ND

U3956 N22 Canal-50' 11/17/10 1044 12/1/10 1044 12/1/2010 ND ND

U3955 N23 Canal-100' 11/17/10 1046 12/1/10 1046 12/1/2010 ND ND

U3954 N24 Canal-200' 11/17/10 1048 12/1/10 1048 12/1/2010 ND ND

U3953 N25 Canal-250' 11/17/10 1050 12/1/10 1050 12/1/2010 ND 569.0 81.5

U3953D N25 Canal-250' 11/17/10 1050 12/1/10 1050 12/1/2010 ND 568.2 74.9

U3952 N26 Canal-300' 11/17/10 1052 12/1/10 1052 12/1/2010 ND 569.0 34.2

U3951 N27 Canal-350' 11/17/10 1054 12/1/10 1054 12/1/2010 ND 569.0 16.6

U3950 N28 Canal-450' 11/17/10 1056 12/1/10 1056 12/1/2010 515.6 10.4 568.4 7.29

U3949 N29 Canal-500' 11/17/10 1058 12/1/10 1058 12/1/2010 515.4 40.6 568.8 12.6

U3949D N29 Canal-500' 11/17/10 1058 12/1/10 1058 12/1/2010 515.4 84.1 568.7 18.2

U3948 N30 Canal-550' 11/17/10 1100 12/1/10 1100 12/1/2010 515.8 8.13 569.2 6.73

U3947 N31 Canal-600' 11/17/10 1102 12/1/10 1102 12/1/2010 516.2 3.01 ND

U3946 N32 Canal-700' 11/17/10 1104 12/1/10 1104 12/1/2010 516.1 2.95 569.3 54.5

U3945 N33 Canal-750' 11/17/10 1106 12/1/10 1106 12/1/2010 515.0 2.07 569.0 202

U3945D N33 Canal-750' 11/17/10 1106 12/1/10 1106 12/1/2010 516.5 1.61 568.8 160

U3944 N34 Canal-800' 11/17/10 1108 12/1/10 1108 12/1/2010 516.6 1.63 569.5 38.0

Page 14 of 19






U3943 N35 Canal-850' 11/17/10 1110 12/1/10 1110 12/1/2010 517.2 0.944 569.6 20.5

U3942 N36 Canal-950' 11/17/10 1112 12/1/10 1112 12/1/2010 516.8 0.700 569.0 11.4

U3941 N37 Canal-1000' 11/17/10 1114 12/1/10 1114 12/1/2010 516.6 0.673 569.0 9.77

U3939 N38 Canal-1050' 11/17/10 1116 12/1/10 1116 12/1/2010 516.8 1.32 569.0 14.6

U3938 N39 Canal-1100' 11/17/10 1118 12/1/10 1118 12/1/2010 515.8 0.990 569.6 10.5

















U3878 S18 Deep Well-750'-22' downgradient 11/17/10 1136 12/1/10 1136 12/1/2010 ND 568.6 12.5


U3937 S20 Canal-(-50') 11/17/10 1045 12/1/10 1045 12/1/2010 517.8 0.612 569.6 4.73

U3936 S21 Canal-0' 11/17/10 1047 12/1/10 1047 12/1/2010 516.2 0.610 569.4 6.92

U3935 S22 Canal-50' 11/17/10 1049 12/1/10 1049 12/1/2010 516.4 0.660 568.8 5.67

U3934 S23 Canal-100' 11/17/10 1051 12/1/10 1051 12/1/2010 516.2 0.768 569.4 6.37

U3933 S24 Canal-200' 11/17/10 1053 12/1/10 1053 12/1/2010 516.6 1.02 568.0 9.53

U3932 S25 Canal-250' 11/17/10 1055 12/1/10 1055 12/1/2010 517.6 1.58 569.3 98.4

U3932D S25 Canal-250' 11/17/10 1055 12/1/10 1055 12/1/2010 516.6 1.36 569.2 51.8

U3931 S26 Canal-300' 11/17/10 1057 12/1/10 1057 12/1/2010 517.2 0.831 569.4 15.8

U3930 S27 Canal-350' 11/17/10 1059 12/1/10 1059 12/1/2010 516.6 0.913 568.8 9.36

U3929 S28 Canal-450' 11/17/10 1101 12/1/10 1101 12/1/2010 515.2 1.29 569.6 8.80

U3928 S29 Canal-500' 11/17/10 1103 12/1/10 1103 12/1/2010 515.4 57.9 570.0 8.33

U3928D S29 Canal-500' 11/17/10 1103 12/1/10 1103 12/1/2010 515.3 181 ND

U3927 S30 Canal-550' 11/17/10 1105 12/1/10 1105 12/1/2010 515.2 9.34 570.0 5.90

U3926 S31 Canal-600' 11/17/10 1107 12/1/10 1107 12/1/2010 515.4 6.08 567.6 9.14

U3925 S32 Canal-700' 11/17/10 1109 12/1/10 1109 12/1/2010 515.6 2.84 ND

U3924 S33 Canal-750' 11/17/10 1111 12/1/10 1111 12/1/2010 516.5 1.52 569.2 209

U3924D S33 Canal-750' 11/17/10 1111 12/1/10 1111 12/1/2010 516.5 1.75 568.8 284

U3923 S34 Canal-800' 11/17/10 1113 12/1/10 1113 12/1/2010 515.6 2.36 568.8 13.5

U3922 S35 Canal-850' 11/17/10 1115 12/1/10 1115 12/1/2010 515.6 1.65 569.4 8.60

U3921 S36 Canal-950' 11/17/10 1117 12/1/10 1117 12/1/2010 516.8 1.10 570.6 6.09

U3919 S37 Canal-1000' 11/17/10 1119 12/1/10 1119 12/1/2010 516.2 1.32 570.0 6.55

U3918 S38 Canal-1050' 11/17/10 1121 12/1/10 1121 12/1/2010 515.6 1.26 569.0 8.28

U3917 S39 Canal-1100' 11/17/10 1123 12/1/10 1123 12/1/2010 515.6 1.41 568.8 8.69









Page 15 of 19







U4629 N7 Shallow Well-700' 12/1/10 1235 12/15/10 1235 12/15/2010 ND 567.2 3,330













U4686 N20 Canal-(-50') 12/1/10 1040 12/15/10 1040 12/15/2010 ND ND

U4685 N21 Canal-0' 12/1/10 1042 12/15/10 1042 12/15/2010 ND ND

U4684 N22 Canal-50' 12/1/10 1044 12/15/10 1044 12/15/2010 ND ND

U4683 N23 Canal-100' 12/1/10 1046 12/15/10 1046 12/15/2010 ND ND

U4682 N24 Canal-200' 12/1/10 1048 12/15/10 1048 12/15/2010 ND ND

U4681 N25 Canal-250' 12/1/10 1050 12/15/10 1050 12/15/2010 ND 569.2 33.3

U4681D N25 Canal-250' 12/1/10 1050 12/15/10 1050 12/15/2010 ND 569.0 46.3

U4679 N26 Canal-300' 12/1/10 1052 12/15/10 1052 12/15/2010 ND 569.6 8.27

U4678 N27 Canal-350' 12/1/10 1054 12/15/10 1054 12/15/2010 ND 567.0 6.14

U4677 N28 Canal-450' 12/1/10 1056 12/15/10 1056 12/15/2010 515.2 14.9 569.6 7.09

U4676 N29 Canal-500' 12/1/10 1058 12/15/10 1058 12/15/2010 515.5 180 ND

U4676D N29 Canal-500' 12/1/10 1058 12/15/10 1058 12/15/2010 515.5 160 ND

U4675 N30 Canal-550' 12/1/10 1100 12/15/10 1100 12/15/2010 514.8 3.01 570.6 3.74

U4674 N31 Canal-600' 12/1/10 1102 12/15/10 1102 12/15/2010 515.8 1.29 569.2 4.31

U4673 N32 Canal-700' 12/1/10 1104 12/15/10 1104 12/15/2010 515.6 0.705 569.0 16.3

U4672 N33 Canal-750' 12/1/10 1106 12/15/10 1106 12/15/2010 516.1 1.50 569.2 60.0

U4672D N33 Canal-750' 12/1/10 1106 12/15/10 1106 12/15/2010 517.0 1.40 569.0 62.2

U4671 N34 Canal-800' 12/1/10 1108 12/15/10 1108 12/15/2010 516.2 0.509 570.6 15.1

U4670 N35 Canal-850' 12/1/10 1110 12/15/10 1110 12/15/2010 514.6 0.646 569.4 11.0

U4669 N36 Canal-950' 12/1/10 1112 12/15/10 1112 12/15/2010 515.8 0.592 568.2 7.46

U4668 N37 Canal-1000' 12/1/10 1114 12/15/10 1114 12/15/2010 ND 568.4 4.92

U4667 N38 Canal-1050' 12/1/10 1116 12/15/10 1116 12/15/2010 ND 568.6 7.83

U4666 N39 Canal-1100' 12/1/10 1118 12/15/10 1118 12/15/2010 ND 568.8 3.52

















U4606 S18 Deep Well-750'-22' downgradient 12/1/10 1136 12/15/10 1136 12/15/2010 ND 568.2 21.0

Page 16 of 19







U4665 S20 Canal-(-50') 12/1/10 1045 12/15/10 1045 12/15/2010 ND ND

U4664 S21 Canal-0' 12/1/10 1047 12/15/10 1047 12/15/2010 ND ND

U4663 S22 Canal-50' 12/1/10 1049 12/15/10 1049 12/15/2010 ND ND

U4662 S23 Canal-100' 12/1/10 1051 12/15/10 1051 12/15/2010 ND ND

U4661 S24 Canal-200' 12/1/10 1053 12/15/10 1053 12/15/2010 ND ND

U4659 S25 Canal-250' 12/1/10 1055 12/15/10 1055 12/15/2010 ND 568.6 8.68

U4659D S25 Canal-250' 12/1/10 1055 12/15/10 1055 12/15/2010 ND 571.0 8.32

U4658 S26 Canal-300' 12/1/10 1057 12/15/10 1057 12/15/2010 ND 570.6 10.2

U4657 S27 Canal-350' 12/1/10 1059 12/15/10 1059 12/15/2010 ND ND

U4656 S28 Canal-450' 12/1/10 1101 12/15/10 1101 12/15/2010 ND ND

U4655 S29 Canal-500' 12/1/10 1103 12/15/10 1103 12/15/2010 515.8 54.8 ND

U4655D S29 Canal-500' 12/1/10 1103 12/15/10 1103 12/15/2010 515.2 40.4 ND

U4654 S30 Canal-550' 12/1/10 1105 12/15/10 1105 12/15/2010 515.6 3.66 ND

U4653 S31 Canal-600' 12/1/10 1107 12/15/10 1107 12/15/2010 515.8 3.54 ND

U4652 S32 Canal-700' 12/1/10 1109 12/15/10 1109 12/15/2010 516.2 1.10 ND

U4651 S33 Canal-750' 12/1/10 1111 12/15/10 1111 12/15/2010 516.2 1.19 568.8 219

U4651D S33 Canal-750' 12/1/10 1111 12/15/10 1111 12/15/2010 517.0 0.746 568.6 149

U4650 S34 Canal-800' 12/1/10 1113 12/15/10 1113 12/15/2010 517.2 0.611 ND

U4649 S35 Canal-850' 12/1/10 1115 12/15/10 1115 12/15/2010 517.8 0.624 ND

U4648 S36 Canal-950' 12/1/10 1117 12/15/10 1117 12/15/2010 515.2 0.525 ND

U4647 S37 Canal-1000' 12/1/10 1119 12/15/10 1119 12/15/2010 516.2 0.498 ND

U4646 S38 Canal-1050' 12/1/10 1121 12/15/10 1121 12/15/2010 517.6 0.607 ND

U4645 S39 Canal-1100' 12/1/10 1123 12/15/10 1123 12/15/2010 516.2 0.482 ND

















U5001 N14 Deep well-250'-22' downgradient 12/15/10 1259 12/29/10 1259 12/29/2010 ND 569.8 1,230


U4994 N16 Deep Well-500'-22' downgradient 12/15/10 1250 12/29/10 1250 12/29/2010 515.0 51.4 ND


U4988 N18 Deep well-750'-22' downgradient 12/15/10 1237 12/29/10 1237 12/29/2010 ND 569.6 205


U5047 N20 Canal-(-50') 12/15/10 1040 12/29/10 1040 12/29/2010 ND ND

U5046 N21 Canal-0' 12/15/10 1042 12/29/10 1042 12/29/2010 ND ND

U5045 N22 Canal-50' 12/15/10 1044 12/29/10 1044 12/29/2010 ND ND

U5044 N23 Canal-100' 12/15/10 1046 12/29/10 1046 12/29/2010 ND ND

U5043 N24 Canal-200' 12/15/10 1048 12/29/10 1048 12/29/2010 ND ND

U5042 N25 Canal-250' 12/15/10 1050 12/29/10 1050 12/29/2010 ND 570.0 15.6

U5042D N25 Canal-250' 12/15/10 1050 12/29/10 1050 12/29/2010 ND 569.6 16.3

U5041 N26 Canal-300' 12/15/10 1052 12/29/10 1052 12/29/2010 ND 569.2 12.6

Page 17 of 19






U5039 N27 Canal-350' 12/15/10 1054 12/29/10 1054 12/29/2010 ND 569.6 7.52

U5038 N28 Canal-450' 12/15/10 1056 12/29/10 1056 12/29/2010 516.2 2.08 569.4 7.32

U5037 N29 Canal-500' 12/15/10 1058 12/29/10 1058 12/29/2010 515.2 25.5 ND

U5037D N29 Canal-500' 12/15/10 1058 12/29/10 1058 12/29/2010 515.5 35.5 ND

U5036 N30 Canal-550' 12/15/10 1100 12/29/10 1100 12/29/2010 515.8 1.85 ND

U5035 N31 Canal-600' 12/15/10 1102 12/29/10 1102 12/29/2010 ND ND

U5034 N32 Canal-700' 12/15/10 1104 12/29/10 1104 12/29/2010 516.8 0.544 569.2 11.0

U5033 N33 Canal-750' 12/15/10 1106 12/29/10 1106 12/29/2010 ND 569.2 38.7

U5033D N33 Canal-750' 12/15/10 1106 12/29/10 1106 12/29/2010 ND 569.6 40.7

U5032 N34 Canal-800' 12/15/10 1108 12/29/10 1108 12/29/2010 ND 569.6 21.4

U5031 N35 Canal-850' 12/15/10 1110 12/29/10 1110 12/29/2010 ND 569.6 15.1

U5030 N36 Canal-950' 12/15/10 1112 12/29/10 1112 12/29/2010 ND 568.6 11.1

U5029 N37 Canal-1000' 12/15/10 1114 12/29/10 1114 12/29/2010 ND 569.4 7.09

U5028 N38 Canal-1050' 12/15/10 1116 12/29/10 1116 12/29/2010 ND 569.2 10.2

U5027 N39 Canal-1100' 12/15/10 1118 12/29/10 1118 12/29/2010 ND ND















U4973 S16 Deep Well-500'-22' downgradient 12/15/10 1151 12/29/10 1151 12/29/2010 515.4 14.4 ND

U4974 S17 Deep well-500'-39' downgradient 12/15/10 1153 12/29/10 1153 12/29/2010 515.8 1.24 ND

U4967 S18 Deep Well-750'-22' downgradient 12/15/10 1136 12/29/10 1136 12/29/2010 ND 570.6 279


U5026 S20 Canal-(-50') 12/15/10 1045 12/29/10 1045 12/29/2010 ND ND

U5025 S21 Canal-0' 12/15/10 1047 12/29/10 1047 12/29/2010 ND ND

U5024 S22 Canal-50' 12/15/10 1049 12/29/10 1049 12/29/2010 ND ND

U5023 S23 Canal-100' 12/15/10 1051 12/29/10 1051 12/29/2010 ND ND

U5022 S24 Canal-200' 12/15/10 1053 12/29/10 1053 12/29/2010 ND ND

U5021 S25 Canal-250' 12/15/10 1055 12/29/10 1055 12/29/2010 ND 570.0 10.7

U5021D S25 Canal-250' 12/15/10 1055 12/29/10 1055 12/29/2010 ND 568.2 13.5

U5019 S26 Canal-300' 12/15/10 1057 12/29/10 1057 12/29/2010 ND 570.0 8.02

U5018 S27 Canal-350' 12/15/10 1059 12/29/10 1059 12/29/2010 ND ND

U5017 S28 Canal-450' 12/15/10 1101 12/29/10 1101 12/29/2010 ND ND

U5016 S29 Canal-500' 12/15/10 1103 12/29/10 1103 12/29/2010 515.4 7.31 ND

U5016D S29 Canal-500' 12/15/10 1103 12/29/10 1103 12/29/2010 514.8 8.01 ND

U5015 S30 Canal-550' 12/15/10 1105 12/29/10 1105 12/29/2010 515.6 3.34 ND

U5014 S31 Canal-600' 12/15/10 1107 12/29/10 1107 12/29/2010 514.8 2.50 ND

U5013 S32 Canal-700' 12/15/10 1109 12/29/10 1109 12/29/2010 515.6 1.16 ND

U5012 S33 Canal-750' 12/15/10 1111 12/29/10 1111 12/29/2010 517.6 0.822 569.8 22.3

U5012D S33 Canal-750' 12/15/10 1111 12/29/10 1111 12/29/2010 516.2 0.796 569.0 23.2

U5011 S34 Canal-800' 12/15/10 1113 12/29/10 1113 12/29/2010 516.8 0.855 569.6 5.29

U5010 S35 Canal-850' 12/15/10 1115 12/29/10 1115 12/29/2010 ND ND

U5009 S36 Canal-950' 12/15/10 1117 12/29/10 1117 12/29/2010 ND ND

U5008 S37 Canal-1000' 12/15/10 1119 12/29/10 1119 12/29/2010 ND ND

Page 18 of 19






U5007 S38 Canal-1050' 12/15/10 1121 12/29/10 1121 12/29/2010 ND ND

U5006 S39 Canal-1100' 12/15/10 1123 12/29/10 1123 12/29/2010 ND ND



















U6119 N16 Deep Well-500'-22' downgradient 12/29/10 1250 2/9/11 1250 2/9/2011 515.5 194 ND


















U6098 S16 Deep Well-500'-22' downgradient 12/29/10 1151 2/9/11 1151 2/9/2011 515.3 43.3 ND

U6099 S17 Deep well-500'-39' downgradient 12/29/10 1153 2/9/11 1153 2/9/2011 515.8 6.25 ND

U6092 S18 Deep Well-750'-22' downgradient 12/29/10 1136 2/9/11 1136 2/9/2011 ND 570.0 1,450





Page 19 of 19

Appendix 3

Ardaman & Associates (2011)

L-31N Seepage Barrier Investigation, Miami-Dade County, Florida

Cone penetrometer testing results

Barrier wall borings notes

CPT LocationRefusal Depth

Disturbed Depth

Disturbed Thickness

Open Hole Depth

Depth to Water

1 150 16.9 14.8 2.1 7.5 4.32 250 18.2 13.5 4.7 13.5 4.33 350 18.0 12.2 5.8 10 3.64 450 13.7 13.0 0.7 2 no5 490 17.2 13.0 4.2 2 no6 495 17.4 13.0 4.4 13.5 3.57 500 18.0 15.0 3.0 13.5 3.58 505 17.1 13.0 4.1 12.5 3.59 510 16.8 14.0 2.8 14.5 3.5

10 550 16.9 12.5 4.4 collapsed no11 650 16.9 12.8 4.1 13.5 3.212 750 17.6 17.0 0.6 2.5 no13 850 12.5 10.5 2.0 not found no

Average 16.7 13.4 3.3

Distances from south end of barrierDisturbed: q>30

3/9/2011 4/7/2011

L-31N Barrier Testing

4/4/2011

L-31 Seepage Wall Borings

Ardaman & Associates – Miami Office Manager - Evelio Horta / Driller - George Jeff Rosenfeld – MFL and Les Bromwell – BCI Two borings – sampled using split spoons and manual-operated hammer until 15’ deep (when limestone pebbles/ sand size material encountered) and then switched to automated hammer and recorded blow counts Borings drilled adjacent to Ardaman CPT holes: CPT3 - 350’ from south end of wall (still open to depth of 11’) CPT showed elevated resistance starting at 12.5’ and refusal at 18’) CPT13 - 850’ from south end of wall (still open to depth of 12’) CPT showed elevated resistance starting at 10.5’ and refusal at 12.5’) Bottom of trench at approximately 18-20’ and Q4 hard layer at approximately 14-16’ Trench approximately 28” wide and both CPT and borings within wall material

CPT-3 0-8’ full recovery – full bentonite material cores – broken material on photo due to removal from split spoon – depth to water at approximately 3’ – light grey to 3’ darker brown from 3’ to 8’ 8-10’ approximate 50% recovery - upper section full formed core as above / lower section material was more wet not as formed. 10-12’ 0% recovery – not sure why – split spoon had catcher so it would seem that material was fluid and drained from spoon. Lower probability that material was fine sand that was not retained in spoon. 12-15’ Driller recommended 3’ penetration in 2’ spoon to try to compact material so it would be retained in spoon. Full spoon recovery. 12-14.5 (?) – formed bentonite material core but wetter than above – also noticed fine grained material within core. From 14.5-15’ (?) – limestone pebbles 15-17’ “fill material” from milling trench? – some formed core in spoon (due to wet condition vs. presence of slurry?). Seemed to be more related to being wet – some but not a lot of slurry material present (Blow counts – 3,3,3,3) 17-18.5 “fill material” as above (Blow counts – 5,5,6) 18.5 – 19’ “fill material” as above (Blow counts – 46) - refusal at 19’ Material consolidated within portion of core box Row 3 0-8’ Row 4 8-15’ Row 5 15-19’ Samples also collected in glass jars Les took jars contained sandy material from 15-17 and 17-18.5 for possible permeability testing by forming material within test vessel.

CPT-13 0-10’ full recovery – full bentonite material cores – broken material on photo due to removal from split spoon – depth to water at approximately 3’ – light grey to 3’ darker brown from 3’ to 10’. Could see fill material within bentonite from 7-10’ and feel sand within the bentonite. 10-13 missing zone in CPT-3. Did 3’ penetration in 2’ spoon to try to compact material so it would be retained in spoon. Full spoon recovery – wetter material from 10-11’(?) – more cohesive 11-13’(?). 13-15 13-14’ wet material (not as formed) 14-14.5’ formed core but limestone pebbles within bentonite “shell” 14.5-15’ limestone pebbles (0.5 – 1”) 15-17 25% recovery – limestone pebbles as above –some wet slurry material (Blow counts – 3,3,3,4) so there was material - just not recovered 17-19 full recovery – 17-18 limestone pebbles as above with some slurry material

18-19 clean limestone pebbles and fine material – no slurry (Blow counts – 5,7,8,8)

19-20 limestone pebbles – no slurry (Blow counts – 8,16) Material kept in core box – no fine grained material (as in CPT-3) to test

Documents

L-31N Seepage M anagement Field Test Seepage Management...L-31N Seepage Management Field Test July 2011 9 Groundwater stage data were collected periodically in the 6 shallow upgradient