Hydrohistorian
EC-WEST AR-1
Monitored well · 157466 · Division 1 · Water District 1
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 2023-12-10 (gamma, resistivity, spontaneous_potential). DWR's log page.
Formation picks (DWR)
| Aquifer | Top ft | Base ft | Net sand ft |
|---|---|---|---|
| DENVER | 330 | 1040 | |
| ARAPAHOE | 1105 | 1730 | |
| DAWSON |
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 |
|---|---|---|---|---|---|
| DENVER | 330–1040 | 202 | 0.28 | ||
| ARAPAHOE | 1105–1730 | 311 | 0.50 |
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. 14 curves passed the confidence gate; 104 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 | |
|---|---|---|---|---|---|
| Conductivity (mmho/m) | -2–1787 | 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 38% | ||
| Deep Resistivity(Ohm-m) (Conductivity（mmho/m)) | -2–1787 | 94% | not used: ambiguous rows 56%; scale OCR confidence 0.55; curve name not recognized: 'Deep Resistivity(Ohm-m)' | ||
| Gamma Ray (GAPI) | -2–1787 | 20% | 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 21%; ambiguous rows 53% | ||
| LineTension (Ib) | -2–1787 | 10% | 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 11%; ambiguous rows 65%; curve name not recognized: 'LineTension' | ||
| Medium Resistivity (Ohm-m) | -2–1787 | 13% | 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 13%; ambiguous rows 61% | ||
| Shallow Resistivity (Ohm-m) | -2–1787 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | -2–1787 | 12% | 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 12%; ambiguous rows 80%; scale OCR confidence 0.55; 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) | ||
| Spontaneous Potential (mV) | -2–1787 | 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 65%; 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) | ||
| BITSIZE (in) | 294–2095 | 15% | 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 16%; ambiguous rows 54%; curve name not recognized: 'BITSIZE' | ||
| CASETHCK | 294–2095 | 79% | not used: ambiguous rows 77%; scale OCR confidence 0.76; curve name not recognized: 'CASETHCK' | ||
| CNPOR（pu) (CNPOR（pu)) | 294–2095 | 78% | not used: ambiguous rows 88%; scale OCR confidence 0.55; curve name not recognized: 'CNPOR（pu)' | ||
| Density Porosity (pu) | 294–2095 | 20% | 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 20%; ambiguous rows 31% | ||
| FLUIDDEN | 294–2095 | 58% | not used: ambiguous rows 27%; curve name not recognized: 'FLUIDDEN' | ||
| Ical (in) | 294–2095 | 87% | 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 49%; curve name not recognized: 'Ical' | ||
| LINE TENSION (Ib) | 294–2095 | 10% | 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 11%; ambiguous rows 47%; curve name not recognized: 'LINE TENSION' | ||
| SPSHIFT | 294–2095 | 68% | not used: ambiguous rows 35%; curve name not recognized: 'SPSHIFT' | ||
| Deep Resistivity (Ohm-m) | -2–169 | 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 1% | ||
| Gamma Ray (GAPI) | -2–169 | 98% | not used: ambiguous rows 55% | ||
| Line Tension (Ib) | -2–169 | 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 1%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | -2–169 | 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%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | -2–169 | 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 97%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | -2–169 | 6% | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 200–719 | 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 1%; ambiguous rows 75% | ||
| Gamma Ray (GAPI) | 200–719 | 100% | not used: ambiguous rows 59% | ||
| Line Tension (Ib) | 200–719 | 1% | 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 1%; ambiguous rows 47%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 200–719 | 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 14%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 200–719 | 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 100%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 200–719 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 750–1269 | 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% | ||
| Gamma Ray (GAPI) | 750–1269 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 750–1269 | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 750–1269 | 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 3%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 750–1269 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 750–1269 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 1290–1803 | 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 3%; ambiguous rows 28% | ||
| Gamma Ray (GAPI) | 1290–1803 | 85% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 1290–1803 | 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%; ambiguous rows 46%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 1290–1803 | 6% | 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%; ambiguous rows 32%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 1290–1803 | 90% | 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: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 1290–1803 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 198–379 | 1% | 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 1%; ambiguous rows 20% | ||
| Gamma Ray (GAPI) | 198–379 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 198–379 | 1% | 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 16%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 198–379 | 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 16%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 198–379 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 198–379 | 23% | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 398–600 | 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% | ||
| Gamma Ray (GAPI) | 398–600 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 398–600 | 1% | 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 1%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 398–600 | 10% | 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 10%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 398–600 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 398–600 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 648–819 | 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% | ||
| Gamma Ray (GAPI) | 648–819 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 648–819 | 1% | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 648–819 | 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%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 648–819 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 648–819 | 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 32%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 848–1039 | 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% | ||
| Gamma Ray (GAPI) | 848–1039 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 848–1039 | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 848–1039 | 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%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 848–1039 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 848–1039 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 1048–1259 | 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% | ||
| Gamma Ray (GAPI) | 1048–1259 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 1048–1259 | 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 1%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 1048–1259 | 10% | 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 11%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 1048–1259 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 1048–1259 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 1298–1479 | 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% | ||
| Gamma Ray (GAPI) | 1298–1479 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 1298–1479 | 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 13%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 1298–1479 | 9% | 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 9%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 1298–1479 | 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 98%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 1298–1479 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 1498–1700 | 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% | ||
| Gamma Ray (GAPI) | 1498–1700 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 1498–1700 | 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 3%; ambiguous rows 7%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 1498–1700 | 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%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 1498–1700 | 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 99%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 1498–1700 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 398–587 | 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 1% | ||
| Gamma Ray (GAPI) | 398–587 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 398–587 | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 398–587 | 17% | 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%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 398–587 | 92% | 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 31%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 398–587 | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 598–807 | 1% | 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% | ||
| Gamma Ray (GAPI) | 598–807 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 598–807 | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 598–807 | 11% | 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 11%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 598–807 | 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 56%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 598–807 | 9% | 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 9%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 848–1027 | 1% | 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 1% | ||
| Gamma Ray (GAPI) | 848–1027 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 848–1027 | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 848–1027 | 21% | 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 21%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 848–1027 | 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: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 848–1027 | 12% | 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 12%; ambiguous rows 10%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 1048–1247 | 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% | ||
| Gamma Ray (GAPI) | 1048–1247 | 100% | not used: ambiguous rows 50% | ||
| Line Tension (Ib) | 1048–1247 | 1% | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 1048–1247 | 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%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 1048–1247 | 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 81%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 1048–1247 | 23% | 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%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 1298–1467 | 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% | ||
| Gamma Ray (GAPI) | 1298–1467 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 1298–1467 | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 1298–1467 | 37% | 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 38%; ambiguous rows 6%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 1298–1467 | 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: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 1298–1467 | 10% | 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 11%; scale OCR confidence 0.68; 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) | ||
| Deep Resistivity (Ohm-m) | 1498–1687 | 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% | ||
| Gamma Ray (GAPI) | 1498–1687 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Line Tension (Ib) | 1498–1687 | 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%; curve name not recognized: 'Line Tension' | ||
| Medium Resistivity (Ohm-m) | 1498–1687 | 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%; scale OCR confidence 0.75 | ||
| Shallow Resistivity (Ohm-m) | 1498–1687 | 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 88%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Spontaneous Potential (mV) | 1498–1687 | 12% | 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 13%; ambiguous rows 7%; scale OCR confidence 0.68; 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 depth | 1741.0 ft |
|---|---|
| Ground elevation | 6234.0 ft |
| Permit | 88668 |
| Location | 39.47000, -104.53000 |
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.