Hydrohistorian
TOWN OF MONUMENT WELL 12
Monitored well · 155315 · Division 2 · Water District 10
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 (DWR's code: <NA>). DWR's log page.
Formation picks (DWR)
| Aquifer | Top ft | Base ft | Net sand ft |
|---|---|---|---|
| DENVER | 464 | 1092 | |
| DAWSON | 429 |
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 | 464–1092 | 209 | 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. 1 curve passed the confidence gate; 63 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) | -3–1397 | 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 15%; ambiguous rows 38% | ||
| Deep Resistivity (Ohm-m) | -3–1397 | 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 53% | ||
| Deep Resistivity (Ohm-m) | -3–1397 | 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%; ambiguous rows 41% | ||
| Deep Resistivity (Ohm-m) | -3–1397 | 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 44% | ||
| Gamma Ray (GAPI) | -3–1397 | 86% | not used: ambiguous rows 67% | ||
| LTEN (b) | -3–1397 | 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 89%; curve name not recognized: 'LTEN' | ||
| Shallow Resistivity (Ohm-m) | -3–1397 | 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 61%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | -3–1397 | 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 16% | ||
| Spontaneous Potential (mV) | -3–1397 | 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%; ambiguous rows 40%; 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) | ||
| DEEPRESISTIVITY(Ohm-m) (CILD（mmho/m)) | -4–4819 | 70% | not used: ambiguous rows 38%; curve name not recognized: 'DEEPRESISTIVITY(Ohm-m)' | ||
| Deep Resistivity (Ohm-m) | -4–4819 | 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 97%; curve class not verified by the benchmark: Deep Resistivity traced as solid | ||
| Gamma Ray (GAPI) | -4–4819 | 82% | not used: ambiguous rows 69% | ||
| LTEN (b) | -4–4819 | 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%; ambiguous rows 38%; curve name not recognized: 'LTEN' | ||
| RLL3(Ohm-m) (RILD（Ohm-m）) | -4–4819 | 40% | not used: ambiguous rows 49%; curve name not recognized: 'RLL3(Ohm-m)' | ||
| SNDERRM | -4–4819 | 35% | not used: coverage 35%; ambiguous rows 67%; curve name not recognized: 'SNDERRM' | ||
| SPSHIFT | -4–4819 | 52% | not used: ambiguous rows 54%; curve name not recognized: 'SPSHIFT' | ||
| Shallow Resistivity (Ohm-m) | -4–4819 | 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%; ambiguous rows 16% | ||
| Spontaneous Potential (mV) | -4–4819 | 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 42%; 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) | -4–4795 | 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 30%; curve name not recognized: 'BIT SIZE' | ||
| BOTTEMP | -4–4795 | 21% | not used: coverage 22%; ambiguous rows 8%; curve name not recognized: 'BOTTEMP' | ||
| CASETHCK | -4–4795 | 55% | not used: ambiguous rows 38%; curve name not recognized: 'CASETHCK' | ||
| DPOR (pu) | -4–4795 | 81% | 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 96%; curve name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | -4–4795 | 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 44% | ||
| LINE TENSION (Ib) | -4–4795 | 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%; ambiguous rows 30%; scale OCR confidence 0.65; curve name not recognized: 'LINE TENSION' | ||
| MATRXDEN (Limestone No) | -4–4795 | 73% | not used: ambiguous rows 47%; curve name not recognized: 'MATRXDEN' | ||
| RHOC (g/cc) | -4–4795 | 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 83%; curve name not recognized: 'RHOC' | ||
| SNDERRM | -4–4795 | 35% | not used: coverage 35%; ambiguous rows 51%; curve name not recognized: 'SNDERRM' | ||
| dcal (in) | -4–4795 | 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 41%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | -3–169 | 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%; curve name not recognized: 'BIT SIZE' | ||
| CNPOR (pu) | -3–169 | 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 96%; curve name not recognized: 'CNPOR' | ||
| DPOR (pu) | -3–169 | 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: 'DPOR' | ||
| Gamma Ray (GAPI) | -3–169 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | -3–169 | 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 5%; curve name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | -3–169 | 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 54%; curve name not recognized: 'RHOC' | ||
| dcal (in) | -3–169 | 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%; ambiguous rows 18%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 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 2%; curve name not recognized: 'BIT SIZE' | ||
| CNPOR (pu) | 200–719 | 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 name not recognized: 'CNPOR' | ||
| DPOR (pu) | 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 2%; curve name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 200–719 | 98% | not used: ambiguous rows 61% | ||
| LINE TENSION (Ib) | 200–719 | 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: 'LINE TENSION' | ||
| RHOC (g/cc) | 200–719 | 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 53%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 200–719 | 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 15%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 750–1270 | 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 26%; curve name not recognized: 'BIT SIZE' | ||
| CNPOR (pu) | 750–1270 | 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 95%; curve name not recognized: 'CNPOR' | ||
| DPOR (pu) | 750–1270 | 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 41%; curve name not recognized: 'DPOR' | ||
| Gamma Ray (GAPI) | 750–1270 | 79% | not used: ambiguous rows 67% | ||
| LINE TENSION (Ib) | 750–1270 | 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 22%; curve name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | 750–1270 | 71% | 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 74%; curve name not recognized: 'RHOC' | ||
| dcal (in) | 750–1270 | 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 12%; ambiguous rows 14%; curve name not recognized: 'dcal' | ||
| BIT SIZE (in) | 2–201 | 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 27%; curve name not recognized: 'BIT SIZE' | ||
| LINE TENSION (Ib) | 2–201 | 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 name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | 2–201 | 33% | not used: coverage 34%; ambiguous rows 13%; curve name not recognized: 'RHOC' | ||
| BIT SIZE (in) | 248–421 | 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 51%; curve name not recognized: 'BIT SIZE' | ||
| LINE TENSION (Ib) | 248–421 | 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 name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | 248–421 | 16% | not used: coverage 16%; curve name not recognized: 'RHOC' | ||
| BIT SIZE (in) | 448–641 | 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: 'BIT SIZE' | ||
| LINE TENSION (Ib) | 448–641 | 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 name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | 448–641 | 29% | not used: coverage 30%; curve name not recognized: 'RHOC' | ||
| BIT SIZE (in) | 648–861 | 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 51%; curve name not recognized: 'BIT SIZE' | ||
| LINE TENSION (Ib) | 648–861 | 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 name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | 648–861 | 19% | not used: coverage 19%; curve name not recognized: 'RHOC' | ||
| BIT SIZE (in) | 898–1081 | 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 45%; curve name not recognized: 'BIT SIZE' | ||
| LINE TENSION (Ib) | 898–1081 | 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 name not recognized: 'LINE TENSION' | ||
| RHOC (g/cc) | 898–1081 | 25% | not used: coverage 25%; curve name not recognized: 'RHOC' |
"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 | 1090.0 ft |
|---|---|
| Ground elevation | 6947.0 ft |
| Permit | 329153 |
| Location | 39.09000, -104.87000 |
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.