Hydrohistorian
CENTENNIAL WATER A-2R
Monitored well · 152902 · 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 2019-06-22 (gamma, resistivity, spontaneous_potential). DWR's log page.
Formation picks (DWR)
| Aquifer | Top ft | Base ft | Net sand ft |
|---|---|---|---|
| DENVER | 130 | 960 | |
| ARAPAHOE | 1000 | 1590 | |
| LOWER DAWSON | 75 |
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 | 130–960 | 411 | 0.50 | ||
| ARAPAHOE | 1000–1590 | 194 | 0.33 |
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. 11 curves passed the confidence gate; 99 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) | -4–1911 | 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%; ambiguous rows 43% | ||
| Gamma Ray (GAPI) | -4–1911 | 91% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| Shallow Resistivity (Ohm-m) | -4–1911 | 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 84%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | -4–1911 | 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 56% | ||
| Spontaneous Potential (mV) | -4–1911 | 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%; ambiguous rows 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) | ||
| BIT SIZE (in) | -5–6659 | 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%; ambiguous rows 53%; curve name not recognized: 'BIT SIZE' | ||
| DPOR (pu) | -5–6659 | 86% | 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: 'DPOR' | ||
| Gamma Ray (GAPI) | -5–6659 | 86% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | -5–6659 | 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 44%; curve name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | -5–6659 | 84% | 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 name not recognized: 'RHOC' | ||
| dcal (in) | -5–6659 | 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%; ambiguous rows 43%; curve name not recognized: 'dcal' | ||
| Conductivity (mmho/m) | -10–269 | 34% | 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%; ambiguous rows 11% | ||
| Deep Resistivity (Ohm-m) | -10–269 | 35% | 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 36%; ambiguous rows 16% | ||
| Shallow Resistivity (Ohm-m) | -10–269 | 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 72%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Conductivity (mmho/m) | 300–819 | 46% | 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) | ||
| Deep Resistivity (Ohm-m) | 300–819 | 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); ambiguous rows 7% | ||
| Shallow Resistivity (Ohm-m) | 300–819 | 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 | ||
| Conductivity (mmho/m) | 850–1369 | 38% | 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 9% | ||
| Deep Resistivity (Ohm-m) | 850–1369 | 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% | ||
| Shallow Resistivity (Ohm-m) | 850–1369 | 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 89%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Conductivity (mmho/m) | 1400–1922 | 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%; ambiguous rows 8% | ||
| Deep Resistivity (Ohm-m) | 1400–1922 | 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%; ambiguous rows 9% | ||
| Shallow Resistivity (Ohm-m) | 1400–1922 | 73% | 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 83%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Conductivity (mmho/m) | 48–251 | 38% | 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 39%; ambiguous rows 7% | ||
| Deep Resistivity (Ohm-m) | 48–251 | 43% | 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); ambiguous rows 10% | ||
| Shallow Resistivity (Ohm-m) | 48–251 | 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 70%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Conductivity (mmho/m) | 298–471 | 54% | 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) | ||
| Deep Resistivity (Ohm-m) | 298–471 | 52% | 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); ambiguous rows 10% | ||
| Shallow Resistivity (Ohm-m) | 298–471 | 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 | ||
| Conductivity (mmho/m) | 498–691 | 56% | 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) | ||
| Deep Resistivity (Ohm-m) | 498–691 | 46% | 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) | ||
| Shallow Resistivity (Ohm-m) | 498–691 | 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 | ||
| Conductivity (mmho/m) | 698–911 | 59% | 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) | ||
| Deep Resistivity (Ohm-m) | 698–911 | 49% | 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) | ||
| Shallow Resistivity (Ohm-m) | 698–911 | 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 92%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Conductivity (mmho/m) | 948–1131 | 52% | 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) | ||
| Deep Resistivity (Ohm-m) | 948–1131 | 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% | ||
| Shallow Resistivity (Ohm-m) | 948–1131 | 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 94%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Conductivity (mmho/m) | 1148–1351 | 48% | 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) | ||
| Deep Resistivity (Ohm-m) | 1148–1351 | 38% | 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% | ||
| Shallow Resistivity (Ohm-m) | 1148–1351 | 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: Shallow Resistivity traced as solid | ||
| Conductivity (mmho/m) | 1398–1571 | 54% | 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) | ||
| Deep Resistivity (Ohm-m) | 1398–1571 | 34% | 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 35% | ||
| Shallow Resistivity (Ohm-m) | 1398–1571 | 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 89%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| BIT SIZE (in) | -5–259 | 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 15%; curve name not recognized: 'BIT SIZE' | ||
| DPOR (pu) | -5–259 | 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 95%; curve name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | -5–259 | 99% | not used: ambiguous rows 61% | ||
| LINETENSION (Ib) | -5–259 | 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%; ambiguous rows 6%; curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | -5–259 | 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 60%; curve name not recognized: 'RHOC' | ||
| dcal (in) | -5–259 | 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%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 300–809 | 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: 'BIT SIZE' | ||
| DPOR (pu) | 300–809 | 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 name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 300–809 | 98% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 300–809 | 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%; curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 300–809 | 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 50%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 300–809 | 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%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 850–1359 | 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: 'BIT SIZE' | ||
| DPOR (pu) | 850–1359 | 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 94%; curve name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 850–1359 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 850–1359 | 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 27%; curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 850–1359 | 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 66%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 850–1359 | 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 18%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 1400–1911 | 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%; ambiguous rows 55%; curve name not recognized: 'BIT SIZE' | ||
| DPOR (pu) | 1400–1911 | 70% | 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 name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 1400–1911 | 75% | not used: ambiguous rows 67% | ||
| LINETENSION (Ib) | 1400–1911 | 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%; ambiguous rows 12%; curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 1400–1911 | 70% | 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 name not recognized: 'RHOC' | ||
| dcal (in) | 1400–1911 | 14% | 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 14%; ambiguous rows 13%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 48–237 | 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 6%; curve name not recognized: 'BIT SIZE' | ||
| DPOR (pu) | 48–237 | 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 name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 48–237 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 48–237 | 42% | 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); curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 48–237 | 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 44%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 48–237 | 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%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 248–457 | 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%; curve name not recognized: 'BIT SIZE' | ||
| DPOR (pu) | 248–457 | 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: 'DPOR' | ||
| Gamma Ray (GAPI) | 248–457 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 248–457 | 46% | 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); curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 248–457 | 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 24%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 248–457 | 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%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 498–677 | 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: 'BIT SIZE' | ||
| DPOR (pu) | 498–677 | 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 68%; curve name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 498–677 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 498–677 | 54% | 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); curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 498–677 | 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 36%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 498–677 | 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%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 698–897 | 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: 'BIT SIZE' | ||
| DPOR (pu) | 698–897 | 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 name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 698–897 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 698–897 | 46% | 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); curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 698–897 | 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 34%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 698–897 | 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%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 900–1117 | 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: 'BIT SIZE' | ||
| DPOR (pu) | 900–1117 | 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: 'DPOR' | ||
| Gamma Ray (GAPI) | 900–1117 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 900–1117 | 49% | 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); curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 900–1117 | 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 name not recognized: 'RHOC' | ||
| dcal (in) | 900–1117 | 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%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 1148–1337 | 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: 'BIT SIZE' | ||
| DPOR (pu) | 1148–1337 | 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 name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 1148–1337 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 1148–1337 | 59% | 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); curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 1148–1337 | 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 55%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 1148–1337 | 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 30%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 1348–1557 | 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: 'BIT SIZE' | ||
| DPOR (pu) | 1348–1557 | 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 name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 1348–1557 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINETENSION (Ib) | 1348–1557 | 59% | 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); curve name not recognized: 'LINETENSION' | ||
| RHOC (g/cc) | 1348–1557 | 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 73%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 1348–1557 | 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 30%; curve name not recognized: 'dcal' |
"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 | 1635.0 ft |
|---|---|
| Perforated interval | 1060.0–1140.0 ft |
| Ground elevation | 6010.0 ft |
| Permit | 27175 |
| Location | 39.53000, -104.97000 |
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.