Hydrohistorian
CASTLE ROCK CR-226
Monitored well · 151047 · Division 1 · Water District 8
Its well permit here · Well permit at DWR ↗
Source DWR administrative record · verify at DWR well record ↗ Source DWR administrative record · verify at DWR permit record ↗
Unclassified
No aquifer or designated-basin assignment — administrative world unknown, kept out of recharge math.
Water-level record
No water-level measurements are cached for this well. It is in the well inventory — permit, construction and aquifer below — but nobody has logged a level we hold.
Geophysical log
DWR holds a geophysical log for this well, run 2017-04-16 (gamma, resistivity). DWR's log page.
Formation picks (DWR)
| Aquifer | Top ft | Base ft | Net sand ft |
|---|---|---|---|
| LOWER DAWSON | 658 | 1107 | |
| DENVER | 1116 | 1723 | |
| ARAPAHOE | 1754 | ||
| UPPER DAWSON | 593 |
Net sand is DWR's own reading of the log (its gLogThickness), not the gross interval.
Net sand per aquifer, from the gamma curve
Computed here from DWR's own digital log (LAS): linear gamma index, clean/shale lines at p10/p90 of the gamma over the interval, sand where Vsh < 0.4, beds under 1.0 ft merged. DWR’s own pick is beside it, never averaged with it.
| Aquifer | Interval ft | Net sand ft | Net / gross | DWR net sand ft | Difference ft |
|---|---|---|---|---|---|
| LOWER DAWSON | 658–1107 | 255 | 0.57 | ||
| DENVER | 1116–1723 | 260 | 0.43 |
A gamma cutoff is a convention, not a measurement. Against DWR’s own picks on 50 wells this one correlates at r 0.86 with a median error near 30% and no bias (how it was scored).
Curves digitized from the scan
Hydrohistorian traced the scanned log automatically. 16 curves passed the confidence gate; 106 did not and are listed with the reason. Screening data: the scan stays the record.
| Curve | Interval ft | Coverage | Verdict | Curves like this one scored | |
|---|---|---|---|---|---|
| Deep Resistivity (Ohm-m) | -5–2564 | 95% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 9%; curve class not verified by the benchmark: Deep Resistivity traced as solid | ||
| Gamma Ray (GAPI) | -5–2564 | 96% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Medium Resistivity (Ohm-m) | -5–2564 | 2% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 2%; ambiguous rows 10% | ||
| Shallow Resistivity (Ohm-m) | -5–2564 | 72% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 47%; scale OCR confidence 0.75; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | -5–2564 | 0% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 0%; ambiguous rows 14% | ||
| Shallow Resistivity (Ohm-m) | -5–2564 | 4% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 4%; ambiguous rows 11% | ||
| Spontaneous Potential (mV) | -5–2564 | 18% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 19%; SP: the printed scale is a span with an unknown offset, and the benchmark could not verify the shape (median r 0.28 after offset removal) | ||
| Conductivity (mmho/m) | 50–229 | 99% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 79%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 50–229 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 50–229 | 99% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 40%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 50–229 | 4% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 5% | ||
| Conductivity (mmho/m) | 250–779 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 77%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 250–779 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 250–779 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 18%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 250–779 | 4% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 5% | ||
| Conductivity (mmho/m) | 800–1329 | 99% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 90%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 800–1329 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 800–1329 | 99% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 47%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 800–1329 | 4% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 4% | ||
| Conductivity (mmho/m) | 1350–1879 | 99% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 90%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 1350–1879 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 1350–1879 | 99% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 46%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1350–1879 | 7% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 7% | ||
| Conductivity (mmho/m) | 1900–2417 | 97% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 91%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 1900–2417 | 94% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 1900–2417 | 96% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 62%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1900–2417 | 8% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 8% | ||
| Conductivity (mmho/m) | 148–357 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 148–357 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 148–357 | 79% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 41%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 148–357 | 2% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 2% | ||
| Conductivity (mmho/m) | 398–577 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 398–577 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 398–577 | 78% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 30%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 398–577 | 4% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 4% | ||
| Conductivity (mmho/m) | 598–797 | 99% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 598–797 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 598–797 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 62%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 598–797 | 7% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 8% | ||
| Conductivity (mmho/m) | 800–1017 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 800–1017 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 800–1017 | 72% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 50%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 800–1017 | 3% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 4% | ||
| Conductivity (mmho/m) | 1048–1237 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 1048–1237 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 1048–1237 | 75% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 36%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1048–1237 | 4% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 4% | ||
| Conductivity (mmho/m) | 1248–1457 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 8%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 1248–1457 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 1248–1457 | 85% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 55%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1248–1457 | 5% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 5% | ||
| Conductivity (mmho/m) | 1498–1677 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 6%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 1498–1677 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 1498–1677 | 82% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 46%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1498–1677 | 4% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 5% | ||
| Conductivity (mmho/m) | 1698–1897 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 1698–1897 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 1698–1897 | 79% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 35%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1698–1897 | 5% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 6% | ||
| Conductivity (mmho/m) | 1900–2118 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 17%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 1900–2118 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 1900–2118 | 48% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 27%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1900–2118 | 2% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 3% | ||
| Conductivity (mmho/m) | 2148–2337 | 100% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 15%; curve class not verified by the benchmark: Conductivity traced as solid | ||
| Gamma Ray (GAPI) | 2148–2337 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | 2148–2337 | 32% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); coverage 32%; ambiguous rows 14%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 2148–2337 | 2% | not used: dashed curve on a Phoenix/Pioneer print: not traceable (benchmark median r 0.38 for the shallow resistivity, 0.00 before the dash/dot split); coverage 3% | ||
| ft3/ft3 (ft3/ft3) | 94–159 | 100% | not used: ambiguous rows 83%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 94–159 | 92% | not used: ambiguous rows 8%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 170–379 | 100% | not used: ambiguous rows 87%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 170–379 | 99% | not used: ambiguous rows 8%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 390–599 | 99% | not used: ambiguous rows 75%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 390–599 | 100% | not used: ambiguous rows 12%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 610–819 | 100% | not used: ambiguous rows 90%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 610–819 | 89% | not used: ambiguous rows 13%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 829–1039 | 100% | not used: ambiguous rows 75%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 829–1039 | 97% | not used: ambiguous rows 11%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 1050–1259 | 100% | not used: ambiguous rows 72%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 1050–1259 | 98% | not used: ambiguous rows 12%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 1270–1479 | 99% | not used: ambiguous rows 74%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 1270–1479 | 94% | not used: ambiguous rows 6%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 1490–1700 | 99% | not used: ambiguous rows 75%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 1490–1700 | 99% | not used: ambiguous rows 10%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 1710–1919 | 100% | not used: ambiguous rows 73%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 1710–1919 | 98% | not used: ambiguous rows 9%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 1930–2139 | 99% | not used: ambiguous rows 63%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 1930–2139 | 98% | not used: ambiguous rows 9%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 2150–2359 | 99% | not used: ambiguous rows 49%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 2150–2359 | 97% | not used: ambiguous rows 11%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 2370–2580 | 67% | not used: ambiguous rows 65%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 2370–2580 | 30% | not used: coverage 31%; ambiguous rows 22%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 2060–2129 | 100% | not used: ambiguous rows 60%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 2060–2129 | 99% | not used: ambiguous rows 11%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 2140–2350 | 98% | not used: ambiguous rows 48%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 2140–2350 | 97% | not used: ambiguous rows 11%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 2360–2580 | 67% | not used: ambiguous rows 94%; curve name not recognized: 'ft3/ft3' | ||
| mD (mD) | 2360–2580 | 26% | not used: coverage 26%; ambiguous rows 13%; curve name not recognized: 'mD' | ||
| ft3/ft3 (ft3/ft3) | 90–180 | 80% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 90–180 | 100% | not used: ambiguous rows 99%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 190–400 | 78% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 190–400 | 100% | not used: ambiguous rows 99%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 410–619 | 80% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 410–619 | 100% | not used: ambiguous rows 98%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 630–840 | 85% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 630–840 | 100% | not used: ambiguous rows 97%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 850–1059 | 67% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 850–1059 | 100% | not used: ambiguous rows 99%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1070–1279 | 77% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1070–1279 | 100% | not used: ambiguous rows 98%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1290–1500 | 78% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1290–1500 | 100% | not used: ambiguous rows 99%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1510–1719 | 79% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1510–1719 | 100% | not used: ambiguous rows 99%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1730–1940 | 67% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1730–1940 | 100% | not used: ambiguous rows 100%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1950–2159 | 76% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1950–2159 | 100% | not used: ambiguous rows 100%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 2170–2380 | 66% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 2170–2380 | 100% | not used: ambiguous rows 98%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 2060–2129 | 100% | not used: ambiguous rows 17%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 2140–2350 | 100% | not used: ambiguous rows 8%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 2154–2623 | 8% | not used: coverage 9%; ambiguous rows 67%; curve name not recognized: 'ft3/ft3' |
"Curves like this one" is the benchmark row for this curve's class: curves of the same name traced the same way, scored against DWR's own digital log of the same run. r is correlation (the print's own smoothing allowed for); error is mean absolute error as a share of the track's printed range; "below r 0.8" is the share of passing curves in the class that still disagreed with DWR's log, which this curve's own numbers cannot rule out.
The LAS files and every verdict are in the statewide groundwater release
(/data, table gw_digitized); the MCP server's gw_digitized_curves and
gw_net_sand work from them. How well the tracer does was
measured against DWR's own digital logs.
The well itself
| Total depth | 2400.0 ft |
|---|---|
| Perforated interval | 1207.0–1705.0 ft |
| Ground elevation | 6660.0 ft |
| Permit | 80706 |
| Location | 39.36000, -104.80000 |
What this page is not
Monitoring records are irregular: measurements cluster where somebody chose to look, so a trend describes this well's record, not the aquifer as a whole. Levels are DWR's published measurements, unedited. A trend here is not a prediction, and it is not a determination about anyone's water right.