← Basin groundwater

STAGE RUN HOA

Monitored well · 152321 · Division 1 · Water District 2

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 2018-07-27 (gamma, resistivity, spontaneous_potential). DWR's log page.

Formation picks (DWR)

AquiferTop ftBase ftNet sand ft
LOWER DAWSON464 550 66
DENVER640 1542 251
ARAPAHOE1575 1955 221
UPPER DAWSON 278 72

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.

AquiferInterval ftNet sand ftNet / grossDWR net sand ftDifference ft
LOWER DAWSON464–550 35 0.41 66 -30
DENVER640–1542 354 0.39 251 +103
ARAPAHOE1575–1955 139 0.37 221 -82

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. 23 curves passed the confidence gate; 64 did not and are listed with the reason. Screening data: the scan stays the record.

CurveInterval ftCoverageVerdict Curves like this one scored
Bulk Density (g/cc) 44–359 98% 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 95%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 44–359 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 57%; curve name not recognized: 'CORRECTION'
Caliper (in) 44–359 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%
Gamma Ray (GAPI) 44–359 99% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 400–909 98% 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 94%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 400–909 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 69%; curve name not recognized: 'CORRECTION'
Caliper (in) 400–909 26% 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 26%; ambiguous rows 6%
Gamma Ray (GAPI) 400–909 98% not used: ambiguous rows 60%
Bulk Density (g/cc) 950–1459 98% 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 98%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 950–1459 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 73%; curve name not recognized: 'CORRECTION'
Caliper (in) 950–1459 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 18%
Gamma Ray (GAPI) 950–1459 98% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 1500–2009 98% 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 95%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 1500–2009 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 51%; curve name not recognized: 'CORRECTION'
Caliper (in) 1500–2009 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%
Gamma Ray (GAPI) 1500–2009 98% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 198–403 100% 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 78%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 198–403 100% 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 46%; curve name not recognized: 'CORRECTION'
Caliper (in) 198–403 25% 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 26%
Gamma Ray (GAPI) 198–403 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 448–623 100% 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 79%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 448–623 100% 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 44%; curve name not recognized: 'CORRECTION'
Caliper (in) 448–623 33% 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 33%
Gamma Ray (GAPI) 448–623 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 648–843 100% 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 84%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 648–843 100% 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 65%; curve name not recognized: 'CORRECTION'
Caliper (in) 648–843 39% 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 40%
Gamma Ray (GAPI) 648–843 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 848–1063 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 87%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 848–1063 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 76%; curve name not recognized: 'CORRECTION'
Caliper (in) 848–1063 41% 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)
Gamma Ray (GAPI) 848–1063 100% not used: ambiguous rows 55%
Bulk Density (g/cc) 1098–1283 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 86%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 1098–1283 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 67%; curve name not recognized: 'CORRECTION'
Caliper (in) 1098–1283 33% 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 34%
Gamma Ray (GAPI) 1098–1283 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 1298–1503 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 79%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 1298–1503 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 43%; curve name not recognized: 'CORRECTION'
Caliper (in) 1298–1503 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 18%
Gamma Ray (GAPI) 1298–1503 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 1548–1723 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 75%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 1548–1723 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 22%; curve name not recognized: 'CORRECTION'
Caliper (in) 1548–1723 28% 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 29%
Gamma Ray (GAPI) 1548–1723 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Bulk Density (g/cc) 1748–1943 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 72%; curve class not verified by the benchmark: Bulk Density traced as solid
CORRECTION (g/cc) 1748–1943 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 22%; curve name not recognized: 'CORRECTION'
Caliper (in) 1748–1943 31% 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 32%
Gamma Ray (GAPI) 1748–1943 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Gamma Ray (GAPI) -6–279 98% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) -6–279 94% 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 53%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) -6–279 24% 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 25%; 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)
Gamma Ray (GAPI) 300–829 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 300–829 100% 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 47%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 300–829 24% 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 24%; 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)
Gamma Ray (GAPI) 850–1379 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 850–1379 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 48%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 850–1379 22% 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 22%; 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)
Gamma Ray (GAPI) 1400–1929 99% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 1400–1929 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 58%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 1400–1929 19% 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)
Gamma Ray (GAPI) 98–303 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 98–303 100% 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 41%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 98–303 30% 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 31%; 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)
Gamma Ray (GAPI) 348–523 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 348–523 100% 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 32%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 348–523 32% 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 33%; 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)
Gamma Ray (GAPI) 548–743 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 548–743 100% 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 42%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 548–743 29% 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 29%; 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)
Gamma Ray (GAPI) 748–963 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 748–963 100% 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 42%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 748–963 22% 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 23%; 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)
Gamma Ray (GAPI) 998–1183 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 998–1183 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 32%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 998–1183 27% 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 27%; 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)
Gamma Ray (GAPI) 1198–1403 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 1198–1403 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 38%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 1198–1403 33% 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 33%; 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)
Gamma Ray (GAPI) 1448–1623 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 1448–1623 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 40%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 1448–1623 31% 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 31%; 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)
Gamma Ray (GAPI) 1648–1843 100% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 1648–1843 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 48%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 1648–1843 16% 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 17%; 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)
Gamma Ray (GAPI) 1848–2049 95% pass r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) LAS
Shallow Resistivity (Ohm-m) 1848–2049 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 33%; curve class not verified by the benchmark: Shallow Resistivity traced as solid
Spontaneous Potential (mV) 1848–2049 27% 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 28%; 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)

"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 depth2040.0 ft
Perforated interval1576.0–1956.0 ft
Ground elevation6205.0 ft
Permit81279
Location39.57000, -104.68000
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.