2015-29126 Reso RESOLUTION NO. 2015-29126
A RESOLUTION OF THE MAYOR AND CITY COMMISSION OF THE CITY OF MIAMI BEACH,
FLORIDA, APPROVING AND AUTHORIZING THE MAYOR AND CITY CLERK TO EXECUTE
CHANGE ORDER NO. 5 TO THE DESIGN-BUILD AGREEMENT WITH BERGERON LAND
DEVELOPMENT, INC., DATED APRIL 30, 2014 (THE AGREEMENT) IN THE AMOUNT OF
$2,000,000,FOR WORK RELATED TO THE DISPOSAL OF SOILS FROM THE WEST AVENUE
NEIGHBORHOOD PROJECT; PROVIDE RENTAL PUMPS TO REDUCE FLOODING;AND TO
ESTABLISH STREET LIGHTING STANDARDS FOR THE CITY.
WHEREAS, at its February 12,2014 meeting,the City Commission approved and authorized the City
Manager to procure the necessary emergency design and construction services, pursuant to a negotiated
design-build contract for the remaining stormwater pump stations for 6th, 10th and 14th Streets,with Bergeron
Land Development, Inc. (Bergeron), a Florida Department of Transportation(FDOT)contractor for the Alton
Road Improvements Project, in an amount not to exceed $11,250,000 (the Agreement); and
WHEREAS,at its June 11,2014 meeting,the City Commission adopted Resolution No.2014-28636,
approving Change Order No. 1 in the amount of $1,100,000, to increase the scope of the Agreement to
include services related to a prior contract with Ebsary Construction, for the City's 10th Street seawall and
street-end project; and
WHEREAS, at its September 30,2014 meeting,the City Commission adopted Resolution No.2014-
28768, approving Change Order No. 2, in the amount of $3,006,544, for the completion of roadway
improvements along 6th Street and West Avenue, between 5th and 6th Streets, and a new seawall at 14
Street; and
WHEREAS, at its October 29, 2014 meeting, the City Commission adopted Resolution No. 2014-
28818, approving Change Order No. 3, in the amount of $15,670,000, for the completion of roadway
improvements along West Avenue between 6th and 8th Streets; and 10th, 14th, and 17th Streets,west of Alton
Road; said Change Order providing for additional scope including, in particular, additional stormwater and
drainage improvements, a new pump station, and related above-ground streetscape improvements; and
WHEREAS,on April 15,2015,the Mayor and City Commission adopted Resolution No.2015-28991,
approving Change Order No. 4 to the Agreement, in the amount of $1,215,152, for the design and
construction of a seawall at the 17th Street pump station and Alton Court; underground utilities work; and for
raising the roadway at Alton Court to meet the proposed 17th Street elevation; and
WHEREAS, the Public Works Department requested an additional scope of work to the Agreement
for the (1) removal of all arsenic-contaminated soils, as requested by Miami-Dade County, for the West
Avenue/Bridge Project; (2)to provide multiple temporary pumps in the West Avenue Neighborhood area to
address flooding until permanent pumps are constructed; (3) to assist the City in developing lighting
standards.
NOW,THEREFORE,BE IT DULY RESOLVED BY THE MAYOR AND THE CITY COMMISSION OF
THE CITY OF MIAMI BEACH,FLORIDA,that the Mayor and City Commission hereby approve and authorize
the Mayor and City Clerk to execute Change Order No. 5 to the Agreement with Bergeron Land Development,
Inc., dated April 30, 2014 (the Agreement), in the amount of$2,000,000, for work related to the disposal of
arsenic soils from the West Avenue Neighborhood Project; provide rental pumps to reduce flooding; and to
establish street lighting standards for the City.
PASSED AND ADOPTED this a day of Glf t€h'1 A.r 2015
ATTEST: °'�t�1 .. /'�
'� � �,� %%' 'i APPROVED AS TO
•
_ FORM & LANGUAGE
•
les ' CORP ORATED' P hilip -vines- &FOR E ELUTION
Rafael' ranado, City Clerk
14,74 .7" .. ...A cf.) / , "-L04""
hp�c�l' 2 G� .��''� City Attorney Date
T:\AGENDA\2015\September\PUBLIC WORKS\Ber.'l ravrc ..oc
COMMISSION ITEM SUMMARY
Condensed Title:
A Resolution Of The Mayor And City Commission Of The City Of Miami Beach, Florida, Approving And
Authorizing The Mayor And City Clerk To Execute Change Order No. 5 To The Design-Build Agreement With
Bergeron Land Development, Inc., Dated April 30, 2014 (The Agreement), Related To The Disposal Of Soils
From The West Avenue Neighborhood Project, Provide Rental Generators To Reduce Flooding and Street Light
Design Standard Development, Increasing The Cost Of The Agreement By$2,000,000.
Key Intended Outcome Supported:
Ensure value and timely delivery of quality Capital Projects.
Supporting Data (Surveys, Environmental Scan, etc.): N/A
Item Summary/Recommendation:
At its February 12, 2014 meeting, the City Commission approved and authorized the City Manager to procure
the necessary emergency design and construction services, pursuant to a negotiated design-build contract for
the remaining stormwater pump stations for 6th, 10th and 14th Streets, with Bergeron Land Development, Inc.
(Bergeron), a Florida Department of Transportation (FDOT) contractor for the Alton Road Improvements Project,
in an amount not to exceed $11,250,000; and
As a continuation of the initiative to protect residents from tidal flooding, the Public Works Department requested
an additional scope of work to the existing Bergeron contract for an additional scope of work to include the
removal of soils with elevated arsenic levels, provide rental generators to reduce flooding and in establishing
street lighting standard.
CURRENT STATUS
During the West Avenue Construction Improvement Project, it was determined by Miami-Dade County that
Miami Beach soils have naturally occurring arsenic and soils removed from the site shall not be disposed as
contaminated soil. The cost of permitting, testing and disposal has been estimated at $1,544,220, not included
in the original contract.
Public Works is submitting a request to execute Change Order No. 5, for additional scope of services to be
performed by Bergeron for permitting, testing and disposal of all soils from the site, due to naturally occurring
arsenic.
In addition, in order to reduce street flooding, the City requested Bergeron to local rental pumps to pump storm
water to the bay. The estimated cost for this activity is$437,180.00.
Bergeron's consultant who performed the lighting design of West Avenue will also assist the City in developing
lighting standards for this and all future projects. Completing the lighting study of the West Avenue
Neighborhood will create the new standardization which will be incorporated into the Public Works Manual for
street lighting in the City. The estimated cost for this activity is$18,600.
Subject to the 6th Capital Budget Amendment being approved on September 2, 2016, R74
THE ADMINISTRATION RECOMMENDS ADOPTING THE RESOLUTION
Advisory Board Recommendation:
I N/A
Financial Information:
Source of Amount Account
•
Funds: 1 $434,833 303-2717-069357
4 $1,565,167 Storm Water Bond
OBPI Total $2,000,000
Financial Impact Summary:
City Clerk's Office Legislative Tracking:
Eric T. Carpenter,ext.6012
Sign-Offs:
Department Director Assistant Manager City M er
ETC MT JLM
T:WGENDA\2015\September\PUBLIC WORKS\Bergeron CO No.5-Summary.docx
m MIAMI BEACH AGENDAOATE Agenda Item 0�
Date 4-2-��
.- MIAMI BEACH
City of Miami Beach, 1700 Convention Center Drive,Miami Beach, Florida 33139,www.miamibeachfl.gov
CO MISSIO /1
TO: Mayor Philip Levine and Members of ,i e City Commssion
FROM Jimmy L. Morales, City Manager
I' it
DATE: September 2, 2015
SUBJECT: A RESOLUTION OF THE MAYO'. AND CITY COMMISSION OF THE CITY OF
MIAMI BEACH, FLORIDA, APPROVING AND AUTHORIZING THE MAYOR AND
CITY CLERK TO EXECUTE CHANGE ORDER NO. 5 TO THE DESIGN-BUILD
AGREEMENT WITH BERGERON LAND DEVELOPMENT, INC., DATED APRIL 30,
2014 (THE AGREEMENT), RELATED TO THE DISPOSAL OF SOILS FROM THE
WEST AVENUE NEIGHBORHOOD PROJECT, PROVIDE RENTAL GENERATORS
TO REDUCE FLOODING AND ESTABLISH STREET LIGHTING STANDARDS FOR
THE CITY, FURTHER INCREASING THE COST OF THE AGREEMENT BY
$2,000,000.
ADMINISTRATION RECOMMENDATION
The Administration recommends adopting the Resolution.
FUNDING
FY 2014/15
Amount Account Number
$ 434,833 303-2717-069357—Seawall Biscayne Bay Streetend
$1,565,167 Storm Water Bonds
$2,000,000 Total
BACKGROUND
At its February 12, 2014 meeting, the City Commission approved and authorized the City
Manager to procure the necessary emergency design and construction services, pursuant to a
negotiated design-build contract for the remaining stormwater pump stations for 6th, 10th and
14t Streets, with Bergeron Land Development, Inc. (Bergeron), a Florida Department of
Transportation (FDOT) contractor for the Alton Road Improvements Project, in an amount not to
exceed $11,250,000; and
As a continuation of the initiative to protect residents from tidal flooding, the Public Works
Department requested an additional scope of work to the existing Bergeron to include the
removal of all arsenic-contaminated soils as requested by Miami-Dade County, to construct the
extension of the West Avenue/Collins Canal and assist the City in establishing street lighting
Commission Memorandum—Bergeron pump stations Improvements- Change Order No. 5
Page 2 of 3
standard.
CURRENT STATUS
During the West Avenue Construction Improject project, it was determined by Miami-Dade
County that all Miami Beach soils have naturally occurring arsenic and all soils removed from
the site shall be disposed as contaminated soil. The cost of permitting, testing and disposal
estimated at $1,544,220 and was not included in the original contract.
Public Works is submitting a request to execute Change Order No. 5, for additional scope of
services to be performed by Bergeron for permitting, testing and disposal of all soils from the
site, due to naturally occurring arsenic.
In addition, in order to reduce street flooding, the City requested Bergeron to local rental pumps
to pump storm water to the bay. The estimated cost for this activity is $437,180.00.
Bergeron's consultant who performed the lighting design of West Avenue will also assist the
City in developing lighting standards for this and all future projects. Completing the lighting
study of the West Avenue Neighborhood will create the new standardization which will be
incorporated into the Public Works Manual for street lighting in the City. The estimated cost for
this activity is $18,600.
CONCLUSION
The Administration recommends adopting the Resolution.
JLM/MT/ETC/BAM/FRS
T:WGENDA\2015\September\PUBLIC WORKS\Bergeron CO No.5-MEMO.docx
Attachment
Agenda Item R70
Estimated Contaminated Cost
Contamination Summary
Cost for Contamination Testing on 17th, 14th, 10th and 6th $22,930.00
Estimated Cost for Haul on 17th & West Ave (Lincoln to 17th) $585,060.00
Estimated Cost for Haul on 14th $346,292.07
Estimated Cost for Haul on 10th $94,401.83
Estimated Cost for Haul on 6th & West Ave (5th to 8th) $495,535.67
Estimated Total $1,544,219.57
Agenda Item R7 0
Date Q-L-L
6th Street
Estimated Muck Layer from Geo Reports approximately 8'
Structure&Pipe Runs Estimated Area Estimated I Estimated Estimated I Estimated Muck I Estimated Muck Estimated Muck
(SF) Depth(FT) Excavation(CF) Excavation(CY) (CF) (CY) I Layer Thickness(ft)
S1-100 100 12 1200 44.4444444 800 29.6296296 8
51-110 100 12.51 1251 46.33333329 800 29.6296296 8
51-120 100 11.79 1179 43.66666662 800 29.6296296 8
S1-130 100 11.15 1115 41.29629626 800 29.6296296 8
S1-131 36 5 180 6.66666666 288 10.66666666 8
51-132 36 5 180 6.66666666 288 10.66666666 8
51-133 36 5 180 6.66666666 288 10.66666666 8
S1-134 36 5 180 6.66666666 288 10.66666666 8
S1-135 36 5 180 6.66666666 288 10.66666666 8
S1-140 100 12.56 1256 46.51851847 800 29.6296296 8
51-141 100 12 1200 44.4444444 800 29.6296296 8
51-150 100 13.31 1331 49.29629625 800 29.6296296 8
S1-151 100 10 1000 37.037037 800 29.6296296 8
51-160 100 11.74 1174 43.48148144 800 29.6296296 8
S1-161 100 10 1000 37.037037 800 29.6296296 8
51-170 100 12 1200 44.4444444 800 29.6296296 8
51-171 100 10 1000 37.037037 800 29.6296296 8
51-180 100 10 1000 37.037037 800 29.6296296 8
51-182 100 12 1200 44.4444444 800 29.6296296 8
S6-1 195 9.4 1833 67.88888882 1560 57.77777772 8
S6-2 121 13 1573 58.2592592 968 35.85185182 8
S6-3 168 14 2352 87.11111102 1344 49.77777773 8
S6-4 100 10 1000 37.037037 800 29.6296296 8
56-5 100 20 2000 74.074074 800 29.6296296 8
S6-6 143 12 1716 63.55555549 1144 42.37037033 8
S6-7 143 13.2 1887.6 69.91111104 1144 42.37037033 8
56-8 375 19.8 7425 274.9999997 3000 111.111111 8
56-10 351 14.6 5124.6 189.7999998 2808 103.9999999 8
S6-11 100 18.6 1860 68.88888882 800 29.6296296 8
48"51-100 to 51-110 708 10 7080 262.222222 5664 209.7777776 8
48"51-110 to 51-120 702 10 7020 259.9999997 5616 207.9999998 8
48"51-120 to 51-130 1356 9 12204 451.9999995 10848 401.7777774 8
12"51-130 to 51-131 105 6 630 23.33333331 840 31.11111108 8
12"51-131 to 51-132 110 6 660 24.44444442 880 32.59259256 8
12"S1-132 to 51-133 110 6 660 24.44444442 880 32.59259256 8
12"51-133 to 51-134 110 6 660 24.44444442 880 32.59259256 8
12"51-134 to 51-135 110 6 660 24.44444442 880 32.59259256 8
48"51-140 to 51-142 360 10 3600 133.3333332 2880 106.6666666 8
48"51-142 to 51-150 1308 10 13080 484.444444 10464 387.5555552 8
48"51-150 to 51-160 924 10 9240 342.2222219 7392 273.7777775 8
48"51-160 to 51-170 1968 10 19680 728.8888882 15744 583.1111105 8
12"51-130 to 51-131 140 8 1120 41.48148144 1120 41.48148144 8
24"S1-140 to 51-141 164 8 1312 48.59259254 1312 48.59259254 8
24"51-150 to 51-151 156 8 1248 46.22222218 1248 46.22222218 8
24"51-160 to 51-161 232 8 1856 68.74074067 1856 68.74074067 8
24"51-170 to 51-171 192 8 1536 56.88888883 1536 56.88888883 8
4667.525921 3594.370367
PER DERM WE NEED 7 Samples(see table below)
Number of Number of
Discrete Samples Composite
Volume of Soil(yd) Weight of Soil(tons) for Volatile Samples for Non.
Organic Volatile
200 to<1.000 280 to<1,400 3 3
1,000 to<2,000 1.400 to<2.800 5 5
tads additional 1,0017 yr Each additional 1,400 tons 1 1
10th Street
Estimated Muck Layer from Geo Reports approximately 8'
Structure&Pipe Runs Estimated I Estimated I Estimated Estimated Estimated Muck Estimated Muck Estimated Muck
Area(SF) Depth(FT) Excavation(CF)I Excavation(CY)I (CF) I (a) I Layer Thickness(ft)
54-401 100 14 1400 51.8518518 800 29.6296296 8
54-402 100 14 1400 51.8518518 800 29.6296296 8
S4-402A 100 8 800 29.6296296 800 29.6296296 8
S4-403 100 8 800 29.6296296 800 29.6296296 8
54-404 100 12 1200 44.4444444 800 29.6296296 8
54-405 100 12 1200 44.4444444 800 29.6296296 8
54-406 100 6 600 22.2222222 800 29.6296296 8
54-413 100 6 600 22.2222222 800 29.6296296 8
54-420 100 9 900 33.3333333 800 29.6296296 8
54-420A 100 9 900 33.3333333 800 29.6296296 8
54-421 100 7 700 25.9259259 800 29.6296296 8
54-422 100 6 600 22.2222222 800 29.6296296 8
54-423 100 8 800 29.6296296 800 29.6296296 8
24"RCP 54-401 to 54-402 208 12 2496 92.44444435 1664 61.62962957 8
34"x 53"ERCP 54-402 to 54-402A 175 7 1225 45.37037033 1400 51.8518518 8
34"x 53"ERCP 54-402A to 54-403 245 7 1715 63.51851846 1960 72.59259252 8
24"RCP 54-404 to 54-405 208 10 2080 77.03703696 1664 61.62962957 8
(2)24"RCP 54-404 to 54-406 344 6 2064 76.44444437 2752 101.9259258 8
(2)24"RCP 54-406 to 54-413 240 4 960 35.55555552 1920 71.11111104 8
18"RCP 54-420 to 54-421 160 7 1120 41.48148144 1280 47.40740736 8
18"RCP 54-420A to 54-422 64 7 448 16.59259258 512 18.96296294 8
889.1851843 872.2962954
PER DERM WE NEED 3 Samples(see table below)
Number of Number of
Discrete Samples Composite
Volume of Soil(yd') Weight of Soil(tons) for Volatile Samples for Non-
Organic Volatile
cornopurtils Comnounds
<200 <280 1 1
200 to<1.000 280 to<1,400 3 3
1,000 to<2,000 1,40010<2,800 5 5
Each additional 7.000 yd' teach additional 1.400 Ions 1 1
14th Street
Estimated Muck Layer from Geo Reports approximately 8'
Estimated Area Estimated I Estimated Estimated I Estimated Muck I Estimated Muck I Estimated Muck
Structure&Pipe Runs
(SF) Depth(FT) Excavation(CF) Excavation(CY) (CF) (CY) Layer Thickness(ft)
S2-200 100 12 1200 44.4444444 800 29.6296296 8
52-210 100 12 1200 44.4444444 800 29.6296296 8
S2-211 100 8 800 29.6296296 800 29.6296296 8
S2-220 100 10 1000 37.037037 800 29.6296296 8
52-221 100 8 800 29.6296296 800 29.6296296 8
52-222 100 6 600 22.2222222 800 29.6296296 8
S2-223 100 5 500 18.5185185 800 29.6296296 8
S2-225 100 9.5 950 35.18518515 800 29.6296296 8
52-230 100 13 1300 48.1481481 800 29.6296296 8
52-231 100 13 1300 48.1481481 800 29.6296296 8
52-232 100 13 1300 48.1481481 800 29.6296296 8
S2-241 100 6 600 22.2222222 800 29.6296296 8
52-250 100 13 1300 48.1481481 800 29.6296296 8
52-252 100 8 800 29.6296296 800 29.6296296 8
52-260 100 9 900 33.3333333 800 29.6296296 8
52-261 100 7 700 25.9259259 800 29.6296296 8
52-262 100 6 600 22.2222222 800 29.6296296 8
52-265 100 11 1100 40.7407407 800 29.6296296 8
52-266 100 11 1100 40.7407407 800 29.6296296 8
48"S2-200 to Existing PS MH 114 8 912 33.77777774 912 33.77777774 8
60"52-200 to 52-210 294 12 3528 130.6666665 2352 87.11111102 8
24"RCP 52-210 to 52-211 60 7 420 15.55555554 480 17.77777776 8
60"RCP 52-210 to 52-220 2624 10 26240 971.8518509 20992 777.4814807 8
24"RCP S2-220 to 52-221 64 6 384 14.22222221 512 18.96296294 8
14"x23"ERCP S2-220 to 52-222 104 6 624 23.11111109 832 30.81481478 8
60"RCP 52-220 to S2-225 584 9 5256 194.6666665 4672 173.0370369 8
60"RCP 52-225 to 52-230 264 9 2376 87.99999991 2112 78.22222214 8
24"x38"ERCP 52-230 to 52-231 250 8 2000 74.074074 2000 74.074074 8
18"RCP 52-230 to 52-241 212 6 1272 47.11111106 1696 62.81481475 8
48"RCP 52-231 to 52-232 288 12 3456 127.9999999 2304 85.33333325 8
29"x45"ERCP 52-232 to 52-250 306 9 2754 101.9999999 2448 90.66666658 8
48"RCP 52-230 to 52-250 51 14 714 26.44444442 408 15.1111111 8
48"RCP 52-250 to 52-260 288 10 2880 106.6666666 2304 85.33333325 8
14"x23"ERCP 52-260 to 52-262 116 4 464 17.18518517 928 34.37037034 8
38"x60"ERCP 52-250 to 52-252 322 8 2576 95.40740731 2576 95.40740731 8
24"RCP 52-260 to 52-261 80 7 560 20.74074072 640 23.70370368 8
48"RCP 52-260 to 52-265 618 9 5562 205.9999998 4944 183.1111109 8
48"RCP 52-265 to 52-266 300 12 3600 133.3333332 2400 88.8888888 8
48"RCP 52-266 to 52-270 444 10 4440 164.4444443 3552 131.5555554 8
3261.777775 2750.518516
PER DERM WE NEED 6 Samples(see table below)
Number of Number of
Discrete Samples Composite
Volume of Soil(yds) Weight of Soil(tons) for Volatile Samples for Non-
Organic Volatile
Ccsprnds Cornnounds
<200 <280 1 1
20010<1.000 280 to<1.400 3 3
1,000 to<2,000 1.400 to<2.800 5 _ 5
Each ai3 Jitional 1,000 yd" Each additional 1,400 tons 1 1
Sarmiento, Fiorella
From: Mowry, Bruce
. Sent: Tuesday, September 01, 2015 1:37 PM
To: Sarmiento, Fiorella; Fink,Jay
Subject: FW:Temporary Pumps
This is the one we are looking for that gives new pump pricing.
�i IAM I B EACH
Bruce A. Mowry, Ph.D., P.E.
City Engineer
1700 Convention Center Drive,Miami Beach,FL 33139
Tel:305-673-7080 ext.6565 / Cell:786-759-8941
BruceMowry ci.MiamiBeachFL.00v
We are committed to providing excellent public service and safety to all who live, work and play in our vibrant,tropical,historic communit
From: Chad Widup [mailto:cwidupC@bergeroninc.com]
Sent: Tuesday, October 07, 2014 2:46 PM
To: Mowry, Bruce
Cc: Brian Landis; Nikki Melton
Subject: Temporary Pumps
Bruce
Here is the revised pricing that we discussed yesterday:
Monthly rental on pump$7500 * 10%(markup) =$8,250/pump/month
Fuel delivered $4.5/gal *12gaI/hr.*10%(markup)=$59.40/hr. that any of the pumps run
5th setup/mobe/demobe
Mobe/demobe:$250/each+ markup
Labor/equipment/materials: $3,625.15+ markup
10th setup/mobe/demobe
Mobe/demobe:$250/each + markup
Labor/equipment/materials: $4,000.20+markup
17th setup/mobe/demobe
Mobe/demobe:$250/each+ markup
Labor/equipment/materials:$5,855.20+ markup
Summary
Pumps$8,250/pump/month
Fuel run cost: $59.40/hr./pump
5th Setup: $4,537.67
10th setup: $4,950.23
17th setup: $6,990.73
We will provide meter readings on all the pumps.
Thanks
Chad Widup, PE
Operations Director
Bergeron Land Development Inc
19612 SW 69`h Place
Ft. Lauderdale, Fl 33332
(Office) 954-680-6100
(Cell) 954-214-1391
E-Mail—cwidup @bergeroninc.com
LAND D'EVELOP`MENT
http://www.bergeronlanddev.com
2
MiAMaDADE
Memorandum COUNTY
Date: November 7, 2004
To: Jose Gonzales, P.E. Chief
Pollution Control Division
To: Section Chiefs
Pollution Control Division
To: PRS Staff
From: Wilbur Mayorga, P.E., Chief
Pollution Remediation Sectio
Subject: Natural Background Soil Concentrations for the Barrier Islands of Miami-Dade County
The table below provides the naturally occurring background concentrations of thirteen
inorganic chemicals in soils from the barrier islands of Miami-Dade County. The information
was developed through statistical analysis of laboratory results from surficial soil samples
obtained at 27 locations along Miami Beach and the Spoil Islands (see attached Map). Where
feasible, samples were obtained from the 0-1 foot interval and the 1-2 feet interval at each
location. The listed concentrations represent the Minimum Variance Unbiased Estimate
(MVUE) of the mean for each chemical. If no statistically significant difference (p>0.05) was
determined between the two intervals, the datasets were combined and a single MVUE is
reported. However, for populations indicating a significant difference with depth, the MVUE for
each interval is presented.
Natural Background Soil Concentrations for the Barrier Islands of Miami-Dade County
Chemical Natural Background Concentration (mg/k9)
Name
0-2 ft interval
Arsenic 5.2
Aluminum 798.7
Cadmium 0.3
Iron 2050.7
Selenium" <0.5
Zinc 13.1
Silveri 0.4
0-1 ft interval 1-2 ft interval
Barium 8.1 5.9
Chromium 7.9 5.7
Copper 5.4i 2.3i
Lead 15.0 5.2*
Mercury 0.054 0.026*
Nickel 1 .08* 0.66'
*Represents censored data. Datasets censored to fit lognormal distribution
*i Data for selenium not analyzed statistically since all results were below the detection limit
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