5.6 WATER QUALITY - Airport Projects

PORT COLUMBUS INTERNATIONAL AIRPORT ENVIRONMENTAL IMPACT STATEMENT

FINAL

5.6 WATER QUALITY

Pursuant to the Council on Environmental Quality (CEQ), 40 CFR ?1502.16, this Environmental Impact Statement (EIS) discloses specific and potential impacts to various environmental resource categories as defined in Appendix A of Federal Aviation Administration (FAA) Order 1050.1E and Chapter 7 of FAA Order 5050.4B. This section describes the existing conditions of drainage basins; land characteristics; airport operations and Best Management Practices (BMPs); and regulatory requirements that are related to water quantity and quality at Port Columbus International Airport (CMH or Airport).

5.6.1 EXISTING CONDITIONS: 2006 5.6.1.1 Drainage Basins 1, 2

CMH is located within the Big Walnut Creek drainage basin. Stormwater drainage from CMH discharges into four receiving streams: Turkey Run, Mason Run, Big Walnut Creek, and Alum Creek. Approximately five miles downgradient of CMH, Turkey Run flows into Mason Run, which ultimately discharges into Big Walnut Creek. Big Walnut Creek, which originates north of CMH, is located on the eastern boundary of CMH and flows in a southerly direction. It receives flow from a series of internal outfalls and open channels on the north and southeast sides of the Airport. The drainage network discharging to the lower reach of Turkey Run originates at Stelzer Road, west of Runway 10L/28R. It flows southward under International Gateway, then enters a box culvert underneath existing Runway 10R/28L. South of Runway 10R/28L, the box culvert drains into an open channel. Additional drainage from the western portion of CMH enters the open channel south of the box culvert. The drainage network discharging to the lower reach of Mason Run originates on the south side of Runway 10L/28R. Mason Run flows southeast under International Gateway to a series of box culverts passing under Runway 10R/28L and under former Air Force Plant 85 (currently the Columbus International Aircenter Complex (CIAC)). Mason Run is enclosed for approximately 2,000 feet under former Air Force Plant 85 until it leaves the Air Force Plant 85 location on the southern boundary.3

1 Information obtained from the 2007 Stormwater Management Master Plan for the Port Columbus International Airport, unless otherwise noted.

2 Resource International, Inc., Port Columbus International Airport, Stormwater Management Master Plan. Columbus, Ohio. Resource International, Inc. 2005.

3 Earth Tech, Inc., Environmental Baseline Survey for Air Force Plant 85, Alexandria, VA. Earth Tech, Inc., 1996.

Landrum & Brown March 2009

Chapter Five ? Environmental Consequences Page 5.6-1

PORT COLUMBUS INTERNATIONAL AIRPORT ENVIRONMENTAL IMPACT STATEMENT

FINAL

Approximately 50 acres of CMH property on the southwest corner of the Airport drains through a series of off-site storm sewers into Alum Creek. Alum Creek is located west of the Airport and flows in a southerly direction. Included in this area are residences that may be purchased by the Airport. The CMH property is divided into nine drainage areas. Exhibit 5.6-1, Drainage Area Boundaries and Existing Outfall Locations, identifies the drainage area boundaries and existing outfall locations. Exhibit 5.6-2, Subwatershed Boundaries for the CMH Receiving Streams, identifies subwatershed boundaries for the receiving streams. Airport drainage basins and outfalls are described in more detail below. Outfall locations are defined by the coordinates specified in the CMH National Pollutant Discharge Elimination System (NPDES) permit. The NPDES permit was issued on July 15, 2002 and became effective August 1, 2002. The NPDES permit expired on July 31, 2007. In order to receive authorization by the Ohio Environmental Protection Agency (Ohio EPA) to discharge beyond the expiration date of the permit, a permit application renewal was submitted in January 2007 and the Columbus Regional Airport Authority (CRAA) continues to perform operations in accordance with the requirements set forth in the expired permit until a new permit is issued. Additional discussions regarding the facility NPDES permit and other applicable regulatory requirements are included in the section titled Regulatory History and Framework. DRAINAGE BASIN 1 This basin includes areas that drain into the lower reach of Turkey Run. The northernmost areas flow through storm sewers into the box culvert under Runway 10R/28L. The point where the box culvert discharges into Turkey Run south of the runway is designated as Outfall 001. The southernmost areas of Basin 1 flow via overland flow into Turkey Run south of Outfall 001. The area is located on the western boundary of CMH and is bisected by Stelzer Road. The total drainage area of Drainage Basin 1 is approximately 546 acres, of which 29 percent is impervious. The area includes the intersection of International Gateway and Stelzer Road, rental car agency buildings, parking lots, and the Runway Protection Zone (RPZ) for Runway 10R/28L. DRAINAGE BASINS 2 AND 3 These basins include the areas that drain into the segment of Mason Run on the south side of the Airport. Drainage Basin 2 is located on the south central portion of CMH and drains runoff from International Gateway, rental car facilities, parking lots, hotels, and service buildings. The basin also includes portions of Runway 10R/28L, Taxiways B and C, and the former Air Force Plant 85. The total drainage area of Basin 2 is approximately 263 acres, of which 58 percent is impervious. Stormwater from upper portions of Basin 2 discharges through Outfall 002 into an open ditch south of Taxiway B. The stormwater collected in the open ditch and the remainder of Basin 2 discharges into a storm sewer that also receives the drainage from Basin 3.

Landrum & Brown March 2009

Chapter Five ? Environmental Consequences Page 5.6-2

HAMILTON RD HARROW BLVD

TOWNE CT E GOSHEN LN XAVIER ST ST JOHNS PL OBERLIN ST CLEMSON ST JAMES RD

STELZER RD

FLINT RIDGE DR BROKEN ARROW RD

CLIFFVIEW DR RIVERS END RD

Big Walnut Cr eek

MOUNTIAN OAK RD FERNTREE RD RICHTREE RD

HOLLY RIDGE RD

HUDSON ST BLUE RIDGE RD

HUDSON ST

HOGAN WAY

LONE SPRUCE RD

DRAKE RD

OLE COUNTRY LN

???670

JOHNSTOWN RD

MARILYN PARK LN

MIFFLIN ST

ENGLEWOOD DR GAYLE DR

DIVEN LN

HUBLER SERVICE RD

GOSHEN CT

???270

BRIDGEWAY AV

DUNBARTON RD DENISON AV

CITADEL ST

LANSDOWNE AV MUSKINGUM DR

PRICE RD

PRICE RD

Nationwide

NetJets Aviation

Fuel Farm

Basin 8

Police Training BRIDGEWAY AVCenter

Airfield T Hangars Maintenance

Buildings

Landscape Buildings

President's Residence

Deicing Stormwater Storage Tanks

JAMES RD

OUTFALL 8

BEAVERBROOK DR HEMSTON DR

ROCKY FORK DR S

HEMSTON CT WATERBURY BLVD

MORRISON RD

ARBORS CIR TAYLOR RD

WARLOCK CT

DUNOON DR

OFFICE CENTER PL

10L

CLAYCRAFT RD

GOULD RD JAMES RD

RARIG AV

SEVENTEENTH AV LAMB AV

RARIG AV

SWITZER AV

SWITZER AV

RARIG AV

FOURTEENTH AV

Basin 9

THIRTEENTH AV

ELEVENTH AV

TWELFTH AV

TENTH AV

ELEVENTH AV

TWELFTH ST ELEVENTH ST

TENTH ST NINTH ST

RARIG AV

SEVENTH AV SIXTH AV

FIFTH AV

FIFTH AV

FOURTH AV

RARIG AV GOULD RD

STERLING AV KRUMM AV

NORTH ST CENTER ST

SOUTH ST THIRTEENTH ST

STERLING LN SEVENTH AV

SIXTH AV

N BARCLAY SQ

Environmental IAmLLEpGaHcENtYSAVtatement

S BARCLAY SQ Port Columbus International Airport

BELLWOOD AV

SECOND ST FIRST ST STELZER RD

STELZER RD

STELZER RD

10R

"Employee" Parking Lot

Basin 1 "Red" Parking Lot

Electric Vault

Avis Rental

Car

"Green" Parking

Lot

Dollar Rental

Car

Hertz Rental

Car

Comfort

Suites

McDonald's

Cross Country

Inn

Hilton Garden

Inn

Hampton Inn

Post Office

Concourse Inn

Central Parking

"Blue" Parking Lot ATCT

Basin 2

Lane Aviation

Garage

SAWYER RD

Basin 6

Terminal

28R

Basin 5

OUTFALL 6

Fuel Farm Pumping

Station Glycol Farm

Pet Cemetery

OUTFALL 4

Triturator

ARFF 94th Aero Squadron

Gate Gourmet

28L

Stelzer Cemetery

OUTFALL 1 OUTFALL 2

Basin 3

Basin 4

SAWYER RD SAWYER RD

MORRISON RD

Airport Golf

Course

PIZZURRO PARK DR

Airport Golf

Course

OSBORN AV

SEVENTH AV

FIFTH AV

FINAL

2/4/2009 Prepared by Landrum & Brown Filename: P:\CMH\GIS_EIS_P150\

MXD\EXHIBITS\EIS\5.6-1_Drainage Area Boundaries and Existing Outfall Locations.mxd

JAMES RD

Building 7

OUTFALL 2

Basin 7

OUTFALL 7

FIFTH AV

HAMILTON RD

WILDBERRY LN WATERSWAY LN

ROSS CT SCHOFIELD DR

HYLAND CT

PARK LAWN CIR YEARLING RD

POTH RD

0

SOURCE: Gresham Smith and Partners

Drainage Area Boundaries and Existing Outfall Locations LEWIS CT

Legend

Deicing Areas Basin Boundary Drainage

1,000'

CARDINAL PARK DR

RODEO DR

?

Exhibit:

MALIBU5R.D6-1

SANTA ROSA

MIDCLIFF DR HAMILTON RD WOODCLIFF DR

THIS PAGE INTENTIONALLY LEFT BLANK

MIFFLIN ST

MARILYN PARK LN

MOUNTIAN OAK RD FERNTREE RD RICHTREE RD

HOLLY RIDGE RD

HUDSON ST BLUE RIDGE RD

HUDSON ST

HOGAN WAY

LONE SPRUCE RD

DRAKE RD

OLE COUNTRY LN

???670

JOHNSTOWN RD

10L

STELZER RD

RARIG AV

SEVENTEENTH AV LAMB AV

Basin 1

Turkey Run Subwatershed

RARIG AV

10R

SWITZER AV

SWITZER AV

RARIG AV

FOURTEENTH AV

Alum Creek Subwatershed

Basin 9

THIRTEENTH AV

ELEVENTH AV

TWELFTH AV

TENTH AV

ELEVENTH AV

Stelzer Cemetery

SECOND ST FIRST ST STELZER RD

TWELFTH ST ELEVENTH ST

TENTH ST NINTH ST

RARIG AV

SEVENTH AV SIXTH AV

FIFTH AV

FIFTH AV

FOURTH AV

RARIG AV GOULD RD

STERLING AV KRUMM AV

NORTH ST CENTER ST

SOUTH ST THIRTEENTH ST

STERLING LN SEVENTH AV

SIXTH AV

SEVENTH AV

OSBORN AV

FIFTH AV

STELZER RD

GOULD RD JAMES RD

N BARCLAY SQ

Environmental IAmLLEpGaHcENtYSAVtatement

S BARCLAY SQ Port Columbus International Airport

BELLWOOD AV

FINAL

1/20/2009 Prepared by Landrum & Brown Filename: P:\CMH\GIS_EIS_P150\

MXD\EXHIBITS\EIS\ 5.6-2_Subwatershed Boundaries for the CMH Receiving Streams.mxd

STELZER RD

ENGLEWOOD DR GAYLE DR

TOWNE CT E GOSHEN LN XAVIER ST ST JOHNS PL OBERLIN ST CLEMSON ST JAMES RD

DIVEN LN

HUBLER SERVICE RD

GOSHEN CT

???270

BRIDGEWAY AV

DUNBARTON RD DENISON AV

CITADEL ST

LANSDOWNE AV MUSKINGUM DR

PRICE RD

PRICE RD

BRIDGEWAY AV

Basin 8

Big Walnut Creek Subwatershed

JAMES RD

SAWYER RD

Basin 6

28R

ROCKY FORK DR S

Basin 5

Pet Cemetery

MORRISON RD

OFFICE CENTER PL

BEAVERBROOK DR HEMSTON DR

WARLOCK CT

HEMSTON CT WATERBURY BLVD

ARBORS CIR TAYLOR RD

DUNOON DR

SAWYER RD SAWYER RD

Basin 2

Mason Run Subwatershed

JAMES RD

Building 7

Basin 3

Basin 4

Mason Run Subwatershed

Basin 7

FIFTH AV

28L

MORRISON RD

PIZZURRO PARK DR

Airport Golf

Course

HAMILTON RD

WILDBERRY LN WATERSWAY LN

ROSS CT SCHOFIELD DR

HYLAND CT

PARK LAWN CIR YEARLING RD

POTH RD

0

SOURCE: Gresham Smith and Partners

Subwatershed Boundaries for the CMH Receiving Streams LEWIS CT

Legend

Alum Creek Subwatershed

SANTA ROSA

Big Walnut Creek Subwatershed

Mason Run Subwatershed

Turkey Run Subwatershed Drainage

1,000 '

RODEO DR

?

CARDINAL PARK DR

Exhibit:

MALIBU5RD.6-2

MIDCLIFF DR HAMILTON RD WOODCLIFF DR

FLINT RIDGE DR BROKEN ARROW RD

CLIFFVIEW DR RIVERS END RD

Big Waln ut Creek

HAMILTON RD HARROW BLVD

CLAYCRAFT RD

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