Green Book Section I.C.1.a Parcel Profiles

QA/QC — Wellfield Parcels Below Baseline

Author

Inyo County Water Department

Published

February 9, 2026

1 Purpose

This page provides QA/QC output of parcel-level profiles for wellfield parcels that are chronically below baseline: cover and/or grass has been below baseline for more than 5 consecutive years (Cover_sig.counter or Grass_sig.counter > 5). Control parcels are excluded. Profiles summarize parcel attributes, significance counters, proportional grass change, and time-series trajectories for cover, grass, and shrub.

Parcels are organized by wellfield, north to south: Laws, Control, Big Pine, Taboose-Aberdeen, Thibaut Sawmill, Independence Oak, Symmes Shepherd, Bairs Georges. Control parcels are located throughout the valley, just outside the zone of pumping influence.

For On/Off pumping management and soil‑moisture thresholds, see the Soil‑Plant Water Balance and Groundwater page: https://inyo-gov.github.io/pumping-management/.

2 Parcel order

Profiled parcels are ordered by wellfield (north to south) as above, then by latitude (northern parcels first) within each group. For all parcels and filters (e.g. Cover_Yrs or Grass_Yrs > 0), see the Annual Summary parcel table. For a map of parcels, see Annual Summary.

3 Parcel Profiles (Wellfield Parcels Chronic Below Baseline — Cover or Grass > 5 Years)

Profiling 16 wellfield parcels chronic below baseline (cover or grass below baseline for more than 5 years).

3.1 1 — Parcel FSL044

Notes (standardized)

  • Type C parcel (W; Laws). Cover Δ -33%; Grass Δ -43%; Shrub Δ 9.8%.
  • Below baseline (current year): Cover, Grass
  • Last at/above baseline: Cover 2011; Grass 2010; Shrub 2025
  • Current proportions: grass 70%; shrub 30%.
  • Current cover: total 36.2%; grass 25.3%; shrub 9.8%.
  • Year-over-year: grass -5.8%; cover -12.5%; pGrass +0.07.
  • Current DTW (ft BGS): 3.2; baseline avg (1984-86): 8.5.
  • Significance counters (years below baseline): Cover 14; Grass 15

3.2 1 — Parcel FSL054

Notes (standardized)

  • Type D parcel (W; Laws). Cover Δ -18.8%; Grass Δ 45%; Shrub Δ -68.8%.
  • Below baseline (current year): Cover, Shrub
  • Last at/above baseline: Cover 2005
  • Current proportions: grass 80%; shrub 10%.
  • Current cover: total 71.2%; grass 54.9%; shrub 5%.
  • Year-over-year: grass 1.3%; cover 2.6%; pGrass +0.
  • Current DTW (ft BGS): 4.4; baseline avg (1984-86): 12.1.
  • Significance counters (years below baseline): Cover 20; Grass 0

3.3 1 — Parcel LAW035

Notes (standardized)

  • Type C parcel (W; Laws). Cover Δ -23.2%; Grass Δ -21.8%; Shrub Δ 2.4%.
  • Below baseline (current year): Cover, Grass
  • Last at/above baseline: Cover 2024; Grass 2019; Shrub 2025
  • Current proportions: grass 60%; shrub 30%.
  • Current cover: total 10%; grass 5.5%; shrub 2.4%.
  • Year-over-year: grass -6.6%; cover -24.2%; pGrass +0.22.
  • Current DTW (ft BGS): 14; baseline avg (1984-86): 20.7.
  • Significance counters (years below baseline): Cover 1; Grass 6

3.4 1 — Parcel LAW043

Notes (standardized)

  • Type E parcel (W; Laws). Cover Δ -41.6%; Grass Δ -50%; Shrub Δ 5.3%.
  • Below baseline (current year): Cover, Grass
  • Last at/above baseline: Cover 2002; Grass 2002; Shrub 2025
  • Current proportions: grass 50%; shrub 30%.
  • Current cover: total 19.6%; grass 10%; shrub 6.4%.
  • Year-over-year: grass -1.1%; cover -8.1%; pGrass +0.1.
  • Current DTW (ft BGS): 8.5; baseline avg (1984-86): 7.
  • Significance counters (years below baseline): Cover 23; Grass 23

3.5 1 — Parcel LAW052

Notes (standardized)

  • Type C parcel (W; Laws). Cover Δ -10.1%; Grass Δ -21.9%; Shrub Δ 7.2%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 1995; Shrub 2025
  • Current proportions: grass 0%; shrub 60%.
  • Current cover: total 17.7%; grass 0.4%; shrub 12.6%.
  • Year-over-year: grass -1.1%; cover -1.3%; pGrass -0.07.
  • Current DTW (ft BGS): 8.3; baseline avg (1984-86): 7.1.
  • Significance counters (years below baseline): Cover 0; Grass 30

3.6 1 — Parcel LAW082

Notes (standardized)

  • Type C parcel (W; Laws). Cover Δ 9.8%; Grass Δ -4.2%; Shrub Δ 13.1%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 1995; Shrub 2025
  • Current proportions: grass 0%; shrub 90%.
  • Current cover: total 26.1%; grass 1.5%; shrub 22.8%.
  • Year-over-year: grass 0.6%; cover 6.5%; pGrass +0.
  • Current DTW (ft BGS): 8.9; baseline avg (1984-86): 12.4.
  • Significance counters (years below baseline): Cover 0; Grass 30

3.7 3 — Parcel FSP006

Notes (standardized)

  • Type AC parcel (W; Big Pine). Cover Δ 6.4%; Grass Δ -15.8%; Shrub Δ 22%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 1990; Shrub 2025
  • Current proportions: grass 20%; shrub 80%.
  • Current cover: total 30.1%; grass 5.5%; shrub 24.5%.
  • Year-over-year: grass -2.8%; cover 5.2%; pGrass -0.1.
  • Current DTW (ft BGS): 5.5; baseline avg (1984-86): 12.4.
  • Significance counters (years below baseline): Cover 0; Grass 35

3.8 4 — Parcel BLK142

Notes (standardized)

  • Type C parcel (W; Taboose-Aberdeen). Cover Δ -4.2%; Grass Δ -9.9%; Shrub Δ 5.6%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 2010; Shrub 2025
  • Current proportions: grass 30%; shrub 70%.
  • Current cover: total 21.8%; grass 7.4%; shrub 14.4%.
  • Year-over-year: grass -2%; cover -4.1%; pGrass +0.01.
  • Current DTW (ft BGS): 5.1; baseline avg (1984-86): 6.8.
  • Significance counters (years below baseline): Cover 0; Grass 15

3.9 4 — Parcel TIN050

Notes (standardized)

  • Type C parcel (W; Taboose-Aberdeen). Cover Δ 4.7%; Grass Δ -15.3%; Shrub Δ 20.8%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 2008; Shrub 2025
  • Current proportions: grass 40%; shrub 60%.
  • Current cover: total 41%; grass 19%; shrub 21.9%.
  • Year-over-year: grass -0.6%; cover 1.8%; pGrass -0.03.
  • Current DTW (ft BGS): 9.1; baseline avg (1984-86): 9.5.
  • Significance counters (years below baseline): Cover 0; Grass 17

3.10 4 — Parcel TIN053

Notes (standardized)

  • Type A parcel (W; Taboose-Aberdeen). Cover Δ -0.4%; Grass Δ -12.9%; Shrub Δ 12.5%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 2011; Shrub 2025
  • Current proportions: grass 50%; shrub 50%.
  • Current cover: total 34.6%; grass 17.3%; shrub 17.3%.
  • Year-over-year: grass 0.8%; cover 6.2%; pGrass -0.06.
  • Current DTW (ft BGS): 3.9; baseline avg (1984-86): 14.
  • Significance counters (years below baseline): Cover 0; Grass 14

3.11 4 — Parcel TIN064

Notes (standardized)

  • Type C parcel (W; Taboose-Aberdeen). Cover Δ 1.5%; Grass Δ -11.5%; Shrub Δ 13.2%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 1997; Shrub 2025
  • Current proportions: grass 30%; shrub 70%.
  • Current cover: total 32.8%; grass 9.2%; shrub 23.2%.
  • Year-over-year: grass 0.1%; cover 1.9%; pGrass -0.02.
  • Current DTW (ft BGS): 14.1; baseline avg (1984-86): 20.5.
  • Significance counters (years below baseline): Cover 0; Grass 28

3.12 5 — Parcel BLK075

Notes (standardized)

  • Type C parcel (W; Thibaut-Sawmill). Cover Δ 2.3%; Grass Δ -23.4%; Shrub Δ 14.5%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 2018; Shrub 2025
  • Current proportions: grass 30%; shrub 40%.
  • Current cover: total 41.1%; grass 12.4%; shrub 17.3%.
  • Year-over-year: grass 4.3%; cover 7.9%; pGrass +0.
  • Current DTW (ft BGS): 1.8; baseline avg (1984-86): 4.5.
  • Significance counters (years below baseline): Cover 0; Grass 7

3.13 5 — Parcel IND026

Notes (standardized)

  • Type C parcel (W; Thibaut-Sawmill). Cover Δ -14.8%; Grass Δ -47%; Shrub Δ 31.9%.
  • Below baseline (current year): Cover, Grass
  • Last at/above baseline: Cover 2004; Grass 2004; Shrub 2025
  • Current proportions: grass 10%; shrub 90%.
  • Current cover: total 34.2%; grass 2%; shrub 31.9%.
  • Year-over-year: grass -1.1%; cover 4.9%; pGrass -0.02.
  • Current DTW (ft BGS): 10; baseline avg (1984-86): 5.
  • Significance counters (years below baseline): Cover 21; Grass 21

3.14 5 — Parcel IND029

Notes (standardized)

  • Type C parcel (W; Thibaut-Sawmill). Cover Δ 15%; Grass Δ -12.5%; Shrub Δ 26%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 2000; Shrub 2025
  • Current proportions: grass 0%; shrub 90%.
  • Current cover: total 37%; grass 1.5%; shrub 34%.
  • Year-over-year: grass 0.6%; cover 12.9%; pGrass +0.
  • Current DTW (ft BGS): 10.9; baseline avg (1984-86): 4.2.
  • Significance counters (years below baseline): Cover 0; Grass 25

3.15 6 — Parcel IND021

Notes (standardized)

  • Type C parcel (W; Independence-Oak). Cover Δ -24.2%; Grass Δ -15.9%; Shrub Δ -12.3%.
  • Below baseline (current year): Cover, Grass, Shrub
  • Last at/above baseline: Cover 2011; Grass 2013; Shrub 2019
  • Current proportions: grass 30%; shrub 60%.
  • Current cover: total 43.8%; grass 12.1%; shrub 26.7%.
  • Year-over-year: grass -4.4%; cover -7.6%; pGrass +0.
  • Current DTW (ft BGS): 4.7; baseline avg (1984-86): 3.4.
  • Significance counters (years below baseline): Cover 14; Grass 12

3.16 7 — Parcel IND139

Notes (standardized)

  • Type C parcel (W; Symmes-Shepherd). Cover Δ -6.5%; Grass Δ -8.1%; Shrub Δ 1.4%.
  • Below baseline (current year): Grass
  • Last at/above baseline: Grass 1990; Shrub 2025
  • Current proportions: grass 20%; shrub 80%.
  • Current cover: total 42%; grass 9.9%; shrub 31.9%.
  • Year-over-year: grass 2%; cover 0.9%; pGrass +0.03.
  • Current DTW (ft BGS): 11.9; baseline avg (1984-86): 8.
  • Significance counters (years below baseline): Cover 0; Grass 35

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