SOURCE WATER ASSESSMENT SUMMARY BROCHURE RAINIER WATER DEPARTMENT PWS #

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1 SOURCE WATER ASSESSMENT SUMMARY BROCHURE RAINIER WATER DEPARTMENT PWS # WHAT IS A SOURCE WATER ASSESSMENT? The Source Water Assessment was recently completed by the Department of Environmental Quality (DEQ) and the Oregon Health Division (OHD) to identify the surface areas (and/or subsurface areas) that supply water to Rainier s public water system intake and to inventory the potential contaminant sources that may impact the water supply. WHY WAS IT COMPLETED? The Source Water Assessment was completed to provide information so that Rainier s public water system staff/operator, consumers, and community citizens can begin developing strategies to protect the source of their drinking water, and to minimize future public expenditures for drinking water treatment. The assessment was prepared under the requirements and guidelines of the Federal Safe Drinking Water Act (SDWA). WHAT AREAS ARE INCLUDED IN RAINIER S DRINKING WATER PROTECTION AREA? The drinking water for the City of Rainier Water Department (Rainier) is supplied by two intakes, the primary intake is on Fox Creek and a secondary intake is on the Columbia River. This public water system serves approximately 2,000 citizens. The intake is located in the Beaver Creek/Columbia River Watershed in the Lower Columbia/Clatskanie Sub-Basin. The geographic area providing water to Rainier s Fox Creek intake extends upstream approximately one to two miles and encompasses a total area of 1.67 square miles. The geographic area providing water to Rainier s Columbia River intake extends upstream approximately twelve miles and encompasses a total area of square miles. The boundaries of the Drinking Water Protection Area include both these geographic areas and are illustrated on the figure attached to this summary. WHAT ARE THE POTENTIAL SOURCES OF CONTAMINATION TO RAINIER S PUBLIC DRINKING WATER SUPPLY? The primary intent of this inventory was to identify and locate significant potential sources of contaminants of concern. The delineated drinking water protection area is primarily dominated by managed forests and rural residential land uses with the exception of residential, commercial, and industrial land uses within the City of Rainier and along the Columbia River. The potential contaminant sources identified in the watershed include: private residences (with septic systems, scrap operations/random dumpsites); transportation corridors; transmission lines; commercial/ industrial facilities; heavy use river recreation areas and parks; managed forest lands; mines and gravel pits; areas with grazing animals; and irrigated crops. This provides a quick look at the existing potential sources of contamination that could, if improperly managed or released, impact the water quality in the watershed. WHAT ARE THE RISKS FOR OUR SYSTEM? A total of 37 potential contaminant sources were identified in Rainier s drinking water protection area. Twenty-six of these are located in the sensitive areas and are high- to moderate-risk sources within sensitive areas. The sensitive areas within the Rainier drinking water protection area include areas with high soil permeability, high soil erosion potential, high runoff potential and areas within 1000 from the river/streams. The sensitive areas are those where the potential contamination sources, if present, have a greater potential to impact the water supply. The information in this assessment provides a basis for prioritizing areas in and around our community that are most vulnerable to potential impacts and can be used by the Rainier community to develop a voluntary Drinking Water Protection Plan. NEED MORE INFORMATION? Rainier s Source Water Assessment Report provides additional details on the methodology and results of this assessment. The full report is available for review at: Contact the City Public Works staff if you would like additional information on Rainier s Source Water Assessment results.

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3 1 Transportation - VARIOUS COLUMBIA RIVER RAINIER Field- Within Higher Heavy river usage may contribute to River Traffic - TRANSPORT/CO Observation sensitive riverbank erosion and increased turbidity in MMERCIAL/REC drinking water supply. Fuel and other REATIONAL chemical leaks, spills and emissions may SHIPPING also contribute to drinking water 2 Above Ground CITY OF NORTH END OF THIRD RAINIER Database (2) Within Moderate Spills, leaks, or improper handling of stored SECONDARY CONTAINMENT Storage Tanks - RAINIER PIER Field- sensitive materials may impact the drinking water IN PLACE. Excluding Water Observation supply. Interview Other MARINA Higher The impacts of this potential contaminant SECONDARY CONTAINMENT source will be addressed during the IN PLACE. enhanced inventory. 3 Junk/Scrap/Salvage PRIVATE END OF 4TH A ST. RAINIER Field- Within Higher Spills, leaks, or improper handling of Yards RESIDENCE? Observation sensitive automotive chemicals, batteries, and other waste materials during storage and 4 Junk/Scrap/Salvage UNKNOWN/PRI NORTH SIDE OF A ST. RAINIER Field- Within Higher Spills, leaks, or improper handling of Yards VATE RESIDENCE BETWEEN 4TH & 5TH Observation sensitive automotive chemicals, batteries, and other STS. waste materials during storage and 5 Automobiles - Body R-M/RIVERSIDE CORNER OF 5TH & A RAINIER Field- Within Moderate Improper management of vehicle paints, Shops AUTO BODY STS. Observation sensitive thinners, and primer products may impact Interview the drinking water supply. 2/14/2003 Page 1 of 9

4 6 Above Ground FOSS MARITIME A END OF 6TH ST. RAINIER Database (2) Within Moderate Spills, leaks, or improper handling of stored Storage Tanks - Field- sensitive materials may impact the drinking water Excluding Water Observation supply. Interview Boat Higher Spills, leaks, or improper handling of fuels, Services/Repair/Re septage, maintenance chemicals, finishing sandblasting wastes, paints, and other materials during transportation, use, storage and disposal may impact the drinking water supply. 7 Automobiles - NEB'S AUTO CORNER OF B & 3RD RAINIER Field- Within Moderate Spills, leaks, or improper handling of Repair Shops PARTS STS. Observation sensitive automotive fluids, solvents, and repair materials during transportation, use, storage and disposal may impact the drinking water supply. 8 Schools RAINIER MIDDLE SOUTH SIDE OF E ST. RAINIER Database (2) Outside Moderate Over-application or improper handling of 8TH ST. Field- sensitive cleaning products, pesticides or fertilizers Observation areas. used on the school grounds may impact drinking water. Vehicle maintenance wastes may contribute contaminants. 9 Random Dump PRIVATE COLUMBIA RAINIER Field- Within Higher Illegal trash and debris containing RESIDENCE HIGHWAY Observation sensitive chemicals and hazardous materials may cause contamination to groundwater or surface water supply. 10 Junk/Scrap/Salvage PRIVATE ~74400 COLUMBIA RAINIER Field- Outside Higher Spills, leaks, or improper handling of Yards RESIDENCE HIGHWAY/PRIVATE Observation sensitive automotive chemicals, batteries, and other RESIDENCE areas. waste materials during storage and 2/14/2003 Page 2 of 9

5 11 River Recreation - LAUREL END OF LINDBERG RD. RAINIER Field- Within Moderate Inadequate disposal of human wastes may PUBLICALY OWNED Heavy Use (inc. BEACH/COLUMBI Observation sensitive contribute bacteria and nutrients to the PARKING AREA FOR campgrounds) A COUNTY drinking water supply. Heavy use may RIVER/BEACH ACCESS. contribute to streambank erosion causing turbidity. Fuel spills and emissions may also contribute to contamination. 12 Wastewater RIVERWOOD HIGHWAY 30 ~3KM RAINIER Database (2) Within Higher Improper management of wastewater, RECALCITRANT ABSENTEE Treatment MOBILE HOME SOUTH OF RAINIER Field- sensitive treatment chemicals, or equipment OWNER; LOCAL OPERATOR'S Plants/Collection PARK Observation maintenance materials may impact STATUS IN QUESTION. Stations Interview drinking water supply. TREATMENT SYSTEM FAILING. TREATMENT SYSTEM IS Housing - High Higher Improper use, storage, and disposal of RECALCITRANT ABSENTEE Density (> 1 household chemicals may impact the OWNER; LOCAL OPERATOR'S House/0.5 acres) drinking water supply. Stormwater run-off STATUS IN QUESTION. or infiltration may carry contaminants to drinking water supply. TREATMENT SYSTEM FAILING. TREATMENT SYSTEM IS Junk/Scrap/Salvage Higher Spills, leaks, or improper handling of RECALCITRANT ABSENTEE Yards automotive chemicals, batteries, and other OWNER; LOCAL OPERATOR'S waste materials during storage and STATUS IN QUESTION. TREATMENT SYSTEM FAILING. TREATMENT SYSTEM IS 2/14/2003 Page 3 of 9

6 13 Home CONSOLIDATED HIGHWAY 30 ~3KM RAINIER Field- Within Higher Spills, leaks, or improper handling of FACILITY APPARENTLY MOBILE HOMES SOUTH OF RAINIER Observation sensitive chemicals and other materials during REFURBISHES OLD MOBILE transportation, use, storage and disposal HOMES; ABUNDANT OPEN may impact the drinking water supply. STORAGE OF PARTS AND MATERIALS. 14 Random Dump UNKNOWN/PRIV BEHIND MHP AND RAINIER Field- Within Higher Illegal trash and debris containing OBVIOUS RAMPANT ATE RESIDENCE CONSOLIDATED Observation sensitive chemicals and hazardous materials may DUMPING OF HOUSEHOLD MOBILE HOMES cause contamination to groundwater or TRASH/GARBAGE. surface water supply. 15 Managed Forest LONGVIEW FIBER END OF JACK FALLS UNK Field- Within Higher Cutting and yarding of trees may RESTRICTED ACCESS / Land - Clearcut Observation sensitive contribute to increased erosion, resulting in LOCKED GATE. Harvest (< 35 yrs.) turbidity and chemical changes in drinking water supply. Over-application or improper handling of pesticides or fertilizers may impact drinking water source. 16 Parks PRESCOTT NORTHERN-MOST END PRESCOTT Field- Within Moderate Over-application or improper handling of DAY USE PARK; PIT VAULT BEACH OF PRESCOTT Observation sensitive pesticides/fertilizers may impact drinking LATRINE; ON-SITE MANAGER. PARK/COLUMBIA PENINSULA water. Excessive irrigation may cause COUNTY transport of contaminants through runoff. Heavy use along edge of waterbody may contribute to erosion, causing turbidity. 2/14/2003 Page 4 of 9

7 17 Other INDUSTRY TROJAN COLUMBIA PRESCOTT Database (2) Within Higher Spills, leaks, or improper handling of UNKNOWN QUANTITY OF NUCLEAR HIGHWAY Field- sensitive chemicals and other materials during RADIONUCLIDE RICH POWER Observation transportation, use, storage, and disposal MATERIAL & OTHER PLANT/PGE may impact the drinking water supply. INDUSTRIAL COMPOUNDS STORED ON SITE. ACTIVITY STATUS UNKNOWN; PWS MAY WANT TO VERIFY. CONCORDIA UNIVERSITY BRANCH CAMPUS ON SITE. Schools Moderate Over-application or improper handling of UNKNOWN QUANTITY OF cleaning products, pesticides or fertilizers RADIONUCLIDE RICH used on the school grounds may impact MATERIAL & OTHER drinking water. Vehicle maintenance INDUSTRIAL COMPOUNDS wastes may contribute contaminants. STORED ON SITE. ACTIVITY STATUS UNKNOWN; PWS MAY WANT TO VERIFY. CONCORDIA UNIVERSITY BRANCH CAMPUS ON SITE. 18 Grazing Animals (> GRAZING WEST SIDE OF NICK- RAINIER Field- Within Higher Improper storage and management of UNRESTRICTED ACCESS TO 5 large animals or ANIMALS TOMAS POWER Observation sensitive animal wastes may impact drinking water TRIBUTARY OF GOBLE equivalent/acre) LINE supply. Concentrated livestock may CREEK; HEAVY BANK CATTLE PASTURE contribute to erosion and sedimentation of EROSION THROUGHOUT. surface water bodies. 19 Mines/Gravel Pits GRAVEL PIT NICOLAI RD. OPOSITE RAINIER Field- Outside Higher Spills, leaks, or improper handling of GOBLE ELEMENTARY Observation sensitive chemicals and wastes generated in mining SCHOOL areas. operations or from heavy equipment may impact the drinking water supply. 20 Schools GOBLE CORNER OF GOBLE GOBLE Database (2) Outside Moderate Over-application or improper handling of ELEMENTARY SCHOOL RD. & NICOLAI Field- sensitive cleaning products, pesticides or fertilizers SCHOOL RD. Observation areas. used on the school grounds may impact drinking water. Vehicle maintenance wastes may contribute contaminants. 2/14/2003 Page 5 of 9

8 21 Campgrounds/RV GOBLE EAST OF HWY 30 IN GOBLE Database (2) Within Moderate Leaks or spills of automotive fluids or FUEL PUMPS LOCATED ON Parks LANDING/STORE GOBLE Field- sensitive improperly managed septic systems and PIER. MULTIPLE USE /RV PARK Observation wastewater disposal may impact drinking FACILITY; UNKNOWN water supply. Heavy usage along edge of WASTEWATER DISPOSAL; waterbody may contribute to erosion, PWS MAY WANT TO VERIFY. causing turbidity. Boat Higher Spills, leaks, or improper handling of fuels, FUEL PUMPS LOCATED ON Services/Repair/Re septage, maintenance chemicals, PIER. MULTIPLE USE finishing sandblasting wastes, paints, and other FACILITY; UNKNOWN materials during transportation, use, WASTEWATER DISPOSAL; storage and disposal may impact the PWS MAY WANT TO VERIFY. drinking water supply. Other MARINA Higher The impacts of this potential contaminant FUEL PUMPS LOCATED ON source will be addressed during the PIER. MULTIPLE USE enhanced inventory. FACILITY; UNKNOWN WASTEWATER DISPOSAL; PWS MAY WANT TO VERIFY. 22 Cemeteries - Pre- NEER CITY TOP OF HILL ON NEER RAINIER Field- Outside Lower Embalming fluids (for example, arsenic) 1945 CEMETERY RD. Observation sensitive and decomposition by-products may areas. impact drinking water supply. 23 Junk/Scrap/Salvage UNKNOWN/PRIV UN-NAMED ROAD GOBLE Field- Within Higher Spills, leaks, or improper handling of Yards ATE RESIDENCE BETWEEN GOBLE Observation sensitive automotive chemicals, batteries, and other SCHOOL RD. & HWY 30 waste materials during storage and 24 Junk/Scrap/Salvage UNKNOWN/PRIV AT GOBLE SCHOOL & GOBLE Field- Outside Higher Spills, leaks, or improper handling of Yards ATE RESIDENCE JAQUISH RDS. Observation sensitive automotive chemicals, batteries, and other areas. waste materials during storage and 2/14/2003 Page 6 of 9

9 25 Grazing Animals (> GRAZING WEST SIDE OF UN- GOBLE Field- Outside Higher Improper storage and management of HEAVY TOPSOIL SLUMPING 5 large animals or ANIMALS NAMED ROAD SOUTH Observation sensitive animal wastes may impact drinking water IN SLOPED REGIONS OF equivalent/acre) OF GOBLE SCHOOL R areas. supply. Concentrated livestock may PASTURE. CATTLE PASTURE contribute to erosion and sedimentation of surface water bodies. 26 Crops - Irrigated BIG MEADOW NORTH END OF DEER RAINIER Field- Within Higher Over-application or improper handling of PRIVATE DRIVE / VISUAL (inc. orchards, FARM ISLAND; ~34200 Observation sensitive pesticides/fertilizers may impact drinking OBSERVATION FROM ROAD; vineyards, COLUMBIA HWY. water. Excessive irrigation may transport LARGE OPERATION. nurseries, greenhouses) contaminants or sediments to groundwater/surface water through runoff. Drip-irrigated crops are considered to be a low risk. Grazing Animals (> Higher Improper storage and management of PRIVATE DRIVE / VISUAL 5 large animals or animal wastes may impact drinking water OBSERVATION FROM ROAD; equivalent/acre) supply. Concentrated livestock may LARGE OPERATION. CATTLE PASTURE contribute to erosion and sedimentation of surface water bodies. 27 Junk/Scrap/Salvage UNKNOWN/PRIV ON NORTH BANK OF RAINIER Field- Within Higher Spills, leaks, or improper handling of NO TRESPASSING / PLAIN Yards ATE RESIDENCE GOBLE CREEK Observation sensitive automotive chemicals, batteries, and other VIEW INSPECTION; IMMEDIATELY WEST OF waste materials during storage and ABUNDANT MACHINE AND H HEAVY EQUIPMENT PARTS STORED UNCOVERED. 28 Mines/Gravel Pits MOORSE LARGE AREA SOUTH UNK Field- Outside Higher Spills, leaks, or improper handling of BROTHERS OF DEER Observation sensitive chemicals and wastes generated in mining ISLAND SLOUGH areas. operations or from heavy equipment may impact the drinking water supply. 29 Transportation - BURLINGTON PARALLEL TO RIVER; RAINIER Field- Within Higher Rail transport elevates the risk for Railroads NORTHERN R/R ON A ST IN TOWN Observation sensitive leaks/spills of fuel & other haz. materials. Installation/maintenance of tracks may increase erosion & slope failure causing turbidity. Over-application/improper handling of pesticides may impact the 2/14/2003 Page 7 of 9

10 30 Housing - High CITY OF IN TOWN RESIDENTIAL RAINIER Field- Within Moderate Improper use, storage, and disposal of Density (> 1 AREA Observation sensitive household chemicals may impact the House/0.5 acres) drinking water supply. Stormwater run-off or infiltration may carry contaminants to drinking water supply. 31 Transmission Lines TRANSMISSION ALONG RIDGE TOP RAINIER Field- Outside Higher Construction and corridor maintenance - Right-of-Ways LINE RIGHT-OR- PARALELLING RIVER Observation sensitive may contribute to increased erosion and WAY THROUGHOUT DWPA areas. turbidity in drinking water supply. Overapplication or improper handling of pesticides or fertilizers may impact 32 Septic Systems - COMMUNITY OF ON ISLAND NORTH OF PRESCOTT Field- Within Moderate If not properly sited, designed, installed, High Density ( > 1 PRESCOTT THE TROJAN FACILITY Observation sensitive and maintained, septic systems can system/acre) impact drinking water. Cumulative effects of multiple systems in an area may impact drinking water supply. 33 Transportation - U.S. HIGHWAY PARALLEL TO RAINIER Field- Within Higher Vehicle use increases the risk for leaks or Freeways/State 30 / ODOT BASE OF SLOPE Observation sensitive spills of fuel & other haz. materials. Road Highways/Other building, maintenance & use can increase Heavy Use Roads erosion/slope failure causing turbidity. Over-application or improper handling of pesticides/fertilizers may impact water. 34 Managed Forest CITY OF SLOPES ABOVE EAST RAINIER Field- Within Higher Cutting and yarding of trees may PERMITTED TIMBER Land - Clearcut FORK OF FOX CREEK Observation sensitive contribute to increased erosion, resulting in HARVEST WITHIN DWPA Harvest (< 35 yrs.) Interview turbidity and chemical changes in drinking water supply. Over-application or improper handling of pesticides or fertilizers may impact drinking water source. 35 Homesteads - Rural RURAL NORTHWEST END OF RAINIER Field- Outside Lower If not properly sited, designed, installed, VIEWED FROM NEAR CITY - Septic Systems RESIDENTIAL DWPA Observation sensitive and maintained, septic systems can ROAD. (< 1/acre) AREA areas. impact drinking water. Use of drain cleaners and dumping household hazardous wastes can result in groundwater 2/14/2003 Page 8 of 9

11 36 Transmission Lines TRANSMISSION ALONG ENTIRE RAINIER Field- Outside Higher Construction and corridor maintenance HIGH TENSION ELECTRIC - Right-of-Ways LINE RIGHT-OF- EASTERN SIDE OF DWPA Observation sensitive may contribute to increased erosion and TRANSMISSION LINE WAY areas. turbidity in drinking water supply. Overapplication or improper handling of pesticides or fertilizers may impact 37 Homesteads - Rural BOARDING PRIVATE DRIVE IN RAINIER Field- Within Lower If not properly sited, designed, installed, Risk Reduced to Moderate - Septic Systems STABLES NORTHEAST CORNER Observation sensitive and maintained, septic systems can because SMALL NUMBER OF (< 1/acre) OF DWPA impact drinking water. Use of drain ANIMALS;WELL FORESTED cleaners and dumping household hazardous AROUND PASTURE. wastes can result in groundwater Boarding Stables Moderate Improper storage and management of Risk Reduced to Moderate animal wastes and wastewater in areas of because SMALL NUMBER OF concentrated livestock may impact ANIMALS;WELL FORESTED drinking water. AROUND PASTURE. 2/14/2003 Page 9 of 9