Tool Box

Bulletin 118 Groundwater Basin Descriptions

This is an IWRIS tool that allows the user easy access to groundwater basin description available in DWR Bulletin 118. You can click on the link below to download all the pdf files of the basin descriptions as a zip file or you can download the individual pdf files for a selected basin by right clicking on the links below.

Please note that the zip file is being created on the fly using the latest pdf files on the DWR Bulletin 118 website. Therefore, it may few minutes to create the zip file and download it.

You can sort the list below by clicking on the "Subbasin No." and "Subbasin Name" links.

Download all basin descriptions in one zip file (25.4 MB)

Note for the zip file(1.2 KB)

Subbasin No	Subbasin Name
Download individual PDF files
1-1	SMITH RIVER PLAIN
1-10	EEL RIVER VALLEY
1-11	COVELO ROUND VALLEY
1-12	LAYTONVILLE VALLEY
1-13	LITTLE LAKE VALLEY
1-14	LOWER KLAMATH RIVER VALLEY
1-15	HAPPY CAMP TOWN AREA
1-16	SEIAD VALLEY
1-17	BRAY TOWN AREA
1-18	RED ROCK VALLEY
1-19	ANDERSON VALLEY
1-2	KLAMATH RIVER VALLEY
1-2.01	TULE LAKE
1-2.02	LOWER KLAMATH
1-20	GARCIA RIVER VALLEY
1-21	FORT BRAGG TERRACE AREA
1-22	FAIRCHILD SWAMP VALLEY
1-25	PRAIRIE CREEK AREA
1-26	REDWOOD CREEK AREA
1-27	BIG LAGOON AREA
1-28	MATTOLE RIVER VALLEY
1-29	HONEYDEW TOWN AREA
1-3	BUTTE VALLEY
1-30	PEPPERWOOD TOWN AREA
1-31	WEOTT TOWN AREA
1-32	GARBERVILLE TOWN AREA
1-33	LARABEE VALLEY
1-34	DINSMORES TOWN AREA
1-35	HYAMPOM VALLEY
1-36	HETTENSHAW VALLEY
1-37	COTTONEVA CREEK VALLEY
1-38	LOWER LAYTONVILLE VALLEY
1-39	BRANSCOMB TOWN AREA
1-4	SHASTA VALLEY
1-40	TEN MILE RIVER VALLEY
1-41	LITTLE VALLEY
1-42	SHERWOOD VALLEY
1-43	WILLIAMS VALLEY
1-44	EDEN VALLEY
1-45	BIG RIVER VALLEY
1-46	NAVARRO RIVER VALLEY
1-48	GRAVELLEY VALLEY
1-49	ANAPOLIS OHLSON RANCH FORMATION HIGHLANDS
1-5	SCOTT RIVER VALLEY
1-50	KNIGHTS VALLEY
1-51	POTTER VALLEY
1-52	UKIAH VALLEY
1-53	SANEL VALLEY
1-54	ALEXANDER VALLEY
1-54.01	ALEXANDER AREA
1-54.02	CLOVERDALE AREA
1-55	SANTA ROSA VALLEY
1-55.01	SANTA ROSA PLAIN
1-55.02	HEALDSBURG AREA
1-55.03	RINCON VALLEY
1-56	McDOWELL VALLEY
1-57	BODEGA BAY AREA
1-59	WILSON GROVE FORMATION HIGHLANDS
1-6	HAYFORK VALLEY
1-60	LOWER RUSSIAN RIVER VALLEY
1-61	FORT ROSS TERRACE DEPOSITS
1-62	WILSON POINT AREA
1-7	HOOPA VALLEY
1-8	MAD RIVER VALLEY
1-8.01	MAD RIVER LOWLAND
1-8.02	DOWS PRAIRIE SCHOOL AREA
1-9	EUREKA PLAIN
2-1	PETALUMA VALLEY
2-10	LIVERMORE VALLEY
2-11	SUNOL VALLEY
2-19	KENWOOD VALLEY
2-2	NAPA-SONOMA VALLEY
2-2.01	NAPA VALLEY
2-2.02	SONOMA VALLEY
2-2.03	NAPA-SONOMA LOWLANDS
2-22	HALF MOON BAY TERRACE
2-24	SAN GREGORIO VALLEY
2-26	PESCADERO VALLEY
2-27	SAND POINT AREA
2-28	ROSS VALLEY
2-29	SAN RAFAEL VALLEY
2-3	SUISUN-FAIRFIELD VALLEY
2-30	NOVATO VALLEY
2-31	ARROYO DEL HAMBRE VALLEY
2-32	VISITATION VALLEY
2-33	ISLAIS VALLEY
2-35	MERCED VALLEY
2-36	SAN PEDRO VALLEY
2-37	SOUTH SAN FRANCISCO
2-38	LOBOS
2-39	MARINA
2-4	PITTSBURG PLAIN
2-40	DOWNTOWN SAN FRANCISCO
2-5	CLAYTON VALLEY
2-6	YGNACIO VALLEY
2-7	SAN RAMON VALLEY
2-8	CASTRO VALLEY
2-9	SANTA CLARA VALLEY
2-9.01	NILES CONE SUBBASIN
2-9.02	SANTA CLARA SUBBASIN
2-9.03	SAN MATEO PLAIN SUBBASIN
2-9.04	EAST BAY PLAIN
3-1	SOQUEL VALLEY
3-12	SANTA
3-13	CUYAMA VALLEY
3-14	SAN ANTONIO CREEK VALLEY
3-15	SANTA YNEZ RIVER VALLEY
3-16	GOLETA
3-17	SANTA BARBARA
3-18	CARPINTERIA
3-19	CARRIZO PLAIN
3-2	PAJARO VALLEY
3-20	ANO NUEVO AREA
3-21	SANTA CRUZ PURISIMA FORMATION
3-22	SANTA ANA VALLEY
3-23	UPPER SANTA ANA VALLEY
3-24	QUIEN SABE VALLEY
3-25	TRES PINOS VALLEY
3-26	WEST SANTA CRUZ TERRACE
3-27	SCOTTS VALLEY
3-28	SAN BENITO RIVER VALLEY
3-29	DRY LAKE VALLEY
3-3	GILROY-HOLLISTER VALLEY
3-3.01	LLAGAS SUBBASIN
3-3.02	BOSLA AREA
3-3.03	HOLLISTER AREA SUBBASIN
3-3.04	SAN JUAN BAUTISTA AREA SUBBASIN
3-30	BITTER WATER VALLEY
3-31	HERNANDEZ VALLEY
3-32	PEACH TREE VALLEY
3-33	SAN CARPOFORO VALLEY
3-34	ARROYO DE LA CRUZ VALLEY
3-35	SAN SIMEON VALLEY
3-36	SANTA ROSA VALLEY
3-37	VILLA VALLEY
3-38	CAYUCOS VALLEY
3-39	OLD VALLEY
3-4	SALINAS VALLEY
3-4.01	180/400 Foor Aquifer
3-4.02	East Side Aquifer
3-4.04	Forebay Aquifer
3-4.05	Upper Valley Aquifer
3-4.06	Paso Robles Area
3-4.08	Seaside Area
3-4.09	Langley Area
3-4.10	Corral de Tierra Area
3-40	TORO VALLEY
3-41	MORRO VALLEY
3-42	CHORRO VALLEY
3-43	RINCONADA VALLEY
3-44	POZO VALLEY
3-45	HUASNA VALLEY
3-46	RAFAEL VALLEY
3-47	BIG SPRING AREA
3-49	MONTECITO
3-5	CHOLAME VALLEY
3-50	FELTON AREA
3-51	MAJORS CREEK
3-52	NEEDLE ROCK POINT
3-53	FOOTHILL
3-6	LOCKWOOD VALLEY
3-7	CARMEL VALLEY
3-8	LOS OSOS VALLEY
3-9	SAN LUIS OBISPO VALLEY
4-1	UPPER OJAI VALLEY
4-10	CONEJO VALLEY
4-11	COASTAL PLAIN OF LOS ANGELES
4-11.01	SANTA MONICA
4-11.02	HOLLYWOOD
4-11.03	WEST COAST SUBBASIN
4-11.04	CENTRAL SUBBASIN
4-12	SAN FERNANDO VALLEY
4-13	SAN GABRIEL VALLEY
4-15	TIERRA REJADA
4-16	HIDDEN VALLEY
4-17	LOCKWOOD VALLEY
4-18	HUNGRY VALLEY
4-19	THOUSAND OAKS AREA
4-2	OJAI VALLEY
4-20	RUSSELL VALLEY
4-22	MALIBU VALLEY
4-23	RAYMOND
4-3	VENTURA RIVER VALLEY
4-3.01	UPPER VENTURA RIVER
4-3.02	LOWER VENTURA RIVER
4-4	SANTA CLARA RIVER VALLEY
4-4.02	OXNARD SUBBASIN
4-4.03	MOUND SUBBASIN
4-4.04	SANTA PAULA SUBBASIN
4-4.05	FILLMORE SUBBASIN
4-4.06	PIRU SUBBASIN
4-4.07	SANTA CLARA EAST SUBBASIN
4-5	ACTON VALLEY
4-6	PLEASANT VALLEY
4-7	ARROYO SANTA ROSA VALLEY
4-8	LAS POSAS VALLEY
4-9	SIMI VALLEY
5-1	GOOSE LAKE VALLEY
5-1.01	LOWER GOOSE LAKE VALLEY
5-1.02	FANDANGO VALLEY
5-10	AMERICAN VALLEY
5-11	MOHAWK VALLEY
5-12	SIERRA VALLEY
5-12.01	SIERRA VALLEY
5-12.02	CHILCOOT
5-13	UPPER LAKE VALLEY
5-14	SCOTTS VALLEY
5-15	KELSEYVILLE VALLEY
5-16	HIGH VALLEY
5-17	BURNS VALLEY
5-18	COYOTE VALLEY
5-19	COLLAYOMI VALLEY
5-2	ALTURAS AREA
5-2.01	SOUTH FORK PITT RIVER
5-2.02	WARM SPRINGS VALLEY
5-20	BERRYESSA VALLEY
5-21	SACRAMENTO VALLEY
5-21.50	RED BLUFF SUBBASIN
5-21.51	CORNING SUBBASIN
5-21.52	COLUSA SUBBASIN
5-21.53	BEND SUBBASIN
5-21.54	ANTELOPE SUBBASIN
5-21.55	DYE CREEK SUBBASIN
5-21.56	LOS MOLINOS SUBBASIN
5-21.57	VINA SUBBASIN
5-21.58	WEST BUTTE SUBBASIN
5-21.59	EAST BUTTE SUBBASIN
5-21.60	NORTH YUBA SUBBASIN
5-21.61	SOUTH YUBA SUBBASIN
5-21.62	SUTTER SUBBASIN
5-21.64	NORTH AMERICAN SUBBASIN
5-21.65	SOUTH AMERICAN SUBBASIN
5-21.66	SOLANO SUBBASIN
5-21.67	Yolo Subbasin
5-21.68	CAPAY VALLEY SUBBASIN
5-22	SAN JOAQUIN VALLEY
5-22.01	EAST SAN JOAQUIN SUBBASIN
5-22.02	MODESTO SUBBASIN
5-22.03	TURLOCK SUBBASIN
5-22.04	MERCED
5-22.05	CHOWCHILLA SUBBASIN
5-22.06	MADERA SUBBASIN
5-22.07	DELTA-MENDOTA SUBBASIN
5-22.08	KINGS SUBBASIN
5-22.09	WESTSIDE SUBBASIN
5-22.10	PLEASANT VALLEY SUBBASIN
5-22.11	KAWEAH SUBBASIN
5-22.12	TULARE LAKE SUBBASIN
5-22.13	TULE SUBBASIN
5-22.14	KERN COUNTY SUBBASIN
5-22.15	TRACY SUBBASIN
5-22.16	COSUMNES SUBBASIN
5-23	PANOCHE VALLEY
5-25	KERN RIVER VALLEY
5-26	WALKER BASIN CREEK VALLEY
5-27	CUMMINGS VALLEY
5-28	TEHACHAPI VALLEY WEST
5-29	CASTAC LAKE VALLEY
5-3	JESS VALLEY
5-30	LOWER LAKE VALLEY
5-31	LONG VALLEY
5-35	MCCLOUD AREA
5-36	ROUND VALLEY
5-37	TOAD WELL AREA
5-38	PONDOSA TOWN AREA
5-4	BIG Valley Basin
5-40	HOT SPRINGS VALLEY
5-41	EGG LAKE VALLEY
5-43	ROCK PRAIRIE VALLEY
5-44	LONG VALLEY
5-45	CAYTON VALLEY
5-46	LAKE BRITTON AREA
5-47	GOOSE VALLEY
5-48	BURNEY CREEK VALLEY
5-49	DRY BURNEY CREEK VALLEY
5-5	FALL RIVER VALLEY
5-50	NORTH FORK BATTLE CREEK
5-51	BUTTE CREEK VALLEY
5-52	GRAY VALLEY
5-53	DIXIE VALLEY
5-54	ASH VALLEY
5-56	YELLOW CREEK VALLEY
5-57	LAST CHANCE CREEK VALLEY
5-58	CLOVER VALLEY
5-59	GRIZZLY VALLEY
5-6	REDDING AREA
5-6.01	BOWMAN SUBBASIN
5-6.02	ROSEWOOD SUBBASIN
5-6.03	ANDERSON SUBBASIN
5-6.04	ENTERPRISE SUBBASIN
5-6.05	MILLVILLE SUBBASIN
5-6.06	SOUTH BATTLE CREEK SUBBASIN
5-60	HUMBUG VALLEY
5-61	CHROME TOWN AREA
5-62	ELK CREEK AREA
5-63	STONYFORD TOWN AREA
5-64	BEAR VALLEY
5-65	LITTLE INDIAN VALLEY
5-66	CLEAR LAKE CACHE FORMATION
5-68	POPE VALLEY
5-69	YOSEMITE VALLEY
5-7	LAKE ALMANOR VALLEY
5-70	LOS BANOS CREEK VALLEY
5-71	VALLECITOS CREEK VALLEY
5-8	MOUNTAIN MEADOWS VALLEY
5-80	BRITE VALLEY
5-82	CUDDY CANYON VALLEY
5-83	CUDDY RANCH AREA
5-84	CUDDY VALLEY
5-85	MIL POTRERO AREA
5-86	JOSEPH CREEK
5-87	MIDDLE FORK FEATHER RIVER
5-88	STONY GORGE RESERVOIR
5-89	SQUAW FLAT
5-9	INDIAN VALLEY
5-90	FUNKS CREEK
5-91	ANTELOPE CREEK
5-92	BLANCHARD VALLEY
5-93	NORTH FORK CACHE CREEK
5-94	MIDDLE CREEK
5-95	MEADOW VALLEY
6-1	SURPRISE VALLEY
6-10	ADOBE LAKE VALLEY
6-100	SECRET VALLEY
6-101	BULL FLAT
6-104	LONG VALLEY
6-105	SLINKARD VALLEY
6-106	LITTLE ANTELOPE VALLEY
6-107	SWEETWATER FLAT
6-108	OLYMPIC VALLEY
6-11	LONG VALLEY
6-12	OWENS VALLEY
6-13	BLACK SPRINGS VALLEY
6-14	FISH LAKE VALLEY
6-15	DEEP SPRINGS VALLEY
6-16	EUREKA VALLEY
6-17	SALINE VALLEY
6-18	DEATH VALLEY
6-19	WINGATE VALLEY
6-2	MADELINE PLAINS
6-20	MIDDLE AMARGOSA VALLEY
6-21	LOWER KINGSTON VALLEY
6-22	UPPER KINGSTON VALLEY
6-23	RIGGS VALLEY
6-24	RED PASS VALLEY
6-25	BICYCLE VALLEY
6-26	AVAWATZ VALLEY
6-27	LEACH VALLEY
6-28	PAHRUMP VALLEY
6-29	MESQUITE VALLEY
6-3	WILLOW CREEK VALLEY
6-30	IVANPAH VALLEY
6-31	KELSO VALLEY
6-32	BROADWELL VALLEY
6-33	SODA LAKE VALLEY
6-34	SILVER LAKE VALLEY
6-35	CRONISE VALLEY
6-36	LANGFORD VALLEY
6-36.01	LANGFORD WELL LAKE
6-36.02	IRWIN
6-37	COYOTE LAKE VALLEY
6-38	CAVES CANYON VALLEY
6-4	HONEY LAKE VALLEY
6-40	LOWER MOJAVE RIVER VALLEY
6-41	MIDDLE MOJAVE RIVER VALLEY
6-42	UPPER MOJAVE RIVER VALLEY
6-43	EL MIRAGE VALLEY
6-44	ANTELOPE VALLEY
6-45	TEHACHAPI VALLEY EAST
6-46	FREMONT VALLEY
6-47	HARPER VALLEY
6-48	GOLDSTONE VALLEY
6-49	SUPERIOR VALLEY
6-5	TAHOE VALLEY
6-5.01	TAHOE VALLEY SOUTH
6-5.02	TAHOE VALLEY WEST
6-5.03	TAHOE VALLEY NORTH
6-50	CUDDEBACK VALLEY
6-51	PILOT KNOB VALLEY
6-52	SEARLES VALLEY
6-53	SALT WELLS VALLEY
6-54	INDIAN WELLS VALLEY
6-55	COSO VALLEY
6-56	ROSE VALLEY
6-57	DARWIN VALLEY
6-58	PANAMINT VALLEY
6-6	CARSON VALLEY
6-61	CAMEO AREA
6-62	RACE TRACK VALLEY
6-63	HIDDEN VALLEY
6-64	MARBLE CANYON AREA
6-65	COTTONWOOD SPRING AREA
6-66	LEE FLAT
6-67	MARTIS (TRUCKEE) VALLEY
6-68	SANTA ROSA FLAT
6-69	KELSO LANDER VALLEY
6-7	ANTELOPE VALLEY
6-70	CACTUS FLAT
6-71	LOST LAKE VALLEY
6-72	COLES FLAT
6-73	WILD HORSE MESA AREA
6-74	HARRISBURG FLATS
6-75	WILDROSE CANYON
6-76	BROWN MOUNTAIN VALLEY
6-77	GRASS VALLEY
6-78	DENNING SPRING VALLEY
6-79	CALIFORNIA VALLEY
6-8	BRIDGEPORT VALLEY
6-80	MIDDLE PARK CANYON
6-81	BUTTE VALLEY
6-82	SPRING CANYON VALLEY
6-84	GREENWATER VALLEY
6-85	GOLD VALLEY
6-86	RHODES HILL AREA
6-88	OWL LAKE VALLEY
6-89	KANE WASH AREA
6-9	MONO VALLEY
6-90	CADY FAULT AREA
6-91	COW HEAD LAKE VALLEY
6-92	PINE CREEK VALLEY
6-93	HARVEY VALLEY
6-94	GRASSHOPPER VALLEY
6-95	DRY VALLEY
6-96	EAGLE LAKE AREA
6-97	HORSE LAKE VALLEY
6-98	TULEDAD CANYON
6-99	PAINTERS FLAT
7-1	LANFAIR VALLEY
7-10	TWENTYNINE PALMS VALLEY
7-11	COPPER MOUNTAIN VALLEY
7-12	WARREN VALLEY
7-13	DEADMAN VALLEY
7-13.01	DEADMAN LAKE
7-13.02	SURPRISE SPRING
7-14	LAVIC VALLEY
7-15	BESSEMER VALLEY
7-16	AMES VALLEY
7-17	MEANS VALLEY
7-18	JOHNSON VALLEY AREA
7-18.01	SOGGY LAKE
7-18.02	UPPER JOHNSON VALLEY
7-19	LUCERNE VALLEY
7-2	FENNER VALLEY
7-20	MORONGO VALLEY
7-21	COACHELLA VALLEY
7-21.01	INDIO
7-21.02	MISSION CREEK
7-21.03	DESERT HOT SPRINGS
7-21.04	SAN GORGONIO PASS
7-22	WEST SALTON SEA
7-24	BORREGO VALLEY
7-25	OCOTILLO-CLARK VALLEY
7-26	TERWILLIGER VALLEY
7-27	SAN FELIPE VALLEY
7-28	VALLECITO-CARRIZO VALLEY
7-29	COYOTE WELLS VALLEY
7-3	WARD VALLEY
7-30	IMPERIAL VALLEY
7-31	OROCOPIA VALLEY
7-32	CHOCOLATE VALLEY
7-33	EAST SALTON SEA
7-34	AMOS VALLEY
7-35	OGILBY VALLEY
7-36	YUMA VALLEY
7-37	ARROYO SECO VALLEY
7-38	PALO VERDE VALLEY
7-39	PALO VERDE MESA
7-4	RICE VALLEY
7-40	QUIEN SABE POINT VALLEY
7-41	CALZONA VALLEY
7-42	VIDAL VALLEY
7-43	CHEMEHUEVI VALLEY
7-44	NEEDLES VALLEY
7-45	PIUTE VALLEY
7-46	CANEBRAKE VALLEY
7-47	JACUMBA VALLEY
7-48	HELENDALE FAULT VALLEY
7-49	PIPES CANYON FAULT VALLEY
7-5	CHUCKWALLA VALLEY
7-50	IRON RIDGE AREA
7-51	LOST HORSE VALLEY
7-52	PLEASANT VALLEY
7-53	HEXIE MOUNTAIN AREA
7-54	BUCK RIDGE FAULT VALLEY
7-55	COLLINS VALLEY
7-56	YAQUI WELL AREA
7-59	MASON VALLEY
7-6	PINTO VALLEY
7-61	DAVIES VALLEY
7-62	JOSHUA TREE
7-63	VANDEVENTER FLAT
7-7	CADIZ VALLEY
7-8	BRISTOL VALLEY
7-9	DALE VALLEY
8-1	COASTAL PLAIN OF ORANGE COUNTY
8-2	UPPER SANTA ANA VALLEY
8-2.01	CHINO
8-2.02	CUCAMONGA
8-2.03	RIVERSIDE-ARLINGTON
8-2.04	RIALTO-COLTON
8-2.05	CAJON
8-2.06	BUNKER HIL
8-2.07	YUCAIPA
8-2.08	SAN TIMOTEO
8-2.09	TEMESCAL
8-4	ELSINORE
8-5	SAN JACINTO
8-6	HEMET LAKE VALLEY
8-7	BIG MEADOWS VALLEY
8-8	SEVEN OAKS VALLEY
8-9	BEAR VALLEY
9-1	SAN JUAN VALLEY
9-10	SAN PASQUAL VALLEY
9-11	SANTA MARIA VALLEY
9-12	SAN DIEGUITO CREEK
9-13	POWAY VALLEY
9-14	MISSION VALLEY
9-15	SAN DIEGO RIVER VALLEY
9-16	EL CAJON VALLEY
9-17	SWEETWATER VALLEY
9-18	OTAY VALLEY
9-19	TIJUANA BASIN
9-2	SAN MATEO VALLEY
9-22	BATIQUITOS LAGOON VALLEY
9-23	SAN ELIJO VALLEY
9-24	PAMO VALLEY
9-25	RANCHITA TOWN AREA
9-27	COTTONWOOD VALLEY
9-28	CAMPO VALLEY
9-29	POTRERO VALLEY
9-3	SAN ONOFRE VALLEY
9-32	SAN MARCOS AREA
9-4	SANTA MARGARITA VALLEY
9-5	TEMECULA VALLEY
9-6	COAHUILA VALLEY
9-7	SAN LUIS REY VALLEY
9-8	WARNER VALLEY
9-9	ESCONDIDO VALLEY