Synoptic Monitoring Event on June 21, 2023
for Sheldrake Creek under Base Flow conditions
Notes: Event Time = Time of sampling (Eastern Time) at stream mouth (Sheldrake Creek Mouth)
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 | Units | Remarks | Location |
|---|---|---|---|---|---|
|
Sheldrake Creek at 96a (SHC96a) |
Turbidity | 1.8 | NTU | Field blank failed for turbidity (FB=0.45 NTU). Turbidity results may be biased high. Criterion is <0.1 NTU. | Lab |
| Total Phosphorus (as P) | 14.6 | ug/L | Field blank failed marginally for total phosphorus. TP result for the field blank was estimated to be 1.5 ug/L and is not considered to significantly bias results. | Lab | |
| Temperature | 17.0 | C | Field | ||
| Specific Conductance | 463.0 | uS/cm | Field blank failed for conductivity (FB=2.4 uS/cm). Conductivity results may be biased high. Criterion is <1.0 uS/cm. | Lab | |
| Soluble Reactive Phosphorus (as P) | 6.73 | ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Solids, Total Suspended | 2.25 | mg/L | Lab | ||
| Nitrate-+Nitrite-Nitrogen (as N) | 1.46 | mg/L | Lab | ||
| Hydrogen Ion (pH) | 8.25 | Unitless (negative logarithm of H ion concentration) | Not Certifiable; Field blank failed marginally for pH (FB pH=5.5). pH results may be biased low. Criterion is 5.75-7.0 ph units. | Lab | |
| Hardness, Total | 234.0 | mg CaCO3/L | Lab | ||
| E. Coli | 345.0 | Colonies/100 ml | High RPD between primary sample and field duplicate E. coli. Absolute difference for raw colony count on each culture plate was small (<10 raw colonies). | Lab | |
| Dissolved Oxygen | 9.0 | mg/L | Not Certifiable | Lab | |
| Chloride | 20.4 | mg/L | Lab | ||
| Alkalinity | 198.0 | mg CaCO3/L | Sample collected with head space | Lab | |
|
Sheldrake Creek at Hall Rd. (SHCHP) |
Turbidity | 1.4 | NTU | Field blank failed for turbidity (FB=0.45 NTU). Turbidity results may be biased high. Criterion is <0.1 NTU. | Lab |
| Total Phosphorus (as P) | 31.0 | ug/L | Field blank failed marginally for total phosphorus. TP result for the field blank was estimated to be 1.5 ug/L and is not considered to significantly bias results. | Lab | |
| Temperature | 19.0 | C | Field | ||
| Specific Conductance | 550.0 | uS/cm | Field blank failed for conductivity (FB=2.4 uS/cm). Conductivity results may be biased high. Criterion is <1.0 uS/cm. | Lab | |
| Soluble Reactive Phosphorus (as P) | 20.5 | ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Solids, Total Suspended | 1.67 | mg/L | Lab | ||
| Nitrate-+Nitrite-Nitrogen (as N) | 5.84 | mg/L | Lab | ||
| Hydrogen Ion (pH) | 8.5 | Unitless (negative logarithm of H ion concentration) | Not Certifiable; Field blank failed marginally for pH (FB pH=5.5). pH results may be biased low. Criterion is 5.75-7.0 ph units. | Lab | |
| Hardness, Total | 266.0 | mg CaCO3/L | Lab | ||
| E. Coli | 100.0 | Colonies/100 ml | High RPD between primary sample and field duplicate E. coli. Absolute difference for raw colony count on each culture plate was small (<10 raw colonies). | Lab | |
| Dissolved Oxygen | 9.8 | mg/L | Not Certifiable | Lab | |
| Chloride | 31.2 | mg/L | Lab | ||
| Alkalinity | 194.0 | mg CaCO3/L | Sample collected with head space | Lab | |
|
Sheldrake Creek at Lodi Covert Townline Rd. (SHCLC) |
Turbidity | 2.3 | NTU | Field blank failed for turbidity (FB=0.45 NTU). Turbidity results may be biased high. Criterion is <0.1 NTU. | Lab |
| Total Phosphorus (as P) | 22.0 | ug/L | Field blank failed marginally for total phosphorus. TP result for the field blank was estimated to be 1.5 ug/L and is not considered to significantly bias results. | Lab | |
| Temperature | 17.0 | C | Field | ||
| Specific Conductance | 446.0 | uS/cm | Field blank failed for conductivity (FB=2.4 uS/cm). Conductivity results may be biased high. Criterion is <1.0 uS/cm. | Lab | |
| Soluble Reactive Phosphorus (as P) | 2.98 | ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Solids, Total Suspended | 5.0 | mg/L | Lab | ||
| Nitrate-+Nitrite-Nitrogen (as N) | 2.3 | mg/L | Lab | ||
| Hydrogen Ion (pH) | 8.0 | Unitless (negative logarithm of H ion concentration) | Not Certifiable;Field blank failed marginally for pH (FB pH=5.5). pH results may be biased low. Criterion is 5.75-7.0 ph units. | Lab | |
| Hardness, Total | 223.0 | mg CaCO3/L | Lab | ||
| E. Coli | 500.0 | Colonies/100 ml | High RPD between primary sample and field duplicate E. coli. Absolute difference for raw colony count on each culture plate was small (<10 raw colonies). | Lab | |
| Dissolved Oxygen | 8.3 | mg/L | Not Certifiable | Lab | |
| Chloride | 20.2 | mg/L | Lab | ||
| Alkalinity | 179.0 | mg CaCO3/L | Sample collected with head space | Lab | |
|
Sheldrake Creek Mouth (SHCM) |
Turbidity | 0.2 | NTU | Field blank failed for turbidity (FB=0.45 NTU). Turbidity results may be biased high. Criterion is <0.1 NTU. | Lab |
| Total Phosphorus (as P) | 14.8 | ug/L | Field blank failed marginally for total phosphorus. TP result for the field blank was estimated to be 1.5 ug/L and is not considered to significantly bias results. | Lab | |
| Temperature | 17.0 | C | Field | ||
| Specific Conductance | 562.0 | uS/cm | Field blank failed for conductivity (FB=2.4 uS/cm). Conductivity results may be biased high. Criterion is <1.0 uS/cm. | Lab | |
| Soluble Reactive Phosphorus (as P) | 7.52 | ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Solids, Total Suspended | 0.63 | mg/L | non-detect | 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 | |
| Hydrogen Ion (pH) | 8.25 | Unitless (negative logarithm of H ion concentration) | Not Certifiable; Field blank failed marginally for pH (FB pH=5.5). pH results may be biased low. Criterion is 5.75-7.0 ph units. | Lab | |
| Hardness, Total | 261.0 | mg CaCO3/L | Lab | ||
| E. Coli | 40.0 | Colonies/100 ml | High RPD between primary sample and field duplicate E. coli. Absolute difference for raw colony count on each culture plate was small (<10 raw colonies). | Lab | |
| Dissolved Oxygen | 8.7 | mg/L | Not Certifiable | Lab | |
| Chloride | 31.2 | mg/L | Lab | ||
| Alkalinity | 191.0 | mg CaCO3/L | Sample collected with head space | Lab |