5.5. SR 06-05-1995ITEM NO. 5.5
of _;~'+~ MEMORANDUM
R1Ver TO: Mayor and City Council
FROM: Stephen Rohlf, Building and
Zoning Administrator
DATE: April 28, 1995 ~J~
SUBJECT: Phase 2 Environmental Assessment
at Custom Motor's Site
Attached to this memo is a memorandum from John Lichter of B.A. Leisch
and Associates, estimating the cost of completing a phase lI environmental
assessment at the Custom Motor's site. After the additional testing outlined
in Mr. Lichter's memo, an estimate of the clean-up cost at this site can be
derived.
Some phase II type activities (soil borings, water test) have taken place at the
Custom Motors site in the past. These activities were funded by the city
• through the landfill surcharge fund. Staff suggests the complete phase II be
funded from the same source.
I will be at Monday night's meeting to address past testing activities at the
Custom Motors site and proposed future activities. If you have questions
regarding this issue, please feel free to contact me.
•
ce:4.28lstever
13065 Orono Parkway • P.O. Box 490 • Elk River, MN 55330 • (612) 441-7420 • Fax: (612) 441-7425
APR y Q 1995
•
B.A. LIESCH ASSOCIATES, INC. 1340015TH AVE. N. MINNEAPOLIS, MN 55441 612/559-1423 FAX: 612/559-2202
MEMORANDUM
TO: STEVE ROHLF, CITY OF ELK RIVER
FROM: JOHN LIGHTER, B.A. LIESCH ASSOCIATES, INC. A~
DATE: APRIL 18, 1995
RE: CUSTOM MOTORS, PROPOSAL FOR ADDITIONAL SUB-
SURFACE ASSESSMENT WORK
Assessment activities to date have consisted of reconnaissance soil sampling and testing
of off-site wells on Property north and anticipated downgradient of the Custom Motors
site. Presently, environmental impacts appear limited to surficial soils in high traffic
areas, including, but not limited to, the engine and transmission storage area, vehicle
processing areas and traffic pathways. Soils in the vicinity of typical automobile storage
areas do not appear to be problematic, as previous field screening and analytical testing
work did not indicate parameters above detection limits, although some minor staining
was observed in these areas. Also, testing of off-site wells did not find any evidence of
volatile organic compounds (VOCs), although lead was present slightly above drinking
water standards.
An overview of data indicates additional soil sampling and analytical testing is required
to further define the extent and magnitude of impacts, in particular near the processing
garage and engine/transmission storage area. Additionally, TCLP analyses may be
required on soils with high lead levels to evaluate mitigation and disposal options to
determine if the soils would be regulated as hazardous material. There also remains the
possibility of localized groundwater contamination suggested by data from the
engine/transmission storage area, permeability of soils and anticipated shallow depth for
groundwater. Based upon these concerns, Liesch has developed the following scope of
work to address these issues.
Liesch proposes to spend one field day advancing a series of shallow soil borings (Figure
1) on the Properly. Soil borings will be advanced to the water table which is anticipated
to occur at a depth of approximately 10 to 15 feet below grade. Soil samples will be
• collected at five foot intervals during drilling for soil characterization and profiling needs
and groundwater samples will be collected from selected boreholes for groundwater
quality data. All drilling will be completed by a truck mounted drill rig utilizing hollow
Page 2
April 18, 1995
• stem auger drilling methods. Based upon drilling conditions it seems reasonable to
assume 10 to 15 shallow soil borings can be completed in one field day. Upon
completion of all drilling and sampling, the boreholes will be abandoned pursuant to
MDH well codes.
Representative soil/groundwater samples from the boreholes will be selected for
laboratory confirmation analysis based upon soil characterization data including visual
staining, odors and jar headspace results. 5oi1 samples are proposed to undergo diesel
range organics (DRO) and lead analysis while groundwater samples are proposed to be
analyzed for VOCs and lead. A total of eight soil and six groundwater samples are
estimated. Some boreholes may require no analysis to be performed while other
boreholes may require two samples in order to characterize impacts at depth.
Groundwater samples will be collected in such a manner ±a assess water quality for the
entire property. As previously mentioned, a representative soil sample is also proposed
to undergo TCLP analysis for hazardous material determination. Remaining soil samples
will be frozen under proper chain of custody documentation for future analysis, if
necessary.
Upon receipt of laboratory results and compilation of data a draft summary report will
be prepared for your review prior to issuance of the final copy. The report will include
• soil boring data, field observations, chemical results, and a discussion of findings with
recommendations for additional work, if necessary.
Steve, an opinion of expected costs to complete the work outlined above is attached for
your use. Should you have any questions or concerns, please do not hesitate to call.
Thank you.
maw:memo41895.wp/GO
•
B.A. LIESCH ASSOCIATES, INC. 13400 15TH AVENUE NORTH MINNEAPOLIS, MINNESOTA 55441
OPINION OF EXPECTED COSTS
CUSTOM MOTORS, ELK RIVER
•
u
•
Task Princ. P.M. Geologist Sec.
1. Environmental coordination, 2 1
administration, site safety
2. Site supervision of drilling, 1 10
soil and groundwater
sampling, site mapping
3. Data analysis, compilation 1 4 1
of data, drafting
4. Report prepazation 1 4 1 1
TOTALS 1 8 16 2
Professional Fees:
Principal 1 hour @ $109/hour $109
Project Manager 8 hours ~ $77/hour $616
Geologist 16 hours Q $65/hour $1,040
Secretarial 2 hours @ $35/hour
TOTAL PROFESSIONAL FEES: $1,835
Direct Costs:
1. Drilling, 13 soil borings to 15 feet, 5 foot
split spoon sampling intervals $1,750-2,000
2. Laboratory Fees
A. 8 soil samples for DRO and lead @ $75/sample $600
B. 6 water samples for VOCs and lead @ $150/sample $1,200
C. 1 soil sample for TCLP analysis ~ $150/sample $150
3. OVM rental - $100/day for 1 day $100
4. Miscellaneous items (mileage, copy costs, .field supplies) 100
TOTAL DIRECT COSTS: $3,900-4,150
TOTAL PROFESSIONAL FEES AND DIRECT COSTS: $5,735-5,985
maw:memo41895.wp/GO
B.A.LIESCHASSDCIATES,INC. 1340015TH AVENUENDRTH MINNEAPOLIS, MINNESOTA 55441
HIGHWAY 10 FRONTAGE ROAD
x x ---+~ GATE
\ ~
*' GRAVEL
SHED
•
EXPLANATION
B 1 O BORING ;
* .PROPOSED SOIL BORING /
TEMPORARY PIEZOMETER
.-~_ I
-- I
._. ,
-- B_4
°-
_~ ~
-~1
_^ I
~- I
~"-- I
^_ I
____ I
GARAGE
B-~ ° U
OFFICE I
-..~ ` --
~ 1
* BARN \ *I .___.
I
--II----~I~~
~ - - ~. ~)
-~ ~ - i-
-- _. ~ I _ - ~ I -- .__._
" -- 1
1-.-' 1-_-_ ~
B-3 I
-- I
I -- ~ - ~ ~ _
-I ~
-- 1 ~_ ~' ~ _..
^-~ -'
1
,. ~ --~
t~'.~ ._ ~ .- 1
`~ I
~ _'_' ----- ~ I --' ---- ~
I I
~ ~I I-~~
~ V~_
~-
* ~~. _.
j~ j i ~ i ~ ~ i ~~ ~ ~ ~ ~ ~ i
x-Syr--~ ;-~,~
B-s B-s
N
NOT TO SCALE
SKETCH DRAWING
SALVAGE (TYP)
.PROPERTY Bt~'ARY
ENGINE/TRANSMISSION
STORAG
ROADWAY (TYP)
GRAVEL