Sheldrake Creek Synoptic Monitoring Event on June 21, 2023, under Base Flow conditions
Sheldrake Creek Monitoring Event Graph
This bar graph reports the raw data for each location that was sampled as part of the monitoring event conducted on this date. To view results for individual water quality indicators, click-off other indicators in the legend at the bottom of the graph.
Event Results
Scroll down to view the event results for each monitoring location.
| Location | Analyte | Value | Remarks | Location |
|---|---|---|---|---|
| Sheldrake Creek Mouth | Dissolved Oxygen | 8.7 mg/L | Not Certifiable | Lab |
| Temperature | 17.0 C | Field | ||
| Hydrogen Ion (pH) | 8.25 Unitless (negative logarithm of H ion concentration) | Not Certifiable; Field blank failed, results may be biased low | Lab | |
| Solids, Total Suspended | 0.63 mg/L | non-detect | Lab | |
| Chloride | 31.2 mg/L | Lab | ||
| Specific Conductance | 562.0 uS/cm | Field blank failed, results may be biased high | Lab | |
| Soluble Reactive Phosphorus (as P) | 7.52 ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Alkalinity | 191.0 mg CaCO3/L | Sample collected with head space | Lab | |
| Turbidity | 0.2 NTU | Field blank failed, results may be biased high | Lab | |
| Nitrate-+Nitrite-Nitrogen (as N) | 6.61 mg/L | Lab | ||
| Kjeldahl Nitrogen, Total (as N) | 0.17 mg/L | non-detect; Result may be biased low when Nitrate+Nitrite Nitrogen (as N) > 4 mg/L | Lab | |
| Hardness, Total | 261.0 mg CaCO3/L | Lab | ||
| Total Phosphorus (as P) | 14.8 ug/L | Field blank failed, results may be biased high | Lab | |
| E. Coli | 40.0 Colonies/100 ml | Field duplicate exceeds criteria based on RPD, but absolute concentration difference is relatively small considering the number of colonies cultured | Lab | |
| Sheldrake Creek at Hall Rd. | Hydrogen Ion (pH) | 8.5 Unitless (negative logarithm of H ion concentration) | Not Certifiable; Field blank failed, results may be biased low | Lab |
| Chloride | 31.2 mg/L | Lab | ||
| Specific Conductance | 550.0 uS/cm | Field blank failed, results may be biased high | Lab | |
| Solids, Total Suspended | 1.67 mg/L | Lab | ||
| Nitrate-+Nitrite-Nitrogen (as N) | 5.84 mg/L | Lab | ||
| Total Phosphorus (as P) | 31.0 ug/L | Field blank failed, results may be biased high | Lab | |
| Hardness, Total | 266.0 mg CaCO3/L | Lab | ||
| Temperature | 19.0 C | Field | ||
| Dissolved Oxygen | 9.8 mg/L | Not Certifiable | Lab | |
| Soluble Reactive Phosphorus (as P) | 20.5 ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Alkalinity | 194.0 mg CaCO3/L | Sample collected with head space | Lab | |
| Turbidity | 1.4 NTU | Field blank failed, results may be biased high | Lab | |
| E. Coli | 100.0 Colonies/100 ml | Field duplicate exceeds criteria based on RPD, but absolute concentration difference is relatively small considering the number of colonies cultured | Lab | |
| Sheldrake Creek at 96a | Temperature | 17.0 C | Field | |
| Hardness, Total | 234.0 mg CaCO3/L | Lab | ||
| Turbidity | 1.8 NTU | Field blank failed, results may be biased high | Lab | |
| Specific Conductance | 463.0 uS/cm | Field blank failed, results may be biased high | Lab | |
| Alkalinity | 198.0 mg CaCO3/L | Sample collected with head space | Lab | |
| Dissolved Oxygen | 9.0 mg/L | Not Certifiable | Lab | |
| Soluble Reactive Phosphorus (as P) | 6.73 ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Nitrate-+Nitrite-Nitrogen (as N) | 1.46 mg/L | Lab | ||
| Total Phosphorus (as P) | 14.6 ug/L | Field blank failed, results may be biased high | Lab | |
| Chloride | 20.4 mg/L | Lab | ||
| Solids, Total Suspended | 2.25 mg/L | Lab | ||
| E. Coli | 345.0 Colonies/100 ml | Field duplicate exceeds criteria based on RPD, but absolute concentration difference is relatively small considering the number of colonies cultured | Lab | |
| Hydrogen Ion (pH) | 8.25 Unitless (negative logarithm of H ion concentration) | Not Certifiable; Field blank failed, results may be biased low | Lab | |
| Sheldrake Creek at Lodi Covert Townline Rd. | E. Coli | 500.0 Colonies/100 ml | Field duplicate exceeds criteria based on RPD, but absolute concentration difference is relatively small considering the number of colonies cultured | Lab |
| Chloride | 20.2 mg/L | Lab | ||
| Specific Conductance | 446.0 uS/cm | Field blank failed, results may be biased high | Lab | |
| Solids, Total Suspended | 5.0 mg/L | Lab | ||
| Turbidity | 2.3 NTU | Field blank failed, results may be biased high | Lab | |
| Alkalinity | 179.0 mg CaCO3/L | Sample collected with head space | Lab | |
| Hardness, Total | 223.0 mg CaCO3/L | Lab | ||
| Temperature | 17.0 C | Field | ||
| Dissolved Oxygen | 8.3 mg/L | Not Certifiable | Lab | |
| Soluble Reactive Phosphorus (as P) | 2.98 ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Nitrate-+Nitrite-Nitrogen (as N) | 2.3 mg/L | Lab | ||
| Total Phosphorus (as P) | 22.0 ug/L | Field blank failed, results may be biased high | Lab | |
| Hydrogen Ion (pH) | 8.0 Unitless (negative logarithm of H ion concentration) | Not Certifiable; Field blank failed, results may be biased low | Lab |