Hydrohistorian
CASTLE ROCK CR-15R
Monitored well · 152271 · 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 2018-05-05 (gamma, resistivity, spontaneous_potential). DWR's log page.
Curves digitized from the scan
Hydrohistorian traced the scanned log automatically. 6 curves passed the confidence gate; 64 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 | |
|---|---|---|---|---|---|
| Shallow Resistivity (Ohm-m) | -5–279 | 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 53%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | -5–279 | 36% | 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 37%; ambiguous rows 22% | ||
| Shallow Resistivity (Ohm-m) | 300–829 | 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 69%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 300–829 | 40% | 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 24% | ||
| Shallow Resistivity (Ohm-m) | 850–1342 | 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 64%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 850–1342 | 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%; ambiguous rows 28% | ||
| Shallow Resistivity (Ohm-m) | 198–379 | 80% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 198–379 | 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); ambiguous rows 47% | ||
| Shallow Resistivity (Ohm-m) | 398–600 | 42% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); ambiguous rows 8%; curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 398–600 | 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 60% | ||
| Shallow Resistivity (Ohm-m) | 648–819 | 67% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 648–819 | 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); ambiguous rows 54% | ||
| Shallow Resistivity (Ohm-m) | 848–1039 | 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); curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 848–1039 | 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); ambiguous rows 49% | ||
| Shallow Resistivity (Ohm-m) | 1048–1260 | 62% | not used: solid curve on a Phoenix/Pioneer print: only the gamma is verified (its resistivity scales are log/backup scales the parser does not read, benchmark r < 0.5); curve class not verified by the benchmark: Shallow Resistivity traced as solid | ||
| Shallow Resistivity (Ohm-m) | 1048–1260 | 53% | 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 56% | ||
| Bulk Density (g/cc) | -6–309 | 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 25%; ambiguous rows 31% | ||
| COMPENSATEDDENSITY (pu) | -6–309 | 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 79%; curve name not recognized: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | -6–309 | 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 59%; curve name not recognized: 'CORRECTION' | ||
| Caliper (in) | -6–309 | 36% | 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 43% | ||
| Gamma Ray (GAPI) | -6–309 | 99% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | -6–309 | 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 24%; curve name not recognized: 'LINE TENSION' | ||
| Bulk Density (g/cc) | 350–859 | 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%; ambiguous rows 27% | ||
| COMPENSATEDDENSITY (pu) | 350–859 | 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 92%; curve name not recognized: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | 350–859 | 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 78%; curve name not recognized: 'CORRECTION' | ||
| Caliper (in) | 350–859 | 40% | 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 42% | ||
| Gamma Ray (GAPI) | 350–859 | 99% | not used: ambiguous rows 53% | ||
| LINE TENSION (Ib) | 350–859 | 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); ambiguous rows 18%; curve name not recognized: 'LINE TENSION' | ||
| Bulk Density (g/cc) | 900–1396 | 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%; ambiguous rows 30% | ||
| COMPENSATEDDENSITY (pu) | 900–1396 | 89% | 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: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | 900–1396 | 91% | 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: 'CORRECTION' | ||
| Caliper (in) | 900–1396 | 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 35%; ambiguous rows 36% | ||
| Gamma Ray (GAPI) | 900–1396 | 85% | not used: ambiguous rows 59% | ||
| LINE TENSION (Ib) | 900–1396 | 40% | 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 24%; curve name not recognized: 'LINE TENSION' | ||
| Bulk Density (g/cc) | 198–397 | 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 78% | ||
| COMPENSATEDDENSITY (pu) | 198–397 | 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: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | 198–397 | 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: 'CORRECTION' | ||
| Caliper (in) | 198–397 | 66% | 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 38% | ||
| Gamma Ray (GAPI) | 198–397 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | 198–397 | 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 70%; curve name not recognized: 'LINE TENSION' | ||
| Bulk Density (g/cc) | 400–618 | 44% | 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 76% | ||
| COMPENSATEDDENSITY (pu) | 400–618 | 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: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | 400–618 | 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: 'CORRECTION' | ||
| Caliper (in) | 400–618 | 66% | 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 39% | ||
| Gamma Ray (GAPI) | 400–618 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | 400–618 | 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 68%; curve name not recognized: 'LINE TENSION' | ||
| Bulk Density (g/cc) | 648–838 | 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); ambiguous rows 70% | ||
| COMPENSATEDDENSITY (pu) | 648–838 | 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: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | 648–838 | 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: 'CORRECTION' | ||
| Caliper (in) | 648–838 | 68% | 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 38% | ||
| Gamma Ray (GAPI) | 648–838 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | 648–838 | 55% | 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 58%; curve name not recognized: 'LINE TENSION' | ||
| Bulk Density (g/cc) | 848–1057 | 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 78% | ||
| COMPENSATEDDENSITY (pu) | 848–1057 | 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: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | 848–1057 | 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 name not recognized: 'CORRECTION' | ||
| Caliper (in) | 848–1057 | 70% | 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 38% | ||
| Gamma Ray (GAPI) | 848–1057 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | 848–1057 | 51% | 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 62%; curve name not recognized: 'LINE TENSION' | ||
| Bulk Density (g/cc) | 1098–1277 | 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 67% | ||
| COMPENSATEDDENSITY (pu) | 1098–1277 | 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: 'COMPENSATEDDENSITY' | ||
| CORRECTION (g/cc) | 1098–1277 | 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: 'CORRECTION' | ||
| Caliper (in) | 1098–1277 | 68% | 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 38% | ||
| Gamma Ray (GAPI) | 1098–1277 | 100% | pass | r 0.99 median, error 0.6% of scale, 7% below r 0.8 (n 411) | LAS |
| LINE TENSION (Ib) | 1098–1277 | 50% | 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 58%; curve name not recognized: 'LINE TENSION' | ||
| ft3/ft3 (ft3/ft3) | 100–286 | 20% | not used: coverage 20%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 290–500 | 48% | not used: ambiguous rows 42%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 510–720 | 45% | not used: ambiguous rows 30%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 730–946 | 52% | not used: ambiguous rows 39%; curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 950–1160 | 47% | not used: curve name not recognized: 'ft3/ft3' | ||
| ft3/ft3 (ft3/ft3) | 1170–1329 | 43% | not used: ambiguous rows 58%; curve name not recognized: 'ft3/ft3' |
"Curves like this one" is the benchmark row for this curve's class: curves of the same name traced the same way, scored against DWR's own digital log of the same run. r is correlation (the print's own smoothing allowed for); error is mean absolute error as a share of the track's printed range; "below r 0.8" is the share of passing curves in the class that still disagreed with DWR's log, which this curve's own numbers cannot rule out.
The LAS files and every verdict are in the statewide groundwater release
(/data, table gw_digitized); the MCP server's gw_digitized_curves and
gw_net_sand work from them. How well the tracer does was
measured against DWR's own digital logs.
The well itself
| Total depth | 1336.0 ft |
|---|---|
| Perforated interval | 931.0–1315.0 ft |
| Ground elevation | 6340.0 ft |
| Permit | 81328 |
| Location | 39.35000, -104.86000 |
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.