brunette. margaret m
TRANSCRIPT
Brunette. Margaret M
From: Brunette, Margaret M 230842Sent: Monday, December 02, 2002 2:41 PMTo: '[email protected]'Cc: Wawrzyn, William G; Westenbroek, Stephen; Schmidt, James A; Krohn, Charles JSubject: Documents for Administrative Record
Scott,
Here is an update on the documents for the administrative record. Let me know if you have any questions
• The 12 documents from "BBL" we are assuming you will get from Mercury Marine• The 1 document from "Mercury Marine" we are assuming you will get from Mercury Marine• The 1 document from "Blasland A Bouck Engineers" we are assuming you will get from Mercury Marine• The 3 letters (from Frank. G.T; from Bar don, David L; and from Baumgartner, Tom) we are unable to
locate at this time.• The (JS&S Report and the WDNR Fish and Wildlife data have been or will be sent electronically• I will be copying and sending to you the Graefe. Margaret "Preliminary Assessment"; the 2 RMT
documents; the Wawrzyn. Will Memo and the 1974 sample result from the Mercury Marine Plant #1outfall (in the Ruck Raceway, I believe) that Mercury Marine has been requesting.
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(414)263-8557(414)263-8716 ( F A X )Margaret [email protected] \ti\ us
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Page 1
i WISCONSIN
Sfattstical & H«conl Gird no.
Hours of 'vrnple Collection
Collection S;'.e' Co. _____
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2 7 3 9 7Laborstoiy Sample No. -i? 4--
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S. L. inhocn. M.D., DirectorWisconsin S'.3l« Lasotnlory o) Hytji«<e'vtadison, Wisconsin S3706
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CORRESPONDENCE/MEMORANDUM STATE OF WISCONSIN
February 5, 1990 File Ref: 3200
TO: Paul Pajak FM/SEH
FROM: Will Wawrzyn WR/SEH't
SUBJECT: Results of Mussel Tissue Analysis for Cedar Creekand the Milwaukee River, Ozaukee County
Just a short note on the results of your mussel samplecollection and tissue analyses for PCBs from Cedar Creek andthe Milwaukee River. All samples were composites and theresults are listed below:
1. Cedar Creek upstream of Cedarburg at CTH 60<0.05 mg/kg.
2. Cedar Creek downstream of Cedarburg and the Hamilton dam2.70 mg/kg.
3. Milwaukee River at CTH T and upstream of Cedar Cr.confluence<o.05 mg/kg.
4. Milwaukee River at CTH C and downstream of Cedar Cr.confluence0.23 mg/kg.
With these results I am more confident than ever that thecritical extent of PCB contamination and it's sources, arelimited to the Milwaukee River below Cedar Cr. and Cedar Cr.within Cedarburg. Historically, the use of fish as the onlyindicator for identifying the extent and source ofcontamination was limited to the migratory nature of thebeast.
Your efforts and expertise in collecting, identifying andprocessing the samples is greatly appreciated, especiallysince your personal time was used to collect these samples dueto your own work time constraints. I also appreciate yourtime spent in the field with Tom Artilla and myself ineducating us in the "fine art" of locating and identifyingmussels, no easy task for a neophyte like myself. Tom and ourcentral office staff are utilizing a similar monitoringstrategy for the Sheboygan River project.
Thanks again.
cc: Jeff BodeJim McNellyDon TillsRon KazmierczakDoug Morrissette FM/4Bruce Baker WR/2
PRELIMINARY ASSESSMENTCEDAR CREEK
OZAUKEE COUNTY, WISCONSINTDD NO.
September 3, 1992
WISCONSIN DEPARTMENT OF NATURAL RESOURCES
Prepared By: Reviewed By: Approved By:
Margaret GraefeProject Manager
Date: September 3, 19**.
Prepared by: Margaret Graefe, Wisconsin Department of Natural Resources
Site: Cedar CreekCity of CedarburgOzaukee County, Wisconsin
EPA ID No.: WID988590261
TDD No.:
1. INTRODUCTION
Under authority of the Comprehensive Environmental Response, Compensation, andLiability Act of 1980 (CERCLA) and the Superfund Amendments andReauthorization Act of 1986 (SARA), and a Cooperative Agreement (CA) with theU.S. Environmental Protection Agency (EPA), the Wisconsin Department ofNatural Resources (WDNR) Emergency and Remedial Response Program (ERRP)conducted a Preliminary Assessment (PA) at the Cedar Creek site in OzaukeeCounty, Wisconsin. The purpose of this investigation was to collectinformation concerning conditions in Cedar Creek sufficient to assess thethreat posed to human health and the environment and to determine the need foradditional CERCLA/SARA or other appropriate action. The scope of theinvestigation included review of available file information, a target survey,and various on-site and off-site reconnaissance.
2. SITE DESCRIPTION, OPERATIONAL HISTORY, AND WASTE CHARACTERISTICS
2.1 Location
The Cedar Creek site is located in the Cedarburg Township of Ozaukee County,Wisconsin. The geographic coordinates are N43 19.19' and W087 59.13'(Reference 1). To reach the site travel west from Interstate 1-43 on Hwy Capproximately 3.5 miles to Hwy 57, travel north on Hwy 57 approximately 1.25miles and turn east onto Columbia Avenue. Columbia Ave will cross the creekwithin about a block (Figure 1).
Ozaukee County is characterized by a variable northern climate. Summers arewarm and humid with the 1990 average temperatures around 66 F. The wintermonths can be harsh with the 1990 average temperatures around 26 F. Annualprecipitation was approximately 34 inches for 1990 (Reference 2).
2.2 Site Description
Cedar Creek and its watershed are located in the Milwaukee River Basin inSoutheastern Wisconsin. Cedar Creek is formed at the outlet of Big Cedar Lakein Washington County and flows south by southeast through Washington andOzaukee Counties for approximately 31.5 miles before its confluence with theMilwaukee River downstream of the City of Cedarburg (Reference 4). The areaof concern includes the four lowermost impoundments and stream reaches of
FIGURE 1
Cedar Creek between stream mile points 5.7 and 0.0. In downstream order thewaterbodies included are Ruck Pond and its spillway Ruck Raceway, ColumbiaPond, Wire and Nail Pond, and Hamilton Pond. According to the 1892 OzaukeeCounty Plat Book, all dams have been in place and the course of Cedar Creekhas not changed significantly since before 1892 (Reference 3). Cedar Creek iscurrently classified by the Wisconsin Department of Natural Resources as aFull Fish and Aquatic Life Stream, capable of supporting a diverse fish andaquatic life community including warmwater sportfish. Recreational usesinclude both full and partial body contact forms such as fishing, hunting,swimming, wading and a variety of aesthetic uses such as site seeing andwildlife observation (Reference 4).
Ruck Pond is a narrow and shallow four acre pond formed by a ten foot headdam. The pool formed by the dam is approximately 0.30 mile long and averages80 feet wide. Maximum depth observed is 5.7 feet. Water from Cedar Creekspills over the dam and can also be sluiced around Cedar Creek's main channelthrough a raceway located downstream of the dam's southwestern sill. Waterflowing over the Ruck Pond dam travels through a 1000 feet long reach of CedarCreek before it enters the Columbia Pond (Reference 4).
The Ruck Pond Raceway is a 2200 foot long diversion around the mainstem ofCedar Creek. A short length of the raceway is enclosed in a conduit with theremainder flowing through an open channel. It has a maximum observed waterdepth of two feet and an average width of 12 feet. The upper half of theraceway is free-flowing while the lower half is somewhat impounded by theColumbia Pond (Reference 4).
The Columbia Pond is the largest of the four Cedar Creek impoundments includedas part of the site. It is characterized as a wide and shallow impoundmentcovering approximately 14.8 surface acres. It has a maximum width of 400 feetand a maximum observed water depth of 7.5 feet. The dam is a fixed sill andmasonry structure, and includes a flood gate. Based on available information,the water has never been drained from the pond (Reference 4).
The Wire and Nail Pond is an elongated and narrow impoundment, comprised oftwo distinct basins. The upper-most basin is shallower and wider than thelower basin. All totaled, the pond is approximately 3.0 acres in size,approximately 0.30 miles long, and has a maximum observed water depth of 14feet. Widths range from as little as 40 feet to 100 feet. The dam is a rockand earthen filled concrete structure having a head of 25 feet. There is apartial control structure associated with the dam raceway. There is a 1.6mile long stretch of free-flowing stream between the Wire and Nail dam and thepool formed by the Hamilton dam (Reference 4).
The Hamilton Pond is a five acre impoundment having a maximum observed depthand width of five feet and 160 feet, respectively. The dam is a rock andearthen filled concrete structure with a head of 7.0 feet (Reference 4).
The first source facility is located at W65 N595 St. John Avenue (Figure 2).Presently 30,000 square feet of the newer portion of the building are leasedas warehouse storage space. It appears after smoke testing and snakingstudies that this site has stormsewer access within the building to a sewerlocated at the NW corner of the building. This stormsewer discharges on thewest bank of Cedar Creek, specifically into Ruck Pond approximately 550 feet
upstream from the Columbia Avenue Bridge. This part of the stormsewer systemwas installed in the late 1940's (Reference 3).
The second source facility is located at N39 W5789 Hamilton Road (Figure 2).Amcast International Corporation, Heta Mold Division, the current occupant,has been at the property since 1984. Dayton Malleable, Incorporated occupiedthe property from 1955-1984 and Meta-MoId occupied the property from 1939-1955. All three occupants operated aluminum die-casting facilities at thislocation. Amcast currently operates an aluminum and magnesium die castfacility. The discharge point for stormsewers at or near the Amcast facilityis on the west bank between the sewerage treatment plant and the bowling alley(Figure 2) (Reference 3).
Storm sewers in Cedarburg and the surrounding area do discharge to CedarCreek. PCB contamination has been detected in sediments and fish from thecreek (Reference 5).
2.3 Operational History and Waste Characteristics
The site is defined as a stretch of Cedar Creek and the potential contributorsof PCBs to the creek. There is no one owner of the sediments or the creekbed. The site is connected to the potentially responsible parties (PRPs) bythe fact that the storm sewers in the area discharge to the creek. Dischargesto the sewers and spills of materials containing PCBs have been documented atvarious locations/facilities throughout the City (Reference 5). To datesampling has been completed at some of the PRP sites/facilities, within thestorm sewers, and in the creek. There is documented PCB contamination at thesites/facilities, in the storm sewers, and in the creek. Some sediment datinghas also been done. No emergency removal of sediments has occurred (Reference5).
The first facility is located at W65 N595 St. John Avenue (Figure 2).Presently 30,000 "square feet of the newer portion of the building are leasedas warehouse storage space. The current owner of the property, since 1983, isMadison Joint Venture. Mercury Marine owned the property from 1951 to 1982.Mercury Marine operated an aluminum die casting facility at this site (Plant#2). In 1966, 250 employees worked three shifts to produce 50,00 casts perday. Their 1979 stormsewer discharge was reported to be 10,000 gallons perday. In 1976 they had four known underground storage tanks. The tankscontents included ethylene glycol, stoddard solvent, 'liquid wastes'(used as aholding tank), and hydraulic fluid or waste oil. To date the WDNR hasknowledge of only the holding tank being removed. PCBs including Aroclor 1260were detected in the area of excavation as well as in the holding tank when itwas removed in 1984. PCBs have also been found in the groundwater near the1984 tank excavation. Mercury Marine is known to have purchased Houghto-Safe520, Die Slick, Pydrol 312, and Santosafe; the last two are known to containPCBs. Aluminum die casting operations typically use high pressure hydraulicfluids and cutting and grinding oils (Reference 3).
A search of WDNR's wastewater files reveals numerous complaints againstMercury Marine for discharging oil into Ruck Pond. In May of 1969 ThomasKroehn of the State Environmental Protection Division (now the WDNR) requestedthat Mercury Marine modify their wastewater discharge to eliminate inclusionof high strength wastes from the area around the die-cast machines. In
SITE LOCATION MAP OF THECEDARBURG AREA
FIGURE 2 PuUWring. Inc. I
October of 1969 the City of Cedarburg asked them to stop their discharges toRuck Pond. More than one order waa issued to Mercury Marine's Plant #2 by theWDNR instructing them to eliminate the discharge of oil and wastes from thecooling waterline at the die-cast plant (Reference 3).
The second facility is located at N39 W5789 Hamilton Road (Figure 2). AmcastInternational Corporation, Meta Mold Division, the current occupant, has beenat the property since 1984. Dayton Malleable, Incorporated occupied theproperty from 1955-1984 and Meta-Mold occupied the property from 1939-1955.All three occupants operated aluminum die-casting facilities at this location.Amcast currently operates an aluminum and magnesium die cast facility.Casting operations typically use PCB containing high pressure hydraulic fluidsand cutting and grinding oils. Specific products used were Pydraul 312,Pydraul 312A, Pydraul 312C,, and Amitron cutting fluid, which was used to oilroads on the property. PCBs have been detected in around the facility onnumerous occasions. On December 15, 1981 the EPA contracted Versar, Inc. toconduct a site investigation of the Dayton Malleable facility. The inspectionresulted in civil action on five counts. Forfeitures of $22,500 were settledupon.
The Wisconsin Pollutant Discharge Elimination System (WPDES) records reflectfew exceedences and no indication of PCB Discharges by Amcast since 1987 whena special condition of the permit was added that required PCB monitoring(Reference 3).
3. GROUND WATER PATHWAY
3.1 Hydrogeologic Setting
The following paragraphs describe the regional geology and hydrogeology.Ozaukee County lies in the Lake Michigan basin. The rocks and soils range inage from Precambrian basement rocks to the Quaternary glacial deposits,alluvium, and soils. The bedrock, from oldest to youngest, includesPrecambrian crystalline rock; Cambrian sandstone; Ordovician dolomite,sandstone, and shale; Silurian dolomite; and Devonian dolomite. Many of theseunits underlie only parts of the area. A stratigraphic column is shown inFigure 3.
Low permeability crystalline rocks of Precambrian age prevent further downwardmovement of groundwater and underlie all of Ozaukee County. The surfaceslopes to the east and ranges in elevation from 500 feet above sea level inwestern Washington County to more than 1,200 feet below sea level along theLake Michigan shore. A major fault in the Precambrian surface extends fromPort Washington through the southwest corner of Ozaukee County to the Illinoisstate line and the surface may be more than 2,000 feet below sea levelsoutheast of the fault.
Cambrian rocks overlie the Precambrian rocks and are present throughoutOzaukee County. These rocks are primarily sandstone, but include some shale,siltstone, and dolomite. The sandstones are comprised of the Dresbach Group,including the Mt. Simon, Eau Claire, and Galesville formations, the Franconiasandstones, and the Trempealeau Formation, which includes the Jordon Sandstoneand the St. Lawrence Formation. The Cambrian sandstone thickens eastward from
DONOHUE, 1
AQUIFER AGE
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QUATERNARY
DEVONIAN
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ORDOVICIAN
CAMBRIAN
PRECAMBRIAN
FORMATION
MILWAUKEE
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zero at locations in western Washington County to several hundred feet alongthe Lake Michigan shore.
Ordovician rocks overlie the Cambrian rocks and are present, in part,throughout the entire area. From oldest to youngest, they are the Prairie duChien Group, which is discontinuous due to erosion; the St. Peter Sandstone;the Platteville and Decorah Formation, and the Galena Dolomite, which isundifferentiated and commonly referred to as the Galena-Platteville unit; andthe Maquoketa Shale.
The Ordovician rocks dip generally eastward with known thickness ranging from500 feet to 700 feet. The surface of the Galena-Platteville unit ranges inaltitude from more than 750 feet above sea level in western Washington Countyto more than 150 feet below sea level along the Lake Michigan shore.
Silurian dolomite overlies the Ordovician rocks. The Silurian dolomite is theuppermost bedrock unit, except in areas along the Lake Michigan shore where itis overlain by younger Devonian rocks. The Silurian rocks dip generallyeastward and their thickness increases eastward to a maximum of about 500 feetat Lake Michigan.
The bedrock surface ranges in elevation from approximately 600 to 900 feet inOzaukee County and was probably shaped by preglacial stream erosion indicatedby several bedrock valleys sloping eastward toward Lake Michigan.
The unconsolidated Quaternary deposits consist c-f glacial sediments with somealluvium and surficial marsh deposits. End moraines, ground moraines, outwashplains, and lake plains are the predominant landforms produced by glacialdeposition. The thickness of these deposits ranges from zero in several areaswhere the bedrock outcrops, mainly in the southeast quarter of WashingtonCounty, to more than 600 feet where glacial materials fill bedrock valleys andin areas of topographic highs formed by end moraines. (Reference 6)
Large supplies of water are produced from the sand and gravel, Niagara, andSandstone Aquifers, which are the three principle aquifers in the OzaukeeCounty area.
The sand and gravel aquifer is comprised of unconsolidated sand and graveldeposits of outwash, alluvium, and glacial lake deposits and tends to exist inareas of deep bedrock valleys. Figure 4 shows the limit of the aquifer'sareal extent within Washington and Ozaukee Counties. The sand and gravelaquifer is generally absent from the Cedarburg area where the thickness ofunconsolidated material is generally around 50 feet.
Yields from the sand and gravel aquifer have been found to be as high as 1200gpm with specific capacities as high as 50 gpm/ft. The yields are adequatefor municipal, industrial, and domestic uses, yet this aquifer is not usedextensively.
Water quality is generally good, however hardness of greater than 180 mg/1 hasbeen found in some areas. The water table is shallow and easily polluted bysurface wastes.
Hydraulic conductivity values ranging from 20 to 1,500 ft/d (150 to 11,267
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LOCATION MAP
YOUNG. H. L. AND W. G. BATTEN. 1980
FIGURE4
CEDARBURG GROUNDWATERINVESTIGATION
LIMITS OF SAND AND GRAVEL AQUIFERSTRANDASSOCIATES INC
gpd/ft ) have been determined from wells screened in this aquifer inWashington and Ozaukee Counties.
The Niagara Aquifer consists of undifferentiated Devonian and SilurianDolomite overlying the Maquoketa Shale. It is present throughout the areaexcept in deep bedrock valleys in Washington County. The aquifer ispredominantly unconfined, however because much of the overburden is clay tillmany areas of the Niagara are locally confined. The aquifer thickness is thesame as the combined saturated thickness of the Devonian and SilurianDolomite.
Small to large yields of 10 gpm to 1200 gpm are found in the wells throughoutthe area. Specific capacities range from 0.2 to 400 gpm/ft. Most municipalwells in Washington and Ozaukee Counties yield 150 to 500 gpm. The wide rangeof specific capacities probably reflects the difference between wells thatpenetrate relatively uncreviced dolomite and wells that penetrate cracks orcrevices.
Hydraulic conductivity values ranging from 0.01 to 585 ft/d (7.5 x 10 -2 to4,394 qpd/ft ) were determined from area wells. The median is 3.2 ft/d (24gpd/ft ). Interconnecting fractures, joints, and solution openings formedduring preglacial erosion are responsible for generally greater hydraulicconductivity values in the upper few feet of the aquifer.
Water quality in the Niagara Aquifer is generally good, but locally is veryhard and highly mineralized.
The groundwater flow direction is generally to the east towards Lake Michigan.The flow direction and potentiometric surface is shown in Figure 5 (Reference6).
The Sandstone Aquifer, confined by the Maquoketa Shale, consists of Ordovicianand Cambrian rocks composed of sandstone and dolomite formations, and overliesimpermeable Precambrian crystalline rocks. The aquifer is continuousthroughout the area and ranges in total thickness from 300 feet in southwestWashington County to more than 900 feet in southwest Ozaukee County.
Within the Sandstone Aquifer, the ability of the Cambrian sandstones to storeand yield water make it an important source. The St. Peter Sandstone is themajor water-yielding Ordovician rock. No wells are known to pump water fromthe Galena-Platteville or Prairie du Chien Dolomites exclusively, howeverthese formations are considered part of the Sandstone Aquifer and are commonlyused in combination with this and the Niagara Aquifer. Yields from theSandstone Aquifer are as high as 1,500 gpm with specific capacities of as muchas 14 gpm/ft. Most municipal and industrial wells yield 300 to 600 gpm.Higher specific capacities are in wells that penetrate greater thicknesses ofthe aquifer. Since many wells in southern Ozaukee County are cased in boththe Sandstone and Niagara Aquifers, water from the Niagara may constitute 20to 40 percent of the yield from these wells.
Hydraulic conductivity values have been estimated to be approximately 2.4 ft/d(18 gpd/ft ) in this area, however good aquifer test data are not available.Water quality is generally good, but is hard to very hard and saline in someareas.
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NOT TO SCALEYOUNG, H. L. AND W. Q. BATTEN, 1980
CEDARBURG GROUNDWATERINVESTIGATION
WATER TABLE ELEVATIONSOF NIAGARA AQUIFER
FIGURE
5
Figure 6 shows the potentiometric surface of the Sandstone Aquifer inWashington and Ozaukee Counties during the winter of 1976-77. The directionof flow is to the southeast. Groundwater discharge is at wells located in thearea of Milwaukee and Chicago and into Lake Michigan. In this hydrgeologicsystem, the potentiometric surface of the Sandstone Aquifer used to be higherthan the overlying water table, once resulting in discharge from the sandstoneto the Niagara Aquifer. The direction of flow used to be generally due easttoward Lake Michigan; however, large quantities of water have since beenpumped from this aquifer over the last century, and since 1880, the surfacehas declined as much as 250 feet in southwestern Ozaukee County. As a result,the water table is now higher than the potentiometric surface. Water movesdownward through inconsistencies in the Maquoketa Shale and through wells opento both the Niagara and Sandstone Aquifers. Additional recharge of theSandstone Aquifer is from the west in Dodge County where the shale has beenremoved by erosion. (Reference 6)
Information on site geology and hydrogeology was obtained in a previous studyin the City of Cedarburg, including eight shallow borings, two deeppiezometers, and four of the City of Cedarburg wells.
The unconsolidated deposits in the area are glacial in origin and overliedolomite bedrock. These deposits are variable and non-continuous, exhibitingthe complex stratigraphy typical of glaciated areas. The area consists ofground and end moraine, glacial lake, and outwash deposits laid down duringthe last Wisconsinan glacial period.
Figure 7 shows the boundary between ground moraine and elongate end morainethat parallel Lake Michigan at the City of Cedarburg. End moraines are formedby deposition of glacial debris at the margin of a glacier. They may form atthe point of maximum ice advance or during recession of the glacier. Groundmoraines are deposited beneath moving glacial ice or as a residue after theice melts. Both ground and end moraines consist of unsorted and unstratifiedglacial deposits ranging in size from clay to boulders. Enclosed depressionscalled kettles are typical. Glacial lakes formed in these kettles containstratified deposits of well sorted sand, silt, and clay. Typicallystratified, well sorted sand and gravel outwash is deposited at the terminusof the glacier. Outwash is laid down by water from melting ice fronts.
Two of the borings contained very poorly sorted deposits of silty, fine tocourse sand and gravel. This type of deposit is typical of ground or endmoraine deposits. Most of the remaining borings at the site appear topenetrate glaciolacustrine sediments. Two of the borings consisted of typicalstratified lake deposits of clay and sand, and partings, lenses and seams ofsilty fine sand and lean clay. Lake deposits appear to overlay morainaldeposits in three of the borings and one of the municipal wells. One of theborings may contain stratified sand and silt outwash sediments.
Topsoil or fill material, probably produced during preparation of the groundsurface prior to development, overlies the entire area. Topography of thearea is shown in Figure 8 (Reference 6).
Undifferentiated Devonian and Silurian dolomite bedrock directly underlies theunconsolidated glacial deposits. A drill core from a piezometer was availablefor detailed study. A detailed description of the dolomite from the core is
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FIGURE6
CEDARBURG GROUNDWATERINVESTIGATION
POTENTIOMETRIC SURFACE OFCONFINED SANDSTONE AQUIFER
STRAND
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END MORAINE
GROUND MORAINE
OUTWASH. UNFITTED
LAKE BASIN DEPOSITS
PITTED OUTWASH AND OTHER
ICE-CONTACT DEPOSITS
Milwaukee
LOCATION MAP
YOUNG. H. L. AND W. G. BATTEN. 1960
FIGURE
7
CEDARBURG GROUNDWATERINVESTIGATION
GLACIAL DEPOSITSSTRANDASSOCIATED INC
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FIGURE
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CEDARBURG GROUNDWATERINVESTIGATION
SITE TOPOGRAPHYSTRANDASSOCIATES INC
as follows:
There are four distinct lithologic differences seen in the drill corefrom 21 feet to 180 feet below ground surface.
From 21 feet to approximately 33 feet is a rubbly, fractured zone ofslightly recrystallized, very fine to medium grained tan to gray sparrymicrite. Two to three inch thick deposits of dense, gray clay fill thefractures at this depth.
From approximately 33 feet to 51 feet is a light gray to tan zone ofmore competent dolomite. This unit exhibits a greater degree ofrecrystallization. The unit is fine to medium grained sparry micrite.Greater compaction in this zone is evidenced by the increasingoccurrence of pressure-solution stylolites. Fractures occur every 1.0to 1.3 feet and are not infilled with clay.
A transitional zone exists between the above described lithology and amore porous, medium grained sparry micrite. This transitional zoneextends from approximately 51 feet to 60 feet. It is tan to light grayand contains traces of pyrite. Fractures occur every 1.0 to 1.3 feet.
The dolomite from approximately 60 feet to a very distinct lithologicalcontact at 126 feet is medium grained, moderately recrystallized sparrymicrite which contains traces of pyrite and is tan to gray in color.The core is very mottled and occurrences of drusy quartz in vugs iscommon. Some fracture points show the elongated column likecharacteristics of the styolitic fronts. Fractures in this zone occurevery 1.3 to 5.5 feet. The distance between fractures increases withdepth.
The remaining portion of the core penetrates a compact, highly banded,very fine to fine grained micrite. The bands are gray to dark gray in •color and probably represent organic-rich zones. Small, chalky whitemicritic lenses, some containing chert nodules, exist throughout theunit. The absence of stylolites and evidence of significantrecrystallization indicate this unit was not highly compacted duringburial. However fractures still exist at spacings of 0.5 to 1.5 feet.
There was a 100% recovery of the core indicating no large fractures orsolution channels existing to the depth drilled. The existing fracturesare distinct hairline fractures probably resulting from the weight ofthe ice when glaciers inundated this portion of Wisconsin, as well asmovement during subsequent isostatic rebound.
The following is a description of the remainder of the stratigraphic sequenceas interpreted from the City of Cedarburg well logs:
The Devonian and Silurian dolomites extend to depths of between 495 feetand 510 feet with a thickness of 480 feet to 498 feet. The dolomiteremains a light gray, containing white chert and traces of pyrite andfossil fragments.
The Maquoketa Shale directly underlies this dolomite, at a depth between
695 feet and 705 feet with a thickness between 195 feet and 205 feet.It is gray to blue-gray in color. City well 1 reports it as calcareousand city well 5 reports traces of pyrite, chert, and fossil fragments.
Directly underlying the shale at depths of 835 feet to 920 feet is theundifferentiated Galena-Platteville Dolomite. This formation is 215feet to 225 feet thick. It is light brown to gray in color with whitechert and traces of pyrite and fossil fragments. The grain size isreported as fine to course sand. The fracture density is unknown.
Underlying the Galena-Platteville Formation is the St. Peter Sandstone.It is described as white to gray in color with traces of white chert anddolomite-pyrite cement. The grain size is reported as very fine to verycourse sand. All city wells terminate in this formation, except forcity well 6. The stratigraphic sequence shown in the well log for citywell 1 indicates the St. Peter Formation is approximately 205 feet thickand is underlain by undifferentiated formations belonging to theDresbach Group. It is apparent from this well log that, in this area,the Prairie du Chein, Trempealeau, and Franconia Formations have beenremoved by erosion (Reference 6).
3.2 Ground Water Targets
The source for drinking water in the City of Cedarburg and the surroundingareas are municipal and private wells. The total population within 4 miles is31,312 (References 7,8,9). The population of Cedarburg is 9,005 (Reference7). The five municipal water supply wells in Cedarburg are shown on Figure 9.The following is a description of the individual City wells. Well 1 isdrilled to a total depth of 1210 feet and penetrates 290 feet into the St.Peter Sandstone. The well is cased through the Niagara Aquifer and MaquoketaShale and draws water solely from the Sandstone Aquifer. The normal staticwater elevation is 685 feet. The estimated operating capacity is 580 gpm(Reference 6).
Well 2 is disconnected from the distribution system (Reference 7).
Well 3 is drilled to a depth of 1,002 feet and is constructed such that it isopen to and draws water from both the Niagara and Sandstone Aquifers. Theestimating capacity of the well is 850 gpm. The recorded static waterelevation is 718 feet.
Well 4 is drilled to a total depth of 1210 feet and penetrates 175 feet intothe St. Peter Sandstone. The well is cased from +2 to 110 feet and from 573to 829 feet. It is open to and draws water from both the Niagara andSandstone Aquifers. The static water elevation was recorded at 725 feet. Theestimated operating capacity is 550 gpm.
Well 5 is drilled to a depth of 965 feet and like well 3, draws water fromboth the Niagara and Sandstone Aquifers. Its estimated operating capacity is700 gpm. The static water elevation is 715 feet.
Well 6 is drilled to a total depth of 635 feet. It is terminated at theMaquoketa Shale and draws water solely from the Niagara Aquifer. THe well iscased from +1 to 170 feet. The static water elevation is 692 feet. The
fi
GROUND STORAGE iorcrowniD IRESERVOIR
WELL NO. 4
ELEVATED '.TOWER ;
SOO IOOO
WELL NO. S
WISCONSIN DNRCEDARBURG
GROUNDWATERINVESTIGATION
CITY WELL LOCATIONS
FIGURE 9
estimated operating capacity is 650 gpm (Reference 6).
The City of Grafton has a population of 8,381 and has six municipal wells. Onewell is on standby (Reference 7).
There are approximately 4,581 homes within 4 miles which use private wells fordrinking water (Reference 9).
3.3 Ground Water Conclusions
A release of hazardous substances from Mercury Marine Plant #2 to theuppermost aquifer is suspected due to sample results from a monitoring well onthe adjacent City property. This well was installed during a Departmentinvestigation of a separate water supply contamination problem. PCBs weredetected in this well in 1989 (References 6, 10). To this date there havenot been PCBs detected in the City of Cedarburg municipal wells (Reference11).
4. SURFACE WATER PATHWAY
4.1 Hydrologic Setting
The three major surface water systems influencing the Cedarburg area are CedarCreek, the Milwaukee River, and Lake Michigan.
Cedar Creek and its watershed are located in the Milwaukee River Basin. CedarCreek is formed at the outlet of Big Cedar Lake in Washington County and flowssouth by southeast through Washington and Ozaukee Counties for approximately31.5 miles before its confluence with the Milwaukee River downstream of theCity of Cedarburg. Cedar Creek has a drainage area of 127 sg. miles and anaverage daily discharge of 66.4 cfs at Cedarburg. The average stream gradientis 9.6 ft/mile (Reference 4).
The Milwaukee River has a mean daily flow equalled or exceeded 99.5% of thetime of 10 cfs. A flow of 100 cfs may be equalled or exceeded 68% of thetime. The average discharge of the Milwaukee River is 384 cfs. The actualflow may be affected by its fifteen dams. The average stream gradient is 4.4ft/mile.
Approximately 17 mgd enters the Lake Michigan basin through the SandstoneAquifer. Approximately 12 mgd enters through the Niagara and sand and gravelaquifers from the west. About 20 mgd leaves the basin from the SandstoneAquifer and 46 mgd from the Niagara and sand and gravel aquifers to the eastand north. This accounts for a total loss of approximately 37 mgd or about0.2 inches per year. Generally underflow water, entering or leaving the basinthrough the groundwater system, enters the basin from the west and movestowards Lake Michigan or pumpage centers in Green Bay, Milwaukee, or Chicago.Approximately 480 billion gallons of water leave the basin each year as streamflow (Reference 6).
4.2 Surface Water Targets
Cedar Creek is currently classified by the Wisconsin Department of Natural
Resources as a Full Fish and Aquatic Life Stream, capable of supporting adiverse fish and aquatic life community including warmwater sportfish.Recreational uses include both full and partial body contact forms such asfishing, hunting, swimming, wading, and a variety of aesthetic uses such assite seeing and wildlife observation (Reference 4).
There are no drinking water intakes located within 15 downstream miles of thesite. All residents are served by municipal (cities of Cedarburg, Grafton andpart of Mequon) or private wells (Reference 12).
There are numerous small wetlands within 15 downstream miles of the site(Reference 14). Two threatened and one endangered species, the Redfin Shiner,the Greater Redhorse, and the Striped Shiner (all fish) can be found in CedarCreek in or below Ruck Pond (Reference 15).
4.3 Surface Water Conclusions
There has been a documented release to surface water. Sediment, fish tissue,and water column samples have been collected from the creek. All these havedocumented contamination in and below Ruck Pond (References 4, 5, 13). Fishtissue containing PCBs in excess of the U.S. Food and Drug Administration's(USDA) recommended maximum level of 2 ug/g (parts per million) for humanconsumption were found in and below Ruck Pond (Reference 4). PCS levels insediment samples from Ruck Pond were documented as high as 41,000 ug/g(Reference 5).
There are no drinking water intakes within 15 miles downstream of the site(Reference 12). There are numerous small wetlands along Cedar Creek and twothreatened and one endagered species found in the creek. Primary targetsinclude the fishery in Cedar Creek and wetlands associated with it andhabitats of threatened and endangered species in Cedar Creek.
5. SOIL EXPOSURE AND AIR PATHWAYS
5.1 Physical Conditions
Cedar Creek flows through downtown Cedarburg and also through a city park. Afish advisory has been posted on the creek. The creek still appears to beused for catch and release fishing and recreational activities includingwading and sight seeing.
5.2 Soil and Air Targets
There are residences and business along the creek. There are also businessesoperating at the two source facilities. City crews have access to the stormsewers. The neaerest residence in on the creek bank and there are a number ofschools within .25 miles of the site. The total population within a 4-mileradius of the site is 31,312 as determined by using the USGS topographic mapsand the WDNR 1985 Public Water Supply Data Book (Reference 16).
The sediments in Cedar Creek have been documented to contain high levels ofPCBs and there does not appear to be any deterent to human contact with thesesediments.
5.3 Soil Exposure and Air Pathway Conclusions
The soil/sediment exposure pathway appears to pose some threat in Cedar Creekdue to the possibility of people fishing and wading in the creek. There isalso an exposure pathway for city crews with contaminated sediments andsurfaces in the storm sewers. There is also evidence of some limited soilcontamination at both of the source facilities where there are workers onsite. Sumps in the former Mercury Marine Plant #2 also contain PCBcontaminated water and some sludge (References 5, 17, 18). A release to theair is not suspected because most of the contamination is contained in thesediments which are at the bottom of the creek. In addition during visits tothe site, no odors were detected and there was no indication of any blowingdust or soil.
6. SUMMARY AND CONCLUSIONS
Mercury Marine Plant #2 and Amcast International Corporation operated diecasting facilities that used PCBs. These PCBs were at some point dischargedto the City of Cedarburg storm sewer system and then entered Cedar Creek.Highly contaminated sediments have been documented in the creek. Fish tissuesamples and water column samples have also contained PCBs. PCBs have alsobeen detected within the source facilities, in the storm sewers, in thesurrounding soils, and in a monitoring well at one of the source facilities.
REFERENCES
1. WDNR, Jim Schmidt, March 20, 1991, use of the LORAN C at the ColumbiaAve. Bridge.
2. Climatological Data Annual Summary Wisconsin 1990, Volume 95, Number 13,Department of Commerce, National Oceanic and Atmospheric Administration,National Environmental Satellite, Data, and Information Service,National Climatic Data Center.
3. WDNR, Timothy R. Baker, 1990, Report on the Status of the WDNR'sInvestigation into the PCB Contaminated Sediments associated with theCedar Creek, in the area of Cedarburg, Ozaukee County, Wisconsin.
4. WDNR, Will Wawrzyn and Robert Wakeman, 1986, Distribution ofPolychlorinated Biphenyls in Cedar Creek Sediments at Cedarburg, OzaukeeCounty, Wisconsin.
5. WDNR, Strand Associates, Inc., 1992, Cedar Creek PCB InvestigationReport.
6. WDNR, Strand Associates, Inc., 1990, Wisconsin DNR Cedarburg GroundwaterInvestigation, Existing Conditions Report.
7. WDNR, 1985, Public Water Supply Data Book, prepared by Eric P.Syftestad, WDNR, Madison, Wisconsin.
8. U.S. Department of Commerce, Bureau of the Census, Charateristics of thePopulation, General Population Characteristics - Wisconsin, 1980 Censusof Population.
9. U.S. Geological Survey, 7.5 - minute Topographic Quadrangle Maps ofWisconsin: Five Corners, 1959, photorevised 1971, 1976; Cedarburg,1959, photorevised 1971, 1976; Menomonee Falls, 1958, photorevised 1971,1976; Thiensville, 1958, photorevised 1971, 1976.
10. WDNR, Water Supply Section, 1989, Sampling results for MW1 on St. JohnAve.
11. WDNR, conversation with Sharon Schaver, 1992, Water Supply Section.
12. WDNR, conversation with Liz Spaeth-Werner, 1992, Water Supply Section.
13. WDNR, conversation with Steve Westenbroeck, 1992, Bureau of WaterResources.
14. WDNR Bureau of Planning and Southeast Wisconsin Regional PlanningCommission, 1979, revised 1984, Wisconsin Wetlands Inventory, T10N R21Eand T9N R21E.
15. WDNR Bureau of Endangered Resources, May 1991, Natural HeritageInventory.
16. WDNR, 1992, 4-Mile Radius Population calculation worksheet, developedduring the Preliminary Assessment of Cedar Creek, Ozaukee County,Wisconsin, September 3, 1992.
17. WDNR, Cedar Creek Emergency and Remedial Response file.
18. WDNR, Amcast Emergency and Remedial Response file.
19. International Technology Corporation, June 1988, GroundwaterInvestigation of Volatile Organic Compounds Occurrence in Grafton,Wisconsin.
REFERENCE 1
VOYAGER.9610 De Soto Avenue, Chatsworth, CA 91311TEL: (818) 998-1216 FAX: (818) 709-3658
QUALITY CONTROL PACKING SLIP-MDDFI . - > M >
INSPECTED BY
NAVIGATIONAL EQUIPMENTD TILT STAND & MOUNTING HARDWARE I
POWER I/O CABLE ASSEMBLY
MARINE OPTIONAL EQUIPMENTBULKHEAD MOUNTING KIT & HARDWARE
ACU EQUIPMENTSTANDARD MARINE ACU
HIGH PERFORMANCE MARINE ACU
EXTRA LENGTH ACU CABLE ( , FT.)
D0
DOCUMENTATIONOPERATOR'S MANUAL
OPERATOR'S GUIDE
ADDENDUM
WARRANTYQ1 1015-B
Rp:MKMlirU, the F1IWT START procedure necdo to ho donn only once.Krom tlion on, n Imply turn on the power switch nnd w.iit lor thonumbers to atop flashing on nnd off.
2.2 NORMAL STAHT-UP
Turn power ON. The display will chow I1ATTERY TIME ur.r-il out of20.0 hours. rrosn tho L/L key to r.how present. pon 11 ) on latitudennd Longitude, nnd wait for tho dir.play to stop flashing. (Aboutthree mlnuten).
2.3 DISTANCE AND SPEED FORMAT SELECTION
Wlion tlio Flrit Stnrt proi-eduro In pot formed, Mm null In nnto-in.it Icnlly not to illnplny In nnutlcii) inllon nnd niuit 1i- . i I ml ion pr?ihour (knotn). To change the distance and speed dJr.plnys, pronnthe ALERT/SETUP kny twice, to get the "TO SEE SETUP DISPLAYSI'HESS t" dir.play. Then press the + key several timc-r., until tho"DISTANCE AND SPEED FOHMAT" display comes up. To f-'hiinqo theSportNav to kiloraoters nnd kph, press the CLR key, followed bythe DNT key. Repeat this procedure to change the dlr.plny tor.t.itute roller. ;ind mph. All displayr. and inputs, r,m:li ns Alerttrigger ranges, will now be in the units chosen. Memory will belost if battery changes are not accomplished within 4 minutes.
2.4 SELECTING DISPLAYS
The SportNav's eight display keys are located beneath its displaywindow. They are labeled with various descriptions of informationthat can be shown by the loran.
ULTD
WPULWPTD
TIMETEST
BATTALERT
S/CSNR
CT/TGDI
ALERTSETUP
BATTTIME
R/BTOFR
GOTOSAVE
•4.NW
SE
Notice tlint the doncript lonn of Information are loi.Mtcii on thetop and bottom portion of each display key. The information onthe keys can be shown on the loran's display depending on thenumber of times you press each key. The information on the topportion of a display key can be shown in the display window by
18
SECTION 4
THE L/L / TD KEY
Tha displays under the VL / TD k«y indicate present position inlatitude/longitude and time differences.
4.1 PRESENT POSITION IAT/LON
Upon pressing the i/l, / TD key once, the following display willappear:
LOH
•" ': *""•"'
>.«.« i
The latitude and longitude coordinates of your present positionwill be displayed. Your position is shown in degrees, minutesand hundredths of minutes. In this example, the loran is at 34degrees, 13 minutes and 29 hundredths north latitude; and 118degrees, 35 minutes and 52 hundredths minutes west longitude.
33
4.4 SNR AND MODE EVALUATION
At this point, you might be asking, "How do I know if my loran i«receiving a good loran signal or a poor loran signal?" Bypressing S/C / SNR twice, you will see the display that helpsinsver your question.
Ml 2ft.qq
This display shows three pieces of information relating to thequality of lorun recaption in your area and therefore allows oneto evaluate tl>u loran1 s receiving capability at any particulartime.
The top left side of the display shows the loran's tracking node.The tracking mode is most commonly used as an indicator to showvhen the loran is ready to be used after it's turned on. In thisexample, the loran has obtained reliable loran signals and isready to use, thuu the value 666 is shown. If a number less than666 appears, the: loran is not ready to be used. 1C you are notlooking at this display and the loran is not ready to use, thedigits on the loran display will blink on and off to warn you notto use the machine.
To the right ot the mode number is the accuracy number (ACC).The accuracy number is based upon the geometry of the lorantransmitters and reflects how close you will probably come toyour destination when your loran thinks it's finally arrived atthe destination. In our example above, accuracy is 158 feet. Inother words, when the loran showu that it's arrived at a desti-nation, you're probably within 158 feet of the place you weretrying to get to.
The accuracy number is based only on the geometry of the receiverand loran transmitters, and is a fixed number at each location.In most arc.is the accuracy number will rjngo from 100 to 400feet.
35
Beneath the mode and accuracy readings, three numbers are shownwhich are called Signal-To-Noise Ratio (SNR). Signal-To-Noiseratio is a comparison between the amount of the loran signalbeing received and the amount of interference (noise) beingreceived as a result o* other electrical sources on the boat orin the atmosphere. «. **"
Since the loran operates from signals sent by three radiotransmitters, there are three SNR numbers, one fcr each radiotransmitter. The three radio transmitters are referred to as the"Master," "Secondary *1," and "Secondary *2." The SNR for eachstation is located respectively on the lower half of the displayreading fron left tc right.
MEASURED S?.~R SIGNAL QUALITY
99 Receiver will settle within 3 to 5 min.
70 Receiver will settle within 5 to 8 min.Operation very reliable.
30
In our exanple, the SNT. for the Master station is 86, the SNR forSecondary *1 is 93, ar.i the SNR for the Secondary -2 is 94. Aspreviously noted, SN'Rs can be used to see if ether electricalequipment on your boa: is affecting your loran's reception. SNRnucbers will decrease if on-board interference is encountered.If on-board interference is suppressed to a ninirun, SNR numberswill be shown at higher values. The SNR values in the SportNavcan range from 0 to 99. Suppressing on-board interference isexplained in Section 1 of this manual.
Following are two charts in which to evaluate signal reliabilityas it relates to differing SNR values.
SNR
0-16
17-32
33-99
OPERATION
Poor
May have errors
Highly reliable
36
Receiver will settle within 10 rain.S i g n i f i c a n t probability of error,minimum S1IR for moderately reliableoperation.
15 Receiver will not settle reliably.Navigation displays will flash most oftime. Low SNR indicator will be onintermittently. The SNR indicator islocated in the display of presentposition.
Receiver having difficulty tracking weaksignal. Probable cycle error, low SNRindicator continuously on.
4.5 WARNING INDICATOR
Keep in mind, when the digits on any display are flashing, theinformation the isran is showing may be in error. DO NOT USE ANYDISPLAY FOR NAVIGATION UNTIL FLASHING STOPS.
37
4.6 1-ODAM SICNAI, COVKRAGK AND ACCUHACY
'I'll i r. nor-.t-| on provide-, f l o t a i l o d ai ' t -urnry i -h;nl ' ' . |<ir I In-runt l n>>n l i i | Un i t ci l ; ; t . \ t<v : .
nn.I.M HOI m,, I i Mini I t I nii'i yniii lni.'iii w i l l nut iim.il I ' - . i I I y • Minimi .•< M1 t i l * I t -1 11 Mill | M IM M It. w i l l Tit MM | fir > It (Mil Jll <W I I <<• y Mil W I t It t i l '1 Illl X; I
accurate information possible. The Automatic Transmitter.lelection program (ATS) in the SportHav makes its choice based ongeometry and expected signal strength.
The f o l l o w i n g (.-li.irts chow wh.it m; i . i tc>r and socomlar y t T . inr :m I 11 rrpnthe .'Iport Niiv w i l l choor-r> in tlio font i nrntal Un i ted . ' I t . i ton ,in>li'l I J'.liiMT nii^.i:-.. 'Vlioy nlco r.liow nxpn-l nl position I i-pi-.i t .ib I 1 i 1 yin tlio name ;irea j n clo.ir wn,«Hior, ancj in I huiulrrstoi mc'nnclit ioiin . Hojinntabi 1 i ty mo;in«; thn v;ir) ntion Irnm d.iy t e> rlny Int hr- pn.'iition rradlng ot the ti;w Irj;it nr nt a f ixed | > o r : i l ion. Inother wordr., \i your lot.'in f:;ui nhow you how to r e t u r n to wi th in100 feet ot <T place that i t 's been before, repeatabi l i ty is 100feet in that area.
38
REFERENCE 2
ISSN 03&4-5304
CLIMATOLOGICAL DATAANNUAL SUMMARY
WISCONSIN
1990VOLUME 95 NUMBER
c*l Or c^ . C0x
'I C E R T I F Y T H A T THIS IS AN O F F I C I A L P U B L I C A T I O N OF. THE N A T I O N A L O C E A N I C AND A T M O S P H E R I CA D M I N I S T R A T I O N ( N O A A l . I T I S C O M P I L E D U S I N G I N F O R M A T I O N F R O M W E A T H E R O B S E R V I N G S I T E SSUPERVISED BY N O A A / N A T 1ONAL WEATHER SERVICE AND R E C E I V E D AT THE N A T I O N A L C L I M A T I C DATAC E N T E R ( N C D C 1 , A S H E V I L L E , N O R T H C A R O L I N A 28801."
D I R E C T O RN A T I O N A L C L I M A T I C D A T A C E N T E R
noaa NATIONALOCEANIC AND
ATMOSPHERIC ADMINISTRATION
NATIONAL NATIONALENVIRONMENTAL SATELLITE. DATA CLIMATIC DATA CENTER
AND INFORMATION SERVICE ASHEV1LLE NORTH CAROLINA
REFERENCE 3
REPORT ON THE STATUS OF THE WDNR's INVESTIGATION INTO THE PCB CONTAMINATEDSEDIMENTS ASSOCIATED WITH THE CEDAR CREEK, IN THE AREA OF CEDARBURG,OZAUKEE COUNTY, WISCONSIN.
By: Timothy R. BakerWisconsin Department of Natural Resource*Solid WasteSoutheast District1990
REFERENCE 4
DISTRIBUTION OF POLYCHLORINATED BIPHENYLS IN CEDAR CREEKSEDIMENTS AT CEDARBURG, OZAUKEE COUNTY, WISCONSIN.
by Will Wawrzyn and Robert WakemanWisconsin Department of Natural Resources
Water Resource ManagementSoutheast District
REFERENCE 6
WISCONSIN DNRCEDARBURG GROUNDWATER INVESTIGATION
EXISTING CONDITIONSREPORT
E N G I N E E R S
REFERENCE 7
LDoo
ooCO03
Q
REFERENCE 8
,-1-851 CHARACTERISTICS OF THE POPULATION
General PopulationCharacteristics
WISCONSIN
U.S. Department of Comme<ceBUREAU OF THE CEN^S
of Natural Resource*If New Facility
ORGANICSForm 4800-6 Rev. 2-88
REFERENCE 10
Bill To: 53 Solid Waste Q Hazardous Waste Q Wastewater
I D Point/ . FiekNumber " " " " Well* C^WJL NoT r\ .
OCollection 0^ / / £ /^± TmK J_ 2 . , ? [
M M D D Y Y H H M M
,. J W1S.DEPT. OF r-'TURAL RESOURCES-SBI0*1 2300 N. DR M.L. KING JR. DRIVE?eP°rt P.O. BOX 124361 o: MILWAUKEE. Wl 53212-0438
S W 0 2 5Account
PnlWlAHHy f*\4<K- LCVl»V>A.Vs
Check any appropriate:
_ S Split X. E Enforcement B Field Blank
_ Z Surface Source _ T Treated
Concentration
Gasoline
Fuel Oil #1
Fuel Oil #2
. Priority Pollutant ScanJNon-VOC)
Dieldrin
o.p DDE
p,p DDE
o.p DDD
p,p DDD
o,p DDT
p.p DDT
c-Chlordane .
t-Chlordane
c-Nonachlor
t-Nonachlor
. H. Laessig, PhD, Director'isconsin State Laboratory of Hygieneadison, Wisconsin 53706
PI Water Supply fl Spills |~| Cthe
i f *\ u ivuuief J •*• . ,. , Coimry *• -t w fn^o u) S * O
P.O. or ^ * iCity \f Cd fl r DULV* 4
•*• v^U 1 S+ 1^ A* CeA I
A«r ta'^'iv^e, AP *-4P1J r\t Ofc 1
X. MW Monitoring Well _ EF Effluent _ OW Waste
_ LY Lysimeter _ IF Influent
LE Leachate SO Soil >*^^V
SB Sediment OI Oil ( ^VV/f )
_ SU Surface Water _ SL Sludge V^X
_ PW Private Well _ OT Other
Water System Type (Water Supply Use ONLY)
M Community- Sample Type:Municipal
_ O Community-OTM _ W Raw Water _ V if New Well
N Non-community I Miscellaneous Distribution
P Private
X Non-potable
Aldrin
Endrin
Hexachlorobenzene
Alpha BHC
Gamma BHC
Methoxychlor
Toxaphene
H i I »' I £" , ft /flOla t*K)TJ I O^u^ole /^l
t'T^wKS <?rC. ^ f« i l<fc l* . £,£// (¥><r)fiTo </P^e?v>viI*>« IT G**lvl',t is ttftmfn*/.
7 T
. .j -j -p.. - ... .. •- —
Date Received -- ^Til^j^riOTi*;^AndSunifleNo... 8g"9(§Pft°^3':p * ^ 1589
Date Reported
REFERENCE 16
0 - 1/4 = 1/6 C + (5 x 3.04) + 5/6 C + (17 x 3.04) = 2318
1/4 - 1/2 = 3/6 C + (123 x 3.04) = 4877
1/2 - 1 = 1.5/6 C + (397 x 3.04) = 3458
1 - 2 = 1/2 G + (600 x 3.04) = 6014
2 - 3 = 1 / 2 0 + (1,639 x 3.04) = 9173
3 - 4 = 1,800 x 3.04 = 5472
TOTAL = 31,312
C = Population of Cedarburg = 9005G = Population of Grafton = 8381
from 1985 Public Water Supply Data Book
3.04 persons per household
from 1980 Census of Population
REFERENCE
INTERNATIONALTECHNOLOGYCORPORATION , ^ ^ ^
June 1988Task Option IV Technical Report
Ground Water Investigation of Volatile
Organic Compounds Occurrencein Grafton, WisconsinWDNR Project No. 8707-14Presented To:
State of WisconsinDepartment of Administration
Division of Facilities Management
Bureau of Administrative Services
Madison, Wisconsin
RESPONSIVE TO THE NEEDS OF ENVIRONMENTAL MANAGEMENT
P.A.Narrative
Site Name: Cedar Creek
Site Location: SE1/4, SE1/4, Sec 27, TION, R21E
Cedarburg Township
Southeastern District
Pre-29.67
HRS Score: Pro-42.49
Hwy 57 and County T
City of Cedarburg
Ozaukee County
Site Geology/Hydrogeology; The Quaternary deposit is End Moraine.
Its surface is comprised of soils from the Hocheimsisson-Casco
Association. These soils are well-drained and have a subsoil of loam
to clay loam. They are underlain mainly by outwash and lake-laid
deposits which result in stratified sand and gravel; on uplands and
terraces and in lake beds. The Quaternary deposit extends down to
about 40 feet and lies above the following geological formations:
undifferentiated Silurian Dolomite (40-545 ft); Maquoketa Shale
(545-700ft); Ordovician Dolomite (700-900 ft); and, St Peter's
Sandstone (900-1100 ft).
There are 3 aquifers found within the formations listed in the
preceding paragraphs. The first two, the Sand and Gravel and the
Niagra, lie above the Maquoketa Shale, and are considered to be
interconnected because there is no confining layer separating them.
The third aquifer, the Sandstone, lies beneath the Maquoketa Shale.
2.
It is considered to be interconnected to the first two due to the fact
that the City of Cedurburg draws water from it and the Niagra aquifer
concurrently. The population using groundwater within 3 miles of the
site is 22,641.
Groundwater movement in the watertable system is east while in the
artesian system it is southeast, toward the City of Milwaukee.
Physical Conditions of the Site: The Cedar Creek watershed is
located in the Milwaukee River Basin. It flows south by southeast
through Washington and Ozaukee counties for approximately 31.5 miles
before its confluence with the Milwaukee River downstream of the City
of Cedarburg. The average stream gradient is 9.6 ft/mile.
The creek is classified by the WDNR as a Full Fish and Aquatic Life
Stream, capable of supporting a diverse fish and aquatic life
community including warm water sportfish. Recreational uses include
both full and partial body contact forms such as fishing, hunting,
swimming, wading and a variety of aesthetic uses such as siteseeing
and wildlife observation.
The site is a 5.7 mile stretch of the Cedar Creek which runs through
the northeastern portion of the City of Cedarburg. Along this section
there are instances of both municipal and industrial stormsewer
discharge to the Creek. Historically, 3 of the industrial discharges
have been the Aracast/Meta-Mold Company, and Brunswick-Mercury Marine.
Plants //I and #2.
3.
The Meta-Mold Company manufactures cast aluminum products, circulating
noncontact cooling water around turntable, diecasting and compressing
machines. Wastewater from this process is discharged to the
stormsewer system. Mercury Marine Plant //2 is an aluminum diecast
plant. Its stormsewer discharges come in the form of wastewater
generated from a die cooling system and from noncontact cooling of
hydraulic oil and an air compressor. Mercury Marine Plant //I does
machining and finishing operations, producing parts for Mercury Marine
Motors. Stormsewer outfall includes discharges of noncontact once
through compressor cooling water, footing drains, rinse water
(containing small amounts of biodegradable soap.), chiller condensate
and roof drainage.
Substances of Concern; The Meta Mold Plant was inspected by Frank
Munsey, a Southeast District engineer, in November of 1974. Samples
taken at that time showed concentrations of PCB's in the plant's
stormsewer manhole (335 ppb) and in creek sediment samples taken near
the sewer outfall (lab results not in file). The hydraulic fluids
used in the diecast extremely high concentrations of PCB's (3,800 to
250,000 ppm).
It is believed that either the contaminated fluids leaked into the
cooling system and then were discharged to the sewer system, or that
oil and grease which spilled on the plant's floor were washed through
floor drains and discharged along the cooling waters.
4.
In 197576 the company substituted the hydraulic fluid in its 5 diecast
machines with non PCB Fluid. A compliance survey performed in 1975 by
Gerry Jarmus of the DNR staff showed a reduction of PCB's in the
plant's effluent from /0076mg/L in 1974 to .0029 mg/L in 1975. The
machines fluids, however, still showed PCB contamination, possibly due
to residues from the old oil. The Company was granted a WPDES permit
containing special conditions addressing this situation and other
minor problems in 4/16/87.
In addition to the DNR's WPDES permitting activities the plant also
come under the scrutiny of the District's Hazardous Waste Section and
the EPA. A site inspection performed by the Versar Corporation, an
EPA contractor, in December of 1981 found PCB's in the fallowing
locations and materials: a drum containing waste oil; dry floor
absorbant; sediment; soil and trim presses. According to a Hazardous
Waste file memo (from Tom Sheffy to Bob Krill, 2/24/82) EPA officials
were concerned that the materials would be illegally dumped if the
company was served a nonconformance notice. Finally, another memo in
the Hazardous Waste File (unsigned, 2/25/82) reported that the
company had for some time been using oil from a brittany spin casting
machine to oil roads on the property. Lack of further documentation
would seem to indicate that the Department decided not to follow up on
these matters. The company's name was changed from Dayton Malleable
Inc, Meta-Mold Division to Amcast Industrial Corporation, Meta-Mold
Division sometime after 1980.
5.
The connection between the discharges of wastewater form the Mercury
Marine Plants and contaminated sediments in the Cedar Creek is not
well documented. The following paragraphs briefly summarize the
available information.
The company had applications for discharges to Cedarburg's municipal
sanitary sewer on file with the Chicago District Corps of Engineers as
of June 29, 1971 (whether they were issued WPDES permits in 1974 and
compliance monitoring surveys were performed in 1976. A visible sheen
on plant number one's wastewater discharge was noted at the time of
the survey, abatement procedures were recommended, and in 1977 another
compliance survey found the plant to be in compliance with its permit
conditions. None of the lab analysis documentation resulting from the
survey samples indicated that PCB's were one of the test parameters,
however.
A letter sent to a plant //I representative from A. Glor (1982)
indicated that there was reason to believe the facility may have been
used for hazardous waste treatment, storage, or disposal. There
wasn't a documented response from the company to the letter, probably
because both plants had ceased operations in 1981. Their WPDES permits
were revoked in 1983.
6.
Site Status; In their study, " The Distribution of Polchlorinated
Bipheny's in Cedar Creek Sediments," W. Wawrzyn and R. Wakeman, of the
DNR, have approximated the total amounts of PCB contaminated sediments
to be 165, 267 cubic yards, with a length-weighted-mean concentrations
of 541. ug/g. Their study also indicated that the highest PCB
concentrations typically were found in those sediments immediately
downstream of historical point source PCB discharges.
Department analysis of edible Cedar Creek fish tissues in 1984 showed
PCB concentrations ranging from 1.4-82 ug/g. The USDA's recommend
maximum level is 2 ug/g. Potentially, other types of animals
(including humans could be exposed to the PCB's through consumption of
aquatic biota, direct assimilation of water, or dermal contact.
The site has not been added to the CERCLA list because the Department
would like to have it cleaned up as soon as possible. It is believed
that if potential responsible parties know the site is on the CERCLA
list they will not get involved in a clean-up effort until the EPA
defines the extent of their participation in that effort.
Negotiation Status; The DNR is currently searching for potential
responsible parties.
Notes - HRS Worksheet, Cedar Creek
A. See document #1 p. 14. Assumed that greater quantities might be
found with further investigation but not enough to score a value
of 2 here.
B. Existing documentation indicates that the PCB's were deposited
in the Creek via wastewater streams discharged to storm sewers.
C. There were no containment procedures.
D. There were no containment procedures.
E. All the aquifers serving people within a 3 mile radius of the
site were considered to be interconnected (see PA narrative for
further explanat ion).
Population of Cedarburg: 9,005
Population of Graffton: 8,381
19,386
1 mile: 11 + 14= 214 (3.8)
2 mile: TH.4.+62= 562 (3.8)
3 mile: Hrl4 1 +17= 607 (3.8)
5255
Total Population within 3 mile radius=
17,386 + 5255= 22,641
F. Used Hydrologic Investigation Atlas to determine
29" precipitation 39.3" Precipitation
- 8" runoff -12.9" Runoff
-21" Evapotranspiration -25.2" Evapotranspiration
0" Not Precipitation 1.2" Net Precipitation (pro score)
G. The PCB's are in the creek sediments hence they must be under the
level of the saturated zone.
H. Deposit 1: Quaternary, End moraine, till, stratified Depth
sand and gravel 0-40
Deposit 2: Silurian Dolomite, undifferentiated 40-545
Deposit 3: Ordovician Maquoketa Shale 545-700
Deposit 4: Ordovician Galena Dolonite, 700-900
Galena & Platteville formations
Deposit 5: St. Peter's Sandstone 900-1100
Deposit 6: Precambrian Crystalline Rock unknown
I. 11 x 3 x 18 x 49 = 29106
(29106 7 57,330) x 100 = 50.77 = Sgw
45 x 19 x 49 = 41,895
(41,895 : 57,330) x 100 = 73.08 = S2gw
45 x 18 x 6 = 4860
(4860 - 64,350) x 100 = 7.55 = S2sw
45 x 19 x 6 = 5130
(5130 '- 64,350) x 100 = 7.97 = S2sw
(50.77)2 + (7.55)2 = 2634.59
2634.59 inverse squared = 51.33
51.33 - 1.73 = 29.67 = Pre scoret
(73.08)2 + (7.97)2 = 5404.21
5404.21 inverse squared = 73.51
73.51 : 1.73 = 42.49 = Pro score
References - Cedar Creek
1. Distribution of Polychlorinated Biphenyls in Cedar Creek
sediments at Cedarburg, Ozaukee County, Wisconsin. By Will
Wawrzyn and Robert Wakeman DNR-SE.
2. Hydrologic Investigations Atlas (HA-432) E. Skinner and R. Borman
(1973) Published by the U.S.G.S.
3. Municipal Well Construction Reports.
A. Residential Well Construction Reports.
5. 1985 Public Water Supply Data Book. Eric Syftestad, DNR Public
Water Supply Sectin.
6. Washington - Ozaukee County Land Atlas and Plat Book (1983).
7. Soil survey - Ozaukee County USDA and the University of Wisconsin
(1970).
8. Topo Maps: Five corners, Cedarburg, (1971). Scale 1:24,000
9. Compliance Review Sheet - Industrial completed Robert Chiesa
8/23/77.
TECHNICAL MEMORANDUMSTORM SEWER CLEANING AND SEALING PLAN
CEDARBURG, WISCONSIN
PREPARED FORMERCURY MARINE
FOND DU LAC, WISCONSIN
PREPARED BYRMT, INC.
APRIL 1994
•VrRMT, INC.-MADISON, Wl
744 HEARTUND TRAIL - 53717-1934
P.O. Box 8923 - 53708-8923608/831-4444 - 608/831-3334 FAX
14012 02 OOOO.RTB ruck03»r;j|
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
TABLE OF CONTENTS
Section Page
1. INTRODUCTION 11.1 Background 11.2 Purpose and Scope 1
2. EXISTING CONDITIONS 2
3. STORM SEWER TRIAL CLEANING 73.1 Field Procedures 73.2 Trial Cleaning Results 7
4. PROPOSED FULL-SCALE CLEANING METHODS 104.1 Preparation 104.2 Available Technologies 104.3 Waste Minimization 11
5. DOCUMENTATION SAMPLING AND REPORTING 125.1 Wipe Samples 125.2 Stormwater Sampling 125.3 Documentation Report 13
6. DISPOSAL OF CLEANING RESIDUES 14
7. REFERENCES 15
Ust of Tables
Table 1 Summary of Previous PCB Storm Sewer Sampling Results 3Table 2 Summary of PCB Wipe Sample Results of Trial Cleaning 8
List of Figures
Figure 1 Manhole Locations - Plant No. 2 to Ruck Pond 5Figure 2 Storm Sewer Manhole No. 061120 6
List of Appendices
Appendix A Material Safety Data Sheet - 'Less Than 10'Appendix B PCB Wipe Sample Analysis ReportsAppendix C Plant No. 2 Stormwater Investigation
14012.02 OOOOiRTB mcK0329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
Section 1
INTRODUCTION
1.1 Background
Mercury Marine (Mercury), a division of the Brunswick Corporation, is planning to clean the
storm sewer located between its former aluminum die cast facility, Plant No. 2, and the outfall
of this storm sewer to Ruck Pond, a length of approximately 900 feet. Historical samples of
residue in this storm sewer contained polychlorinated biphenyls (PCBs). Mercury plans first to
verify that all potential hydraulic connections between the building and the storm sewer are
disconnected or blocked. Mercury then plans to clean the storm sewer prior to the sediment
removal action project in Ruck Pond.
1.2 Purpose and Scope
The purpose of this document is to provide the Wisconsin Department of Natural Resources
(WDNR) with information concerning the methods that Mercury and its subcontractor will use
to clean the storm sewer and the method of documentation that will be used to verify that the
storm sewer has been cleaned to the extent practicable. Appendix C of the document
(prepared by Blasland, Bouck, and Lee, Inc.) describes the methods that Mercury Marine and
its subcontractor will use to seal the hydraulic connections between Plant No. 2 and the
municipal storm sewer. The following items will be performed as part of the scope of services
included in this project:
• Seal the lateral connections between Plant No. 2 and the municipal stormsewer.
• Observe and document full-scale cleaning of the storm sewer, and performwipe sample testing and simulated storm event testing.
• Prepare a documentation report discussing the full-scale cleaning and thedocumentation sampling results.
14012.02 OOOO:FTTB:rucK0329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
Section 2
EXISTING CONDITIONS
Prior to the remediation of PCB-containing sediment present in Ruck Pond, Mercury intends to
clean the storm sewer pipe beginning with the lateral storm sewer pipes that connect Plant
No. 2 with Manhole No. 061120, located on St. John Avenue, and continuing east to the outfall
at Ruck Pond. Historically, Mercury and others discharged water to Manhole No. 061120.
Samples of residue or pipe material, collected by Strand in 1992 and by RMT in 1990, have
indicated the presence of PCBs at this location. A summary of the results of the PCB
sediment sampling from Manhole No. 061120 as well as from the sampling at other manholes
located between Plant No. 2 and Ruck Pond are presented in Table 1. Figure 1 illustrates the
location of the manholes in relation to Plant No. 2 and Ruck Pond. Figure 2 illustrates the
lateral and mainline storm sewer pipes at Manhole No. 061120.
14012.02 0000:RTB:ruck0329
su
Sample I.D./Constituent
ypi®iiiiiiii !iiiiiAroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
M li i i &;v::--::V: .;Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
i l i ^ ':Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
v:Mi »iM;W6 h:":v :. :rAroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1 260
MMARY OF PREVIOUS
-W.i- ' .'WJfc
PCB Cone, (mg/kg)•••:•••: ••.-:-•; ;-- •: . : • i*:;. : __ ":-:-:x '•••'•'-•'•••_ •• '•.'••• •' ': ':' '•' :"'Y'.'!"
ND
0.14
--
-
-
--'. I'!1:1:1'1:'"":.: :;••• i:-l1:: :-::-' •!•••' : " '.':'.'? '. ''.' '..' y • •••'•'•••••.•.'':•'
-
-
-
--
^'^xi-^rv^r-ryvV;.?;;.'^;
--
-
--
-
TABLE 1
PCB STORM SEWER £
^Hic- ^ -. .--'.Sample Matrix
•-[' y:i;!Vi:'"'-'': :-:::'."- '•.'•••••-.''. :|!"::v::?!.Vl:' ""••::'': :;: •-:• •• : '•• : : :"
Sediment
Sediment
Sediment
Sediment
^••'I'-:=:!'-'^^:-:^\i.'.l:'v.------
-x".1.".:-1 ':"i':':Vi;i|1T:; •'• v! : •'• ••'•' •Xv" |:':::"'.:: \ ':! •••'.'.' '..""' '" "
-
--
-
-" .' .' ! '' ?.1':: :rl • y? '• '-:^ *2? ••'-":•!-!:•-' :.•:''. ""'. •'•'
-
--
-
-
SAMPLING RESULTS
.^^•^^•' ' gtoa
PCB Cone, (mg/kg)".' -::. .1"1.:: ;•- :il->-'- • • . "- '"":: : " '.'' '.'''?••' ' ' :;'/" 'I1"1;1"1'1.'111 ' : •
NO
6.2
ND
62
' • ' .•v:;:. • ' • ; , ; ; "• ' : "•••• ;
ND
ND
0.98
ND-. •:•. . . : "; :•"•"•'•' \* ' y •"•' •• •• ... ..-..•..!.- " " .. ' . '. '
ND
ND
ND
4.8: •' .' '.-. ' " :' ' '•' ' '"""''' """ ' •"•'•:.' '••• '• : • •-•!• • : : . '•.' '. ""' '" "
ND
4,400
ND
29,000
iid ' f 1992 ': : : • v?v • ~i;s: 'i'S;i;?s i~: ?:' •'•::--';'':'iS'S'': •
Sample Matrix
:• 'i': ' ';'.^ i ' ^/i |l|||||iSiH:::Gravel and concrete chips
Gravel and concrete chips
Gravel and concrete chips
Gravel and concrete chips
.;..;; \.:' •"•..••.Jl. S. .rir.'S liv- '!'.'.' .
Gravel
Gravel
Gravel
Gravel': . • • '..':'.".'. .; • "-'--.-i •;:••••:••.•:•:••:•-•:•. .-• ! • • " - . ' ! ' "
• .•.-.:.'.'.: - - '::.:yv:'.-.-'-.-.'.:. .':'::.:.'.:. ." : • • -
NA
NA
NA
NA
- ;. V.-'-' :"' :: ?&::f:f;;;:'t:::;:- '::'}•'.
NA
NA
NA
NA
14012.02 0000:RTB metc0316.t
TABLE 1 (CONTINUED)
SUMMARY OF PREVIOUS PCB STORM SEWER SAMPLING RESULTS
Sample I.D./Constituentv;:->::;:* •:••••'- \ • "•• r'-: ;• •'• Iwlr <$&$>: >£ w,> '. ;-: ••
PCB Cone, (mg/kg) Sample Matrix
..:•:•;•• '=' •-• , ; , ;. -. :S fid-. ^a).,;: -: ~ ;-
PCB Cone, (mg/kg) Sample Matrix
j :p-S t i: v 7 ••: ?^ .:..;??;'."::••: •;;."• './• :• :'::' • '. ':^Yf^ % :.-:: = ': f ••, 3r: ;:' ' :" ":' :i:; ; -.:• •:.:'•":; ';. • '.' : ;. •• • •- :".^ ''\ ' '•• '" • ' • :WS%$ 18Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
------
--
-
-
-
xlKili ji lliMi j v^ !o i '. ; v .'x :: •;• . •• -k- ••:. ;r: .y:;:;.;;: •^•- :" :Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
-------
-
-
-
--
38
ND
ND
170
Gravel and silt
Gravel and silt
Gravel and silt
Gravel and silt
• • • •' .. " . : . . . ' • • . • • • • " • ' . . . . • • '•".';• ':''-::"::.?:::-:-:' .•.::.::'.-.':-!:\-:-v'' .••;::-- •:'••'• '• . . . • • .......v ' . . . . : . . • ' • •;.; . ..:.-•:••:•.: : ::?:';.•:;. .:.-i:>.::i:
:::: ••:•:•:•••• ::•:••;'.':'... •:.:'.-.-
ND
ND
ND
0.32
Sand and gravel
Sand and gravel
Sand and gravel
Sand and gravel
• mmi$®m , '^ ' : • ' • • : '- ; ' :"-v" :; r •; I ;:i :r ::v^ ;>?• :;: A;- .':' ;v^ V^^ Jf ;•..:.:' '.. v; : ' . :' ,• ::' •'• /• ' ' , , - ' ; : ' " • ': • V. SM '' : •••Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
,O|iii$ .::':-:Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
--------
31:-: :':.;'':-;- :••'.':' ' "• ' '..':''-----
-
-
--
-
;.' /.. . • .••'.•'": VV ••:;.'.: :..;.;•.•: "'•'•' '.'• .
-
--
-
-
ND
ND
ND
0.88
Sand and gravel
Sand and gravel
Sand and gravel
Sand and gravel
••' v ; -:. '. ••• • • • • : ' . - : " ' " " ;. I • : ' --1 .;• [ . $:SJ::PMr . .0.37
ND
ND
1.7
Sand and gravel
Sand and gravel
Sand and gravel
Sand and gravel
NOTE:
NA Not available - sample matrix not listed in the Strand report.ND Not detected.
14012.02 0000:RTB:m«c0316 t
66*1:21
KELCHCORPORATION
PLANT NO.2
LEGEND
8 STORM SEWER MANHOLE
STORM SEWER MANHOLE AT PLANT NO. 2• CATCH BASIN
STORM SEWER LATERAL
MUNICIPAL STORM SEWER061 12O MANHOLE NUMBER
I— PLUGGED LATERAL
CLEVELAND ST.
OUTFALLRUCK PONO
i 061116
APPR0X/SCALEt '1F2601
MANHOLE LOCATIONS
we.
OWN. BY: DJW/TBM
APPROVED Bf: 5AM
DATE: APRIL 1994
PROJ.i 14012.02
FJLE /
o C.FIGURE 1
?§
o a 10
I
24" LATERALFROM DOERR/v
KELCH N
\
24", MAINLINE ,
FROM1 MANHOLENO. 061121
36" LATERAL FROMPLANT NO. 2 &DOERR/KELCH
6" PRIVATE LATERALFROM PLANT NO. 2
27" MAINLINETO RUCK POND
MANHOLE OPENING
STORM SEWERMANHOLE NO. 061120
MERCURY MARINECEDARBURQ, Wl
(NOT TO SCALE)OWN. BY: BIG
APPROVED BY:
DATE: APRIL 194
PROJ. / 14012.02niz j 0201
APR 2 fi 1QQ4FIGURE 2
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
Section 3
STORM SEWER TRIAL CLEANING
3.1 Field Procedures
The objective of the trial cleaning was to evaluate potential cleaning solutions for full-scale
cleaning of the storm sewer. Trial cleaning field activities were performed on April 5, 1994, at
storm sewer Manhole No. 061120. The manhole was entered using confined space entry
procedures. Cleaning was performed on the first foot of the 27-inch concrete pipe leading
east from the manhole to Ruck Pond (Figure 2).
Water approximately 2 to 3 inches deep was present in the 27-inch pipe during the cleaning.
RMT was unable to restrict this flow of water to sufficiently dry the bottom of the 27-inch pipe;
therefore, trial cleaning was performed just above the water line on each side of the pipe.
This area contained a thin layer of soil smearing, which likely occurred during times of heavier
flow in the pipe.
Three areas within the first foot of the pipe were designated as trial areas for the cleaning. In
each area, a different cleaning solution was used; however, the method of cleaning and wipe
sampling remained the same. Wipe samples were collected before and after the trial cleaning
activities to evaluate PCB removal with various cleaning solutions.
Each area was first padded dry with a paper towel. A PCB wipe sample was then taken on a
100-cm2 area to document the existing conditions prior to cleaning. Next, the cleaning
solution was applied and scrubbed with a clean plastic-bristled scrub brush for approximately
2 minutes. Finally, after the area was thoroughly rinsed with water, a post-cleaning wipe
sample was taken.
3.2 Trial Cleaning Results
The three solutions used included tap water, isopropyl alcohol, and a proprietary PCB
cleaning detergent mixed 1:1 with water called 'Less Than 10.' Results of the analysis
(Method 8081) of the PCB wipe samples are presented in Table 2. A copy of the Material
Safety Data Sheet for Less Than 10 is presented as Appendix A. Copies of the laboratory
analytical results for the wipe samples are provided in Appendix B.
7 14012.02 OOOO:RTB:ruck0329
TABLE 2
SUMMARY OF PCB WIPE SAMPLE RESULTS OF TRIAL CLEANING27-INCH PIPE EAST - MANHOLE 061120
(pg/1 00 cm2)
. •: ^S^9ii--S^WS:'••• •• , '.. '•..• .'.' ''.':' wiv" :'.: ::-.'.- •:• •:''::-::> '.-:': : ?.$:£.".££ .•'•'.•:•: •-.-':•:• • . / .::•"...:
Less Than 10 - not cleaned
Less Than 10 - cleaned
Isopropyl alcohol - not cleaned
Isopropyl alcohol - cleaned
Water - not cleaned
Water - cleaned
$:K-:...-\:-j'<tf ''•'•*•:•£• :-::iv
ND
ND
ND
ND
ND
ND
W&Q&ti
h^ fm
ND
ND
.ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
; *«x&r:.:. ."::?
:::*W-''::
ND
ND
ND
ND
ND
ND
ArodferD'•::.":.*m:$:"
ND
ND
ND
ND
ND
ND
(?£jfa&ar-^:,'•&•%$&?..•'&
ND
ND
ND
ND
ND
ND
83
13
130
33
110
62
NOTE:
ND Not detected.
14012.02 0000:RTB:merc03161
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
On the basis of the laboratory results, all of the cleaning solutions appeared to be partially
effective at removing PCB residuals from the surface of the concrete storm sewer pipe. None
of the solutions cleaned the storm sewer to levels that were below detection (i.e., the
estimated quantitation limit). Of the three solutions, the Less Than 10 solution provided the
best analytical cleaning results as well as the best visual cleaning results in the field trial.
14012.02 OOOO:RTB:r\jck0329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
Section 4
PROPOSED FULL-SCALE CLEANING METHODS
4.1 Preparation
Full-scale cleaning of the storm sewer is proposed for mid-May 1994. The cleaning procedure
will take approximately 2 to 3 days. Every effort will be made to try to coordinate this cleaning
during a time of low flow within the storm sewer.
Cleaning is proposed to take place in approximately 200- to 300-foot runs, cleaning from one
manhole to the next downgradient manhole. During the cleaning process, laterals that are
connected to the main storm sewer pipe for the run being cleaned will be blocked off from
flow using a sewer balloon or other similar device. This will ensure that waste liquids
generated in the pipe during the cleaning process remain within the pipe and are not
backflushed into the laterals. The procedure also prevents water from upstream entering the
pipe area that is being cleaned.
Certain laterals from Plant No. 2 that connect to Manhole No. 061120 will be permanently
sealed prior to the storm sewer cleaning. A discussion of the proposed activities is provided
in Appendix C.
Cleaning will begin on the laterals connecting Plant No. 2 and Manhole No. 061120 (Figure 2).
Cleaning will then proceed from Manhole No. 061120 downgradient from manhole to manhole,
until the entire run to the outfall has been cleaned (Figure 1).
4.2 Available Technologies
The application of current sewer-cleaning technology is limited to some extent by the size of
the sewer to be cleaned. The storm sewer pipe diameter varies between 6 and 36 inches.
This type of sewer, due to its limited diameter, could be cleaned by two different methods. If
large quantities of sediment are present within the sewer, a dragline or rodding method is
used. This method physically drags or rods the solid material from one manhole, down the
pipe, to the next manhole. These solids are then removed from the pipe and drummed or
placed in a roll-off box for further analysis.
•(0 14012.02 0000 RTB:rucM>329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
After the majority of the solids are removed, a jet-head pressure-washing technique is used to
further remove the remaining residue present on the pipe. The jet head is simply a high-
velocity nozzle pointed to the sides of the pipe, which causes a high-pressure stream of water
to "scrub" the surface of the pipe. The jet head is started on the downgradient side of the
pipe and propels itself up the pipe with its nozzles, which are pointed slightly to the rear.
Once it reaches the end of the run, the jet head is pulled slowly down to the downgradient
portion of the pipe. This procedure backflushes the remaining solids and residue to the
downstream manhole area where they are removed using a vacuum truck or similar device.
The jet head is powered by a sewer jetter truck, which supplies the pressure to the jet head.
Water with which to supply the truck is either brought on-site or obtained from a city fire
hydrant.
Additives to the water to increase the cleaning effectiveness of the jet head can include
detergents or surfactants. Water may also be used by itself, relying on the pressure-wash
system to be an effective cleaning agent on its own.
4.3 Waste Minimization
The volume of solids generated during the cleaning process will not vary with the method
since no additional solids are introduced during the cleaning process; however, the volume of
water generated during the storm sewer cleaning can vary widely, depending on the
technique used to do the cleaning. One method for possibly reducing the amount of water
generated would be to recycle the water that is generated during the cleaning of the first
length of storm sewer pipe and then reuse that water to clean the next length of piping.
The recycling process would require that PCB impacts to the water be removed prior to the
reuse of that water for additional cleaning. Since it is likely that nearly all of the RGBs are
present on the suspended solids within the water stream because PCBs are hydrophobia, the
removal of the PCBs can be achieved through filtration. During filtration, the water is passed
through an extremely fine screen, usually only a few microns in diameter, which effectively
removes even very fine suspended solids but allows the water to pass through. Suspended
solids that are trapped on the filter are then placed with the remainder of the solid waste
stream.
-|-j 14012.02 OOOO:RTB:ruck032S
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
Section 5
DOCUMENTATION SAMPLING AND REPORTING
5.1 Wipe Samples
Prior to full-scale cleaning, RMT will collect wipe samples from the main line leading east from
Manhole No. 061120 to document the baseline conditions of the surface of the storm sewer
prior to cleaning. Following full-scale cleaning, RMT will collect wipe samples at the same
location to evaluate whether residual PCBs remain in the pipe material. Wipe samples will be
taken on the bottom centerline of the 27-inch pipe (Figure 2). If water is present, then flow
from the lines entering Manhole No. 061120 will be blocked briefly to enable testing to occur.
Wipe samples will be analyzed for PCBs using Method 8081.
5.2 Stormwater Sampling
The purpose of the storm sewer cleaning procedure is to prevent future discharge of PCB
residuals present in the storm sewer pipe to Ruck Pond following the Ruck Pond sediment
removal action. To document if residual PCBs are present in the effluent, lollowing full-scale
cleaning, RMT will conduct water sampling of the storm-sewer discharge at the Ruck Pond
Outfall No. 061116. Both 'low-flow and 'high-flow* conditions will be tested.
"Low-flow* conditions will consist of a flow that creates a water depth in the pipe of less than
2 inches. If no flow is occurring, then a local hydrant will be used to create the necessary flow
by first pumping city water into the storm sewer at Manhole No. 061116 on St. John Avenue
and then allowing the water to run the full length of the cleaned discharge run (approximately
900 feet) to the discharge point to Ruck Pond. 'High-flow* conditions will be created by
turning the hydrant to full capacity.
Grab samples will be taken at the outfall location to Ruck Pond. Two grab samples will be
taken for each flow condition 5 and 10 minutes after the start of the flow, respectively. The
water samples will be analyzed for PCBs using Method 8081.
12 14012.02 0000:RTB:ruck0329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
5.3 Documentation Report
RMT will generate a documentation report following the full-scale cleaning and confirmation
sampling and analysis of the storm sewer. This document will present the methods used for
conducting the full-scale cleaning activities, describe the disposal method for the waste
materials generated during cleaning, and present the results of the wipe and storm water
sampling and analysis. The documentation report will include a map showing the location of
the sample points, pictures of the full-scale activities, laboratory data sheets, chain-of-custody
forms, and manifests for the waste disposal.
•) 3 14012.02 OOOO:RTB:HJCKO329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
Section 6
DISPOSAL OF CLEANING RESIDUES
Both solid and liquid waste material will be generated as part of the storm sewer cleaning.
The solid portion of the waste stream will be temporarily stored in a drum or in a roll-off
container in a location designated by Mercury, until the waste can be analyzed for PCBs and
properly disposed. Similarly, wastewater will be stored in a poly tank or similar watertight
container until it can be analyzed for PCBs and properly disposed.
140^02 OOOO:HTB:njckO329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
Section 7
REFERENCES
RMT, Inc. 1990. Results of sampling and analysis for PCBs in manhole 331005, Cedarburg,Wisconsin. March 1990.
Strand Associates, Inc. 1992. Cedar Creek PCB Investigation, Volumes 1 and 2. May 1992.
14012 02 OOOa.KTB'.RJCkO329
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
APPENDIX A
MATERIAL SAFETY DATA SHEET - 'LESS THAN 10'
14012.02 OCKX>:HTB:njck0329
.erial Safety Data Sheet.y b« used to compfy woh
,SHA'» Hazard CommurucslJons»CFR 1810.1200. Sttndart mus b«
tutted tor specific
U.S. Department of LaborOccupational Safety »nd Health Administration(Non-Mandatory Form)Form Approved
OMB No. 1218-0072
B&rrmr f/u on c*ow uwjLESS THAN 10
Bttntc spacw «/• nor pormted I any Jram fa nor ypioaJa. o- norstorrrwdcn fa •vaZa&fe. *» *P«O» nxs* b» mMriead to ixtcato ffvet.
S«ctionlUarutaciurgr'* Kama -. •
CHEMICAL SOLUTIONS INTERNATIONAL CORP.A^omss fNunoar. Si-**. C*y. Su«. and 2JP Coos;
P.O. Box 891185
Houston, TX 77289
(713) 992-3031To«ctXne Number lor trrtorrraljon
(713) 992-3031
^oTstr3S<onatune o< Preparer (oftxraQ ' •• .
Section n — Kszarrfoua Ingredients/Identity Information
KxzarOxs rscwci5c Otfrhical Vjertay; Coovribn Name(«j) ''/ *QSHA~P£L~
LESS THAN 10 is a proprietary formulation vhich contains small anounts of mineral andrs-ic acids and this product should be handled accordingly.
Corollas with OSHA 29 CFR XVIII-1910.1200 Secuc.i u) "Trade Secrets". Containsno hazardous ccnroonents under current OSHA definitions.
Section 111 — PhysicaUChemlcal Characteristics
6 -pc^
Vapor Prmsura (trvn tv
Vapor D*fvmy £>OH - '<
.Same as water
Same as water
212°F
*•
Sp«c.fic Gravir^ (HjO - 1)
W«J^*"rV^ PoifV
SS^t ij
1.06
NA.. - - -
L1SokJCuty in Wnar
Soluble in all ratios, pH is greater than 2.2a.->d Oder
Clear liq- id with medium viscosity and lemon odor.
Section IV — Fire and Explosion Hazard Data
Raaft Port (U«cxxJ U t-i)OX
Flammatia Umi-jNA
L£L UB.
LUdU
Spacai Firt Fitting
Unusual fire a,-<J £xr-oacn Rcarta
<^ectJon V— Reactivity Datajollity Unstable
Stable
-
X
Conditions to Avoid
None known.Incompatibility (Materials to Avoid)
Strong alkalies and caustic materials.Hazardous Decomposition or Byproducts
HazardousPolymerization
May Occur
Will No( OccurX
Conditions to Avoid
None
Section VI — Health Hazard DataRoutes) at Entry. Inhalation? Son? tngesuxi?
Hearth Hazards (Acute and Chronic)EYES: will cause burns, possible loss of sight. SKIN: burns, chapping.
INHALATION: irritation of respiratory tract. INGESTION: severe burns to gastrointestinal
tract^Cardnogenicity:
NilNTP7
Nil1ARC Monographs?
NilOSHA Raoxteed?
NIL
S-gra and Symptoms of ExposureJYES: burning, redness, tearing. SKIN: redness, burns. INHALATION: coughing, dizziness,
nausea. INGESTION: burns on lips, mouth. 'Medical Conditions>neraUy Aggravated by Exposure Consult physician. Emergency and First Aid Procedures. EYES; flush 15
minutes with water. SKIN; wash throughly with soap and water. INHALATION: move to fresh air.
ipply artificial respiration if breathing has stopped.I£ any irritation persists, seek medical attention.
: do nor indure ynmitiny.
Section VII — Precautions for Safe Handling and UseSteps to B« Taken in Case Material Is neteasod or SpittedRemove leaking package- to y^fc. area. FTn«;h uir-h
Waste Disposal Method ' • ... .Any approved method for neutralized acid. Surfactants are highly biodegradable.
Precautions to Be Taken In Handling and StoringAvoid spills, store away from strong caustics and oxidizers.
Other PrecautionsNone in normal shipment, storage and handling.
Section Vlll — Control MeasuresRespiratory Protection (Specify Type)
None necessaryVentilation Local Exhaust
NecessaryMechanical (General)Recommended in confined snaces
Special
Other
Protective Gloves Ey« Protection.Rubber J G
None
None
ogylec; or face shieldOther Protective Clothing or EquipmentRubber slicker suits or aoron. Long shirt hni-i-on«x3 at-W(
<;hiff.
SlUOdHd SISA1VNV 3HdWVS 3dlM 80d
S XIQNBddV
1VNIJ 3NIUVW AtinOd31MIIBdV WnQNVdOWaW 1VOINH031
,MT LABORATORIES 744HwmANDTun MADISO«,WI 53717-1934 P.O. Box 8923 MADISON, Wl 53708-8923 608/831-4444 608/831-7530 FAX
CLIENT: MERCURY MARINE - STORM SEWERPROJECT #: 14012.01SAMPLE #: 4345-002STATION ID: 27E <10 PREMETHOD: 8081WI DNR LAB ID: 113138520
PAGE: 1
REPORT DATE: 04/13/94COLLECTION DATE: 04/05/94EXTRACTION DATE: 04/07/94ANALYSIS DATE: 04/08/94DILUTION FACTOR: 20UNITS: ug/wipe
SEMIVOLATILE ORGANICS ANALYSIS REPORT
COMPOUND
Aroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260
RESULT
83
EQL
20402020202020
CODE
NDNDNDNDNDND
ND - Not detected at or above the EQL.
IMT LABORATORIES 744HMTUNl>T«ii MADBOK.WI 53717-1934 P.O. Box 8923 MADISON, Wl 53708-8923 608/831-4444 608/831- 7530 f«
CLIENT: HERCURY MARINE - STORM SEWERPROJECT #: 14012.01SAMPLE #: 4345-003STATION ID: 27E <10 POST CLMETHOD: 8081VI DNR LAB ID: 113138520
PAGE: 1
REPORT DATE: 04/13/94COLLECTION DATE: 04/05/94EXTRACTION DATE: 04/07/94ANALYSIS DATE: 04/08/94DILUTION FACTOR: 1.0UNITS: ug/wipe
SEMIVOLATILE ORGANICS ANALYSIS REPORT
COMPOUND
Aroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260
RESULT EQL CODE
NDNDNDNDNDND
13 1.0
ND - Not detected at or above the EQL.
Appr
LABORATORIES 744HEARiUHoTiiAii town, Wl 53717-1934 P.O. Bon 8923 MADISON, Wl 53708-8923 608/831-4444 608/831-7530 FAX
CLIENT: MERCURY MARINE - STORM SEWERPROJECT #: 14012.01SAMPLE #: 4345-004STATION ID: 27E-ALC-PREMETHOD: 8081VI DNR LAB ID: 113138520
PAGE: 1
REPORT DATE: 04/13/94COLLECTION DATE: 04/05/94EXTRACTION DATE: 04/07/94ANALYSIS DATE: 04/08/94DILUTION FACTOR: 20UNITS: ug/wipe
SEMIVOLATILE ORGANICS ANALYSIS REPORT
COMPOUND
Aroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260
RESULT
130
EQL
20402020202020
CODE
NDNDNDNDNDND
ND - Not detected at or above the EQL.
MT LABORATORIES 744HEMTUNDTRAIL M*DISON,WI 53717-1934 P.O.Box8923 MADISON,Wl 53708-8923 608/831-4444 608/831-7530FAX
CLIENT: MERCURY MARINE - STORM SEWERPROJECT #: 14012.01SAMPLE #: 4345-005STATION ID: 27E-ALC-POST CLMETHOD: 8081WI DNR LAB ID: 113138520
PAGE: 1
REPORT DATE: 04/13/94COLLECTION DATE: 04/05/94EXTRACTION DATE: 04/07/94ANALYSIS DATE: 04/08/94DILUTION FACTOR: 10UNITS: ug/wipe
SEMIVOLATILE ORGANICS ANALYSIS REPORT
COMPOUND
Aroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260
RESULT
33
EQL
10201010101010
CODE
NDNDNDNDNDND
ND - Not detected at or above the EQL.
) Approval Signat
:MT LABORATORIES 744 HURTLAND TRAIL MADISON.WI 53717-1934 P.O. Box 8923 MADISON,Wl • 53708-8923 608/831-4444 608/831-7530FAX
CLIENT: MERCURY MARINE - STORM SEWERPROJECT #: 14012.01SAMPLE #: 4345-006STATION ID: 27E-W-PREMETHOD: 8081WI DNR LAB ID: 113138520
PAGE: 1
REPORT DATE: 04/13/94COLLECTION DATE: 04/05/94EXTRACTION DATE: 04/07/94ANALYSIS DATE: 04/08/94DILUTION FACTOR: 20UNITS: ug/wipe
SEMIVOLATILE ORGANICS ANALYSIS REPORT
COMPOUND
Aroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260
RESULT
110
EQL
20402020202020
CODE
NDNDNDNDNDND
ND - Not detected at or above the EQL.
. Approval Sigttat
•-
LABORATORIES 744 HEARTLAND TRAIL MADISON, Wl 53717-1934 P.O. Box 8923 MADISON, Wl 53708-8923 608/831-4444 608/831-7530 FAX
CLIENT: MERCURY MARINE - STORM SEWERPROJECT #: 14012.01SAMPLE #: 4345-007STATION ID: 27E-W-POST CLMETHOD: 8081WI DNR LAB ID: 113138520
PAGE: 1
REPORT DATE: 04/13/94COLLECTION DATE: 04/05/94EXTRACTION DATE: 04/07/94ANALYSIS DATE: 04/08/94DILUTION FACTOR: 10UNITS: ug/wipe
SEMIVOLATILE ORGANICS ANALYSIS REPORT
COMPOUND
Aroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260
RESULT
62
EQL
10201010101010
CODE
NDNDNDNDNDND
ND - Not detected at or above the EQL.
RMT TECHNICAL MEMORANDUM APRIL 1994MERCURY MARINE FINAL
APPENDIX C
PLANT NO. 2 STORMWATER INVESTIGATION(TO BE PROVIDED TO THE WDNR BY
BLASLAND, BOUCK, & LEE, INC.,UNDER SEPARATE COVER)
1401Z02 0000:RTB:ruck0329