Washington Utility Marking Concerns Phone Numbers by County

If a utility line has been marked incorrectly, marks are missing, or paint and flags have been disturbed before you dig, contact the operator that owns the line. Each operator below lists a dedicated marking concerns number for Washington.

Call 811 first before any excavation. 811 is free and notifies operators to mark public utilities. It does not mark private lines past the meter.

Washington requires not less than two full business days and not more than 10 full business days notice before you dig, per RCW 19.122.030. From 1 January 2026 you may not begin excavation until you have received a positive response from every operator on your ticket. Marks expire 45 calendar days from the date notice was given.

Before you rely on this list

This is not a complete list of operators. Operators join, leave and change numbers, and some facilities are not registered with the one-call centre at all. Treat this as a reference for finding a number quickly, not as proof of who is present on your job site.

Your 811 ticket is the authority. The ticket lists every operator notified for your specific dig location, and you should use it to confirm that all of them have responded before you break ground. If an operator on your ticket has not responded, do not dig — contact them using the marking concerns number on the ticket itself.

Adams County

ADAMS COUNTY — 800-778-9140

AVISTA — 888-728-9343

BIG BEND ELECTRIC CO-OP, INC — 509-659-1700

CASCADE NATURAL GAS-WENATCHEE — 509-662-0615

VYVE BROADBAND — 800-778-9140

CITY OF OTHELLO — 509-488-6997

CTLQL-CENTURYLINK — 800-778-9140

CITY OF RITZVILLE — 509-659-1930

Asotin County

ASOTIN COUNTY REGIONAL STORMWA — 509-254-7582

AVISTA — 888-722-9343

AVISTA — 888-728-9343

AVISTA — 800-227-9187

CITY OF CLARKSTON — 509-254-1491

PORT OF CLARKSTON — 208-661-5648

P.U.D. OF ASOTIN COUNTY — 509-758-1010

CTLQL-CENTURYLINK — 800-778-9140

CABLE ONE INC — 208-901-4096

WSDOT-SCR — 509-577-1961

Benton County

BENTON CO ROAD DEPT — 509-786-5611

BENTON IRRIGATION DISTRICT — 509-588-8170

BENTON COUNTY PUD — 509-582-1254

BENTON REA — 509-786-2913

CITY OF BENTON CITY — 509-588-3322

CHARTER COMMUNICATIONS — 888-728-9343

CASCADE NATURAL GAS-KENNEWICK — 509-783-7361

COLUMBIA IRRIGATION DISTRICT — 509-586-6118

KENNEWICK IRRIGATION DISTRICT — 509-378-9241

CITY OF KENNEWICK — 509-727-1309

KIONA IRRIGATION DISTRICT — 509-832-1921

CITY OF PROSSER — 509-786-2332

CTLQL-CENTURYLINK — 800-778-9140

RICHLANDWTR-SWR-STM-ELEC-FIBER — 509-942-7429

WSDOT-SCR — 509-577-1961

CITY OF WEST RICHLAND — 509-967-5434

SUNNYSIDE VALLEY IRR DIST — 509-831-5086

ZIPLY FIBER — 503-255-4634

Chelan County

AMERICAN TRAFFIC SOLUTIONS — 480-443-7000

CITY OF CHELAN — 509-682-8030

CHELAN COUNTY PUD W WW — 509-661-4325

PUD #1 OF CHELAN COUNTY — 509-661-4325

CHELAN COUNTY PUBLIC WORKS — 509-667-6415

CHARTER COMMUNICATIONS — 888-728-9343

CITY OF LEAVENWORTH — 800-778-9140

CASCADE NATURAL GAS-WENATCHEE — 509-662-0615

CITY OF WENATCHEE SIGNAL LIGHT — 509-888-3222

CITY OF WENATCHEE WATER — 509-888-3233

CITY OF WENATCHEE STORM-SEWER — 509-888-3291

ASTOUND BROADBAND — 800-778-9140

ZIPLY FIBER — 503-255-4634

Clallam County

CLALLAM COUNTY PUBLIC WKS — 360-417-2379

CLALLAM PUD ELECTRIC — 360-452-9771

DRY CREEK WATER ASSOCIATION — 360-452-2780

CITY OF PORT ANGELES — 360-417-4800

CTLQL-CENTURYLINK — 800-778-9140

ASTOUND BROADBAND — 800-778-9140

Clark County

AT&T CORP — 800-252-1133

COMCAST CABLE — 385-977-0510

CLARK COUNTY PUBLIC WORKS — 360-921-3524

CLARK PUBLIC UTIL ELECTRIC — 503-803-1106

CLARK PUBLIC UTILITIES- WATER — 503-803-1106

SUBSURFACE GPR AND LOCATING — 360-605-6908

EZEE FIBER — 253-232-2752

FORGED FIBER 37 LLC — 800-778-9140

CLARK REGIONAL WASTEWATER DIST — 360-750-5876

LEVEL 3 NOW LUMEN — 877-366-8344

MCI — 800-624-9675

NW NATURAL — 971-277-4474

PORT OF RIDGEFIELD — 800-778-9140

CTLQL-CENTURYLINK — 800-778-9140

TDS TELECOM-LEWIS RVR TEL CO — 800-778-9140

COGENT COMMUNICATIONS, INC — 800-521-0579

CITY OF VANCOUVER — 360-487-8292

CITY OF VANCOUVER-TRAFFIC — 360-772-6131

ASTOUND BROADBAND — 800-778-9140

WILLIAMS NW PIPELINE — 800-972-7733

WASHINGTON ST DOT — 360-619-0670

WSU - VANCOUVER — 360-546-9000

ZIPLY FIBER — 503-255-4634

Columbia County

COLUMBIA REA, INC — 509-526-4041

CITY OF DAYTON — 509-386-4238

PORT OF COLUMBIA COUNTY — 800-778-9140

PACIFIC POWER — 425-392-6412

CTLQL-CENTURYLINK — 800-778-9140

Cowlitz County

CITY OF CASTLE ROCK — 360-274-7478

COMCAST CABLE — 385-977-0510

CASCADE NAT GAS-LNGVW — 360-423-1598

COWLITZ COUNTY PUD — 360-501-9546

FORGED FIBER 37 LLC — 800-778-9140

CITY OF KALAMA — 360-673-3706

KALAMA TELEPHONE COMPANY — 360-673-2755

CITY OF KELSO — 360-423-5730

CITY OF LONGVIEW — 360-442-5700

BP/OLYMPIC PIPE LINE COMPANY — 888-271-8880

CTLQL-CENTURYLINK — 800-778-9140

CITY OF WOODLAND — 360-225-7999

WILLIAMS NW PIPELINE — 800-972-7733

NIPPON DYNAWAVE PACKAGING CO. — 503-702-0838

ZIPLY FIBER — 503-255-4634

Douglas County

CITY OF WENATCHEE WATER — 509-888-3233

DOUGLAS COUNTY PUD — 509-884-7191

DGLS COUNTY TRAN & LAND SRV — 509-884-7173

DOUGLAS COUNTY SWR DIST 1 — 509-670-3900

EAST WENATCHEE WATER DIST — 509-884-3569

ZIPLY FIBER — 503-255-4634

CHARTER COMMUNICATIONS — 888-728-9343

CASCADE NATURAL GAS-WENATCHEE — 509-662-0615

Ferry County

PUD NO. 1 OF FERRY COUNTY — 509-775-3325

ZIPLY FIBER — 503-255-4634

Franklin County

BIG BEND ELECTRIC CO-OP, INC — 509-659-1700

CHARTER COMMUNICATIONS — 888-728-9343

CASCADE NATURAL GAS-KENNEWICK — 509-783-7361

FRANKLIN COUNTY HWY DEPT — 509-545-3514

FRANKLIN COUNTY IRRIG#1 — 509-547-4912

FRANKLIN COUNTY PUD — 509-546-5975

CITY OF PASCO — 509-545-3463

POCKETINET COMMUNICATIONS — 509-540-2441

CTLQL-CENTURYLINK — 800-778-9140

WSDOT-SCR — 509-577-1961

S COLUMBIA BASIN IRRIGATION DI — 509-547-1735

ZIPLY FIBER — 503-255-4634

Garfield County

AT&T CORP — 800-252-1133

NORTHWEST OPEN ACCESS NETWORK — 866-662-6380

PORT OF GARFIELD COUNTY — 800-778-9140

PACIFIC POWER — 425-392-6412

CTLQL-CENTURYLINK — 800-778-9140

Grant County

CASCADE NATURAL GAS-WENATCHEE — 509-662-0615

EAST COLUMBIA BASIN IRR. DIST. — 509-488-9671

CITY OF EPHRATA-LOC-X 114 — 509-754-4601

GRANT CNTY PUD-MOSES LAKE — 509-766-2515

GRANT COUNTY PUD-EPHRATA — 509-754-5022

GRANT COUNTY PUD-GRND COULEE — 509-754-5022

GRANT COUNTY PUD-QUINCY — 509-787-3565

CITY OF MOSES LAKE — 509-793-0118

VYVE BROADBAND — 800-778-9140

QUINCY COLUMBIA BASIN IRR DIST — 509-787-3591

CTLQL-CENTURYLINK — 800-778-9140

CITY OF QUINCY — 509-787-4131

CITY OF SOAP LAKE — 509-760-3738

WA ST DOT - N CENTRAL REG — 509-667-3085

WA STATE PARKS- EAST REGION — 509-665-4313

ZIPLY FIBER — 503-255-4634

Grays Harbor County

COAST COMMUNICATIONS COMPANY — 360-289-2252

COMCAST CABLE — 385-977-0510

CASCADE NATURAL GAS-ABERDEEN — 360-538-3941

CITY OF ABERDEEN-WTR DEPT — 360-537-3274

CITY OF ABERDEEN SEWER DEPT — 360-537-3224

CITY OF ABERDEEN-STORMWTR DEPT — 360-537-3274

CITY OF MCCLEARY — 360-495-3667

CITY OF MONTESANO — 360-249-3021

CITY OF OCEAN SHORES SEWER — 360-581-0492

OCEAN SHORES WATER — 360-590-0529

OCEAN SHORES STORMWATER — 360-500-7384

PUD #1 GRAYS HARBOR COUNTY — 503-803-1106

CTLQL-CENTURYLINK — 800-778-9140

RIPPLE FIBER — 360-421-2278

Island County

COMCAST CABLE — 385-977-0510

CASCADE NATURAL GAS-MT VERNON — 360-336-6156

CITY OF LANGLEY — 360-221-4246

HOLMES HARBOR SEWER DISTRICT — 360-331-4636

CITY OF OAK HARBOR — 360-279-4528

PUGET SOUND ENERGY ELECTRIC — 888-728-9343

SNOHOMISH PUD #1 ELEC — 800-778-9140

S WHIDBEY WATER SERVICES — 360-320-1490

ASTOUND BROADBAND — 800-778-9140

WHIDBEY TELECOM — 360-321-0050

ZIPLY FIBER — 503-255-4634

Jefferson County

CLALLAM PUD ELECTRIC — 360-452-9771

JEFFERSON COUNTY DPW — 360-385-9160

PUD #1 JEFFERSON COUNTY — 360-379-5820

PUD #1 OF JEFFERSON COUNTY — 360-379-5820

JEFFERSON COUNTY PUD #1 — 360-379-5820

CTLQL-CENTURYLINK — 800-778-9140

ASTOUND BROADBAND — 800-778-9140

King County

CITY OF BLACK DIAMOND — 360-851-4446

COMCAST CABLE — 385-977-0510

CITY OF FEDERAL WAY — 800-778-9140

COVINGTON WATER DISTRICT — 253-631-0565

CITY OF DUVALL — 425-788-3332

FORGED FIBER 37 LLC — 800-778-9140

CITY OF ISSAQUAH — 425-837-3470

KING COUNTY D.O.T. — 206-743-6845

KING CNTY METRO SEWER — 206-263-5722

CITY OF KIRKLAND — 425-587-3900

LEVEL 3 NOW LUMEN — 877-366-8344

LAKEHAVEN WATER & SEWER DISTRI — 253-261-1780

CITY OF MAPLE VALLEY — 425-413-1020

PUGET SOUND ENERGY ELECTRIC — 888-728-9343

PUGET SOUND ENERGY GAS — 888-728-9343

CTLQL-CENTURYLINK — 800-778-9140

SEATTLE CITY LIGHT — 206-684-4239

SEATTLE PUBLIC UTILITIES-WATER — 206-386-1849

SEATTLE D.O.T. — 206-391-3718

SEATTLE PUBLIC UTILITIES- DWW — 206-386-1800

SAMMAMISH PLATEAU WATER & SEWE — 425-392-6256

SOOS CREEK WTR & SWR DIST — 253-630-9900

ASTOUND BROADBAND — 800-778-9140

ZIPLY FIBER — 503-255-4634

Kitsap County

CASCADE NATURAL GAS BREMERTON — 360-373-1405

CASCADIA WATER- AQ — 360-710-4338

KITSAP COUNTY PUBLIC WORKS — 360-337-5777

CITY OF POULSBO — 360-697-6796

CITY OF PORT ORCHARD — 360-876-4991

PUGET SOUND ENERGY ELECTRIC — 888-728-9343

CTLQL-CENTURYLINK — 800-778-9140

SILVERDALE WATER DIST#16 — 360-447-3500

ASTOUND BROADBAND — 800-778-9140

KITSAP COUNTY PUD #1 — 800-778-9140

KITSAP COUNTY PUD #1 — 360-779-7656

CITY OF BAINBRIDGE ISLAND — 206-842-1212

CITY OF BREMERTON — 360-473-5920

COMCAST CABLE — 385-977-0510

Kittitas County

AT&T CORP — 800-252-1133

PUD #1 OF CHELAN COUNTY — 509-661-4325

CITY OF CLE ELUM — 509-304-5003

CITY OF ELLENSBURG ELECTRIC — 509-962-7124

CITY OF ELLENSBURG SEWER — 509-962-7230

CITY OF ELLENSBURG GAS — 509-962-7124

CITY OF ELLENSBURG WATER — 509-962-7230

LIGHTCURVE — 800-832-5725

INLAND TELEPHONE COMPANY — 509-649-2211

KITTITAS PUD #1 — 800-778-9140

KITTITAS COUNTY PUBLIC WORKS — 509-962-7523

MCI — 800-624-9675

PUGET SOUND ENERGY ELECTRIC — 888-728-9343

PUGET SOUND ENERGY GAS — 888-728-9343

CTLQL-CENTURYLINK — 800-778-9140

TOWN OF S. CLE ELUM — 509-674-4322

ZIPLY FIBER — 503-255-4634

Klickitat County

CITY OF BINGEN — 509-493-1348

KLICKITAT CO P.U.D. — 800-548-8358

KLICKITAT CO P.U.D. — 800-548-8357

NW NATURAL — 971-277-4474

CTLQL-CENTURYLINK — 800-778-9140

WILLIAMS NW PIPELINE — 800-972-7733

Lewis County

AT&T CORP — 800-252-1133

CARDINAL FG/INDUSTRIAL GAS — 360-242-4296

CENTRALIA CITY LIGHT — 360-829-5166

COMCAST CABLE — 385-977-0510

CITY OF CENTRALIA — 360-330-7512

CITY OF CHEHALIS — 360-748-6664

LOCAL ACCESS COMM — 253-262-3211

LEWIS COUNTY PUBLIC WORKS — 360-740-2614

PUD NO. 1 OF LEWIS COUNTY — 503-803-1106

TDS TELECOM — 800-778-9140

MCI — 800-289-3427

CITY OF NAPAVINE — 360-262-9344

NEWAUKUM HILL WATER ASSOC. — 360-262-9580

PUGET SOUND ENERGY GAS — 888-728-9343

CTLQL-CENTURYLINK — 800-778-9140

COGENT COMMUNICATIONS, INC — 800-521-0579

TOLEDO TELEPHONE COMPANY — 360-864-4552

ASTOUND BROADBAND — 800-778-9140

CITY OF WINLOCK — 360-785-3811

Lincoln County

AVISTA — 888-728-9343

INLAND POWER & LIGHT — 888-728-9343

TOWN OF WILBUR — 509-647-5821

Mason County

COMCAST CABLE — 385-977-0510

CASCADE NATURAL GAS - ABERDEEN — 360-538-3941

COLONY SURF WATER — 360-223-0745

HOOD CANAL COMMUNICATIONS — 360-829-5166

MASON COUNTY PUD 1 - POWER — 360-829-5166

MASON PUD 3 — 360-829-5166

CTLQL-CENTURYLINK — 800-778-9140

SHORECREST ESTATES WATER — 360-426-0773

CITY OF SHELTON — 360-426-7746

PORT OF SHELTON — 360-490-6448

WSDOT OLYMPIC REGION-AREA 2 — 360-874-3050

Okanogan County

OKANOGAN COUNTY ELECTRIC COOP — 509-996-2228

OKANOGAN COUNTY DPW — 509-422-7300

OKANOGAN COUNTY PUD #1 — 509-422-3310

CTLQL-CENTURYLINK — 800-778-9140

TOWN OF WINTHROP — 509-996-2320

WA ST DOT - N CENTRAL REG — 509-667-3085

ZIPLY FIBER — 503-255-4634

Pacific County

COMCAST CABLE — 385-977-0510

CHARTER COMMUNICATIONS — 888-728-9343

COUNTY OF PACIFIC PUB WKS — 360-875-9368

NASELLE WATER COMPANY — 360-484-3815

NORTH BEACH WATER DISTRICT — 360-665-4144

PUD #2 OF PACIFIC COUNTY — 360-942-2411

PUD #2 OF PACIFIC COUNTY — 360-642-3191

CTLQL-CENTURYLINK — 800-778-9140

CITY OF RAYMOND — 360-942-4107

WAHKIAKUM WEST TELEPHONE — 360-465-2211

Pend Oreille County

MIFIBER, LLC. — 800-778-9140

PEND OREILLE COUNTY PUD#1 — 360-421-2278

PEND OREILLE COUNTY PUD#1 — 509-447-3137

PEND OREILLE TEL COMPANY — 888-636-2840

CTLQL-CENTURYLINK — 800-778-9140

SACHEEN LAKE WATER SEWER DIST. — 509-671-6019

WA DOT - EASTERN REGION — 509-324-6555

ZIPLY FIBER — 503-255-4634

Pierce County

LEVEL 3 NOW LUMEN — 877-366-8344

LAKEWOOD WATER DISTRICT — 253-588-4423

MASHELL TELECOM/RAINIER CONNEC — 253-262-3211

MCI — 800-289-3427

PIERCE COUNTY PW- TRAFFIC DIV. — 253-798-8000

PENINSULA LIGHT COMPANY — 800-762-0592

PIERCE COUNTY PPW SEWERS — 253-798-7000

PARKLAND LIGHT & WATER CO — 253-531-5666

PUGET SOUND ENERGY ELECTRIC — 888-728-9343

PUGET SOUND ENERGY GAS — 888-728-9343

CITY OF PUYALLUP — 253-841-5505

CTLQL-CENTURYLINK — 800-778-9140

RAINIER CONNECT NORTH — 253-262-3211

SPANAWAY WATER COMPANY INC. — 253-531-9024

COGENT COMMUNICATIONS, INC — 800-521-0579

SUMMIT WATER & SUPPLY — 253-537-7781

TS/SL TACOMA SIGNAL AND LIGHTS — 253-255-2443

TACOMA WATER DEPARTMENT — 253-502-8398

TACOMA PWR & CLICK NETWORK — 253-502-8263

TACOMA ENVIRON. SERVICES DEPT. — 253-591-5585

THURSTON CO PUD #1 — 360-357-8783

CONOCO PHILLIPS — 253-627-3878

TMG - SEAPORT SOUND TERMINAL — 253-272-9348

AIR PRODUCTS MFG CORP — 253-845-4000

COMCAST CABLE — 385-977-0510

CITY OF LAKEWOOD PW — 253-377-8034

ELMHURST MUTUAL P & L — 360-829-5166

FORGED FIBER 37 LLC — 800-778-9140

CITY OF FIFE — 253-922-9315

CITY OF GIG HARBOR — 253-851-8999

CITY OF GIG HARBOR — 253-851-8406

San Juan County

ORCAS POWER & LIGHT COOP — 360-376-3510

CTLQL-CENTURYLINK — 800-778-9140

SAN JUAN COUNTY DPW — 360-370-0500

Skagit County

CITY OF ANACORTES — 360-293-1921

BLANCHARD-EDISON WATER ASSOC. — 360-708-3468

COMCAST CABLE — 385-977-0510

CASCADE NATURAL GAS-MT VERNON — 360-336-6156

CITY OF MOUNT VERNON — 360-336-6204

TOWN OF LA CONNER — 360-770-4536

BP/OLYMPIC PIPE LINE COMPANY — 888-271-8880

PUGET SOUND ENERGY ELECTRIC — 888-728-9343

CITY OF SEDRO WOOLLEY — 360-856-1100

SKAGIT CO SWR DIST#2 — 360-422-8373

SKAGIT PUD NO. 1 — 360-424-7104

ASTOUND BROADBAND — 800-778-9140

ZIPLY FIBER — 503-255-4634

Skamania County

AVISTA — 800-227-9187

COWLITZ COUNTY PUD — 360-501-9546

CITY OF NORTH BONNEVILLE — 541-400-8437

NW NATURAL — 971-277-4474

NORTHWEST WATER SYSTEMS, INC — 360-876-0958

CTLQL-CENTURYLINK — 800-778-9140

SKAMANIA COUNTY DPW — 509-427-3910

SKAMANIA CO. PUD — 509-427-5126

CITY OF STEVENSON — 509-427-5970

TDS TELECOM-LEWIS RVR TEL CO — 800-778-9140

THE PORT OF WOODLAND — 800-778-9140

ASTOUND BROADBAND — 800-778-9140

WILLIAMS NW PIPELINE — 800-972-7733

ZIPLY FIBER — 503-255-4634

Snohomish County

ALDERWOOD WTR & WASTEWTR — 425-787-0250

CITY OF ARLINGTON — 360-403-3526

CITY OF BOTHELL — 425-471-2475

CITY OF BRIER PUBLIC WORKS — 425-775-5440

COMCAST CABLE — 385-977-0510

CASCADE NATURAL GAS-MT VERNON — 360-336-6156

CROSS VALLEY WATER DISTRICT — 360-668-6766

CITY OF EVERETT — 425-760-2172

KING CNTY METRO SEWER — 206-263-5722

LEVEL 3 NOW LUMEN — 877-366-8344

LAKE STEVENS SEWER DISTRICT — 425-334-8588

CITY OF MARYSVILLE — 425-754-8292

MCI — 800-289-3427

WINDSTREAM COMMUNICATIONS — 800-289-1901

CITY OF MONROE — 360-794-7400

ZAYO BANDWIDTH — 800-961-6500

PUGET SOUND ENERGY GAS — 888-728-9343

SNOHOMISH COUNTY PUBLIC WORKS — 425-388-7551

SILVER LAKE WATER DISTRICT — 425-337-3647

CITY OF SNOHOMISH — 360-568-7377

SNOHOMISH PUD #1 ELEC — 800-778-9140

SNOHOMISH COUNTY P.U.D.- WATER — 425-397-3000

COGENT COMMUNICATIONS, INC — 800-521-0579

ASTOUND BROADBAND — 800-778-9140

WSDOT MTCE AREA 3 — 425-258-8300

WSDOT MTCE AREA 5 — 425-739-3700

WILLIAMS NW PIPELINE — 800-972-7733

WSDOT - SIGNAL BRANCH — 206-442-2110

ZIPLY FIBER — 503-255-4634

Spokane County

SPOKANE CO ENVIRONMENTAL SERVI — 509-459-9330

SPOKANE COUNTY WATER DIST #3 — 509-536-0121

TDS METROCOM LLC — 800-778-9140

WHITWORTH WATER DIST #2 — 509-466-7511

WILLIAMS NW PIPELINE — 509-434-9154

WASHINGTON STATE DOT — 509-324-6555

ZIPLY FIBER — 503-255-4634

AT&T CORP — 800-252-1133

AVISTA — 888-728-9343

COMCAST CABLE — 385-977-0510

CITY OF MEDICAL LAKE — 509-299-7715

CITY OF LIBERTY LAKE — 509-499-9780

DAVIS COMMUNICATIONS — 509-624-7129

CITY OF DEER PARK — 509-276-8802

FORGED FIBER 37 LLC — 800-778-9140

ZAYO BANDWIDTH — 800-961-6500

INLAND POWER & LIGHT — 888-728-9343

KNIGHTCOM — 509-999-5620

LIBERTY LK SWR & WTR DIST — 509-922-5443

MCI — 800-289-3427

TRANS CANADA GTN SYSTEM — 888-648-6427

PASADENA PARK IRR DIST17 — 509-926-5535

CTLQL-CENTURYLINK — 800-778-9140

SPOKANE COUNTY ENG-RDS — 509-477-3600

CITY OF SPOKANE PUBLIC WORKS — 509-625-7800

Stevens County

AVISTA — 888-728-9343

CHARTER COMMUNICATIONS — 888-728-9343

CITY OF CHEWELAH — 509-935-8311

CITY OF COLVILLE WTR/SWR DEPT — 509-684-2244

INLAND POWER & LIGHT — 888-728-9343

CITY OF KETTLE FALLS — 509-738-6821

CTLQL-CENTURYLINK — 800-778-9140

PUD #1 OF STEVENS COUNTY — 509-233-2534

Thurston County

COMCAST CABLE — 385-977-0510

CITY OF LACEY — 360-491-5644

CITY OF OLYMPIA — 360-507-6305

BP/OLYMPIC PIPE LINE COMPANY — 888-271-8880

PUGET SOUND ENERGY, ELECTRIC — 888-728-9343

PUGET SOUND ENERGY GAS — 888-728-9343

PUGET SOUND ENERGY — 888-728-9343

CTLQL-CENTURYLINK — 800-778-9140

ROCHESTER WATER DIST — 360-273-9688

THURSTON CO STORMWATER UTILITY — 360-490-9650

THURSTON CO PUD #1 — 360-357-8783

CITY OF TUMWATER — 360-754-4150

WASHINGTON WATER SERVICES — 360-491-3760

WSDOT ITD — 360-705-7694

ZIPLY FIBER — 503-255-4634

Wahkiakum County

CHARTER COMMUNICATIONS — 888-728-9343

PUD #1 OF WAHKIAKUM COUNTY — 360-795-3266

CTLQL-CENTURYLINK — 800-778-9140

WAHKIAKUM WEST TELEPHONE — 360-465-2211

Walla Walla County

CASCADE NAT GAS-WALLA WALLA — 509-524-1880

CASCADE NATURAL GAS-KENNEWICK — 509-783-7361

COLUMBIA ENERGY LLC — 509-526-4041

COLUMBIA REA, INC — 509-526-4041

PACIFIC POWER — 425-392-6412

CTLQL-CENTURYLINK — 800-778-9140

CHARTER COMMUNICATIONS — 888-728-9343

CITY OF WALLA WALLA — 509-527-4380

WALLA WALLA PUB WKS — 509-524-2710

ZIPLY FIBER — 503-255-4634

Whatcom County

BIRCH BAY WATER & SEWER DIST — 360-371-7100

CITY OF BELLINGHAM — 360-325-5131

COMCAST CABLE — 385-977-0510

CASCADE NATURAL GAS-BELLINGH — 360-733-5981

FORGED FIBER 37 LLC — 800-778-9140

CITY OF FERNDALE — 360-815-2889

NORTH STAR WATER ASSN. — 360-739-4144

BP/OLYMPIC PIPE LINE COMPANY — 888-271-8880

ORCHARD WATER ASSOCIATION — 360-815-4023

PUGET SOUND ENERGY ELECTRIC — 888-728-9343

CTLQL-CENTURYLINK — 800-778-9140

LK WHATCOM WTR&SWR DIST — 360-734-9224

WSDOT MTCE AREA 1 — 360-788-2500

WSDOT - SIGNAL BRANCH — 206-442-2110

ZIPLY FIBER — 503-255-4634

Whitman County

AVISTA — 888-728-9343

AVISTA — 406-728-9343

CHARTER SPECTRUM — 888-728-9343

CITY OF COLFAX — 509-397-3861

INLAND POWER & LIGHT — 888-728-9343

PORT OF WHITMAN COUNTY — 888-728-9343

CITY OF PULLMAN — 509-338-3241

CTLQL-CENTURYLINK — 800-778-9140

CHARTER COMMUNICATIONS — 888-728-9343

WILLIAMS NW PIPELINE — 800-972-7733

WASHINGTON STATE DOT — 509-324-6555

ZIPLY FIBER — 503-255-4634

Yakima County

BENTON REA — 509-786-2913

CHARTER COMMUNICATIONS — 888-728-9343

CASCADE NATURAL GAS-YAKIMA — 509-457-8176

CASCADE NATURAL GAS-SUNNYSIDE — 509-457-8176

CITY OF GRANDVIEW, PW DEPT — 509-882-9211

NACHES-COWICHE CANAL CO — 509-930-9001

NOB HILL WATER — 509-966-0272

PACIFIC POWER — 425-392-6412

CTLQL-CENTURYLINK — 800-778-9140

CITY OF SUNNYSIDE — 509-837-8399

SUNNYSIDE VALLEY IRRIG DIST — 509-831-5086

TOWN OF GRANGER — 509-854-2770

CITY OF UNION GAP — 509-248-0434

CITY OF WAPATO — 509-877-2334

CITY OF YAKIMA — 509-575-6154

YAKIMA SIGNAL DEPARTMENT — 509-576-6425

YAKIMA COUNTY ROAD MAINTENANCE — 509-574-2396

YAKIMA COUNTY TECHNOLOGY SRVCS — 509-574-2034

YAKIMA-TIETON IRRIGATION DIST — 509-678-4101

ZIPLY FIBER — 503-255-4634

What 811 will not mark

811 only marks public utilities up to the meter. Washington law is explicit that an end user is responsible for locating the underground facilities they own — RCW 19.122.030(1)(d). That includes electrical to shops, barns and outbuildings, irrigation, septic lines, private water lines, gas to a pool heater or fire pit, and anything a previous owner installed.

Advanced Underground Utility Locating Inc locates the private lines 811 will not mark, across Washington, Oregon, Idaho and Montana. Spokane and Eastern Washington: 509-710-2621. Seattle, Tacoma and Portland: 509-954-8623. Emergency service is available 24 hours.

Source: Washington 811 operator listings, compiled September 2026. Numbers change, so verify with Washington 811 before relying on any listing.