AQUAVEIN · BASIN RECORDS

Every basin's permitted line

98 California basins with adopted minimum thresholds, from the state's own records. The generation date is printed at the foot of this page.

The permitted line, by basin

Each basin below links to its own page. The threshold-depth range is the depth to water the adopted plan permits, drawn from the state's monitoring network; the median is shown in parentheses.

Basin	State sites	Program	Threshold depth range (ft)
6-012.01 Owens Valley	92	ADJ/GSP	-50–3670 (med 25)
5-022.18 White Wolf	20	GSP	270–1073 (med 571)
5-022.14 Kern County	235	GSP	-1–1031 (med 395)
4-008 Las Posas Valley	81	GSP	91–899 (med 466)
3-013 Cuyama Valley	74	GSP	40–731 (med 331)
1-052 Ukiah Valley	33	GSP	525–724 (med 564)
5-022.09 Westside	104	GSP	94–685 (med 409)
7-021.04 San Gorgonio Pass	19	GSP	77–674 (med 374)
5-022.13 Tule	89	GSP	134–646 (med 335)
5-022.10 Pleasant Valley	8	GSP	424–639 (med 527)
7-024.01 Borrego Springs	30	ALT	153–638 (med 319)
7-021.02 Mission Creek	17	ALT	102–617 (med 335)
9-007.01 Upper San Luis Rey Valley	31	GSP	163–601 (med 203)
8-004.01 Elsinore Valley	40	GSP	19–600 (med 111)
5-022.12 Tulare Lake	78	GSP	40–518 (med 210)
8-004.02 Bedford-Coldwater	17	GSP	64–505 (med 78)
4-004.06 Piru	104	GSP	71–502 (med 310)
8-002.07 Yucaipa	74	ADJ/GSP	-22–480 (med 368)
5-022.07 Delta-Mendota	271	GSP	30–473 (med 98)
5-022.11 Kaweah	119	GSP	28–463 (med 219)
3-027 Santa Margarita	44	GSP	16–453 (med 245)
5-022.06 Madera	92	GSP	-137–409 (med 179)
3-015 Santa Ynez River Valley	77	GSP	12–405 (med 92)
4-004.05 Fillmore	168	GSP	12–400 (med 300)
3-004.10 Monterey	60	ADJ/GSP	34–397 (med 118)
3-002.01 Pajaro Valley	59	ALT	4–391 (med 52)
3-001 Santa Cruz Mid-County	148	GSP	-7–379 (med 69)
5-022.05 Chowchilla	72	GSP	44–376 (med 216)
5-022.04 Merced	363	GSP	16–374 (med 105)
7-021.01 Indio	60	ALT/GSP	8–373 (med 164)
6-054 Indian Wells Valley	213	GSP	145–371 (med 243)
5-022.15 Tracy	64	ALT/GSP	5–360 (med 27)
5-022.08 Kings	263	GSP	24–354 (med 166)
3-004.06 Paso Robles Area	18	GSP	90–349 (med 187)
4-006 Pleasant Valley	42	GSP	62–337 (med 122)
5-006.01 Bowman	7	GSP	100–330 (med 130)
8-005 San Jacinto	305	ADJ/GSP	204–327 (med 233)
3-004.02 East Side Aquifer	38	GSP	59–325 (med 165)
4-002 Ojai Valley	44	GSP	132–317 (med 233)
4-004.07 Santa Clara River Valley East	22	GSP	18–314 (med 92)
Unassigned in source (no basin name on record)	95	ADJ/ALT/GSP	6–302 (med 64)
4-007 Arroyo Santa Rosa Valley	18	GSP	112–300 (med 168)
5-029 Castac Lake Valley	5	GSP	28–295 (med 174)
5-021.52 Colusa	52	GSP	33–293 (med 69)
5-022.03 Turlock	116	GSP	9–289 (med 81)
5-004 Big Valley	35	GSP	159–288 (med 184)
3-018 Carpinteria	70	GSP	73–286 (med 148)
4-011.01 Santa Monica	41	GSP	137–280 (med 255)
4-004.03 Mound	21	GSP	27–280 (med 171)
5-021.56 Los Molinos	10	GSP	70–270 (med 100)
3-004.09 Langley Area	14	GSP	49–267 (med 122)
3-004.11 Atascadero Area	24	GSP	22–258 (med 85)
5-021.51 Corning	132	GSP	48–256 (med 103)
5-022.01 Eastern San Joaquin	70	GSP	24–245 (med 128)
8-002.09 Temescal	23	GSP	68–239 (med 153)
3-014 San Antonio Creek Valley	54	GSP	62–238 (med 130)
2-010 Livermore Valley	235	ALT	12–226 (med 180)
2-002.02 Sonoma Valley	81	GSP	12–225 (med 66)
5-021.65 South American	45	GSP	13–223 (med 69)
5-022.02 Modesto	62	GSP	18–218 (med 70)
5-021.57 Vina	75	GSP	93–210 (med 122)
3-049 Montecito	61	GSP	16–207 (med 85)
1-055.01 Santa Rosa Plain	94	GSP	15–200 (med 37)
3-004.04 Forebay Aquifer	40	GSP	-25–200 (med 73)
5-022.16 Cosumnes	28	GSP	23–195 (med 122)
4-013 San Gabriel Valley	68	ADJ/GSP	74–193 (med 150)
5-021.50 Red Bluff	8	GSP	100–190 (med 158)
3-003.05 North San Benito	117	GSP	44–184 (med 103)
5-021.69 Wyandotte Creek	13	GSP	54–183 (med 90)
5-021.64 North American	142	GSP	3–179 (med 40)
5-021.67 Yolo	93	GSP	-36–177 (med 69)
3-009 San Luis Obispo Valley	37	GSP	13–173 (med 57)
1-004 Shasta Valley	15	GSP	9–166 (med 49)
3-004.01 180/400 Foot Aquifer	101	GSP	0–166 (med 63)
5-006.03 Anderson	40	GSP	20–162 (med 62)
5-012.01 Sierra Valley	32	GSP	3–161 (med 42)
5-006.04 Enterprise	20	GSP	30–158 (med 114)
9-010 San Pasqual Valley	14	GSP	32–151 (med 80)
1-003 Butte Valley	10	GSP	34–145 (med 78)
3-004.05 Upper Valley Aquifer	18	GSP	19–134 (med 64)
5-021.61 South Yuba	66	GSP	27–131 (med 77)
4-004.02 Oxnard	290	GSP	4–129 (med 31)
2-002.01 Napa Valley	51	GSP	13–126 (med 35)
1-002.01 Tulelake	23	GSP	16–120 (med 34)
5-022.19 East Contra Costa	46	GSP	-48–119 (med 6)
2-001 Petaluma Valley	31	GSP	17–119 (med 57)
2-009.04 East Bay Plain	29	GSP	50–117 (med 66)
4-003.01 Upper Ventura River	37	GSP	27–109 (med 62)
5-021.70 Butte	58	ADJ/GSP	26–107 (med 49)
5-015 Big Valley	49	GSP	16–100 (med 28)
5-021.62 Sutter	64	GSP	11–90 (med 28)
1-005 Scott River Valley	31	GSP	8–89 (med 24)
5-021.66 Solano	50	GSP	-126–87 (med 17)
5-021.60 North Yuba	48	GSP	72–80 (med 76)
5-012.02 Chilcoot	4	GSP	12–56 (med 23)
1-010 Eel River Valley	53	GSP	17–51 (med 32)
8-002.08 San Timoteo, 8-002.07 Yucaipa	3	GSP	38–38 (med 38)
6-012.02 Fish Slough	3	GSP	4–29 (med 13)

AQUAVEIN · THE PARCEL-LEVEL GROUNDWATER DUE DILIGENCE · SOURCES: DWR WELL COMPLETION REPORTS · DWR/CNRA PERIODIC GWL · DWR SGMA MONITORING NETWORK MODULE · ADWR GWSI · NASA/NDMC GRACE-DA · METHODOLOGY PUBLISHED · WE GRADE "STABLE" WHEN THE DATA SAYS STABLE · PAGE GENERATED 2026-07-15