Synoptic Monitoring Event on September 28, 2025
for Cayuga Lake under Base Flow conditions
Notes: CLMSC-2 Shallow & CLMSC-3 Shallow - Not collected
Cayuga Lake 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 |
|---|---|---|---|---|---|
|
Cayuga Lake North of Myers Point (H) (CLMSC-2 Deep) |
Total Phosphorus (as P) | 9.78 | ug/L | SRP > TP within acceptance criteria | Lab |
| Temperature | 13.0 | C | Field | ||
| Specific Conductance | 436.0 | uS/cm | Lab | ||
| Soluble Reactive Phosphorus (as P) | 10.0 | ug/L | Exceeded 15 min. holding time for filtration; SRP > TP within acceptance criteria | Lab | |
| Nitrate-+Nitrite-Nitrogen (as N) | 1.04 | mg/L | Lab | ||
| E. Coli | 3.0 | Colonies/100 ml | non-detect | Lab | |
| Chlorophyll | 0.27 | ug/L | non-detect | Lab | |
| Chloride | 53.0 | mg/L | Lab | ||
|
Ithaca Sewage Outfall (IASTP) |
Total Phosphorus (as P) | 34.9 | ug/L | Lab | |
| Temperature | 21.0 | C | Field | ||
| Specific Conductance | 425.0 | uS/cm | Lab | ||
| Soluble Reactive Phosphorus (as P) | 4.55 | ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Nitrite-Nitrogen (as N) | 0.03 | mg/L | Lab | ||
| Nitrate-+Nitrite-Nitrogen (as N) | 1.19 | mg/L | Lab | ||
| Kjeldahl Nitrogen, Total (as N) | 0.32 | mg/L | Estimate | Lab | |
| E. Coli | 3.0 | Colonies/100 ml | non-detect | Lab | |
| Dissolved Oxygen | 7.6 | mg/L | Not Certifiable | Lab | |
| Chlorophyll | 6.03 | ug/L | Lab | ||
| Chloride | 57.0 | mg/L | Lab | ||
| Ammonia-Nitrogen (as N) | 0.05 | mg/L | non-detect | Lab | |
|
Cayuga Heights Sewage Outfall (CHSTP) |
Total Phosphorus (as P) | 18.5 | ug/L | Lab | |
| Temperature | 21.0 | C | Field | ||
| Specific Conductance | 418.0 | uS/cm | Lab | ||
| Soluble Reactive Phosphorus (as P) | 3.3 | ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Nitrite-Nitrogen (as N) | 0.02 | mg/L | Lab | ||
| Nitrate-+Nitrite-Nitrogen (as N) | 0.89 | mg/L | Lab | ||
| Kjeldahl Nitrogen, Total (as N) | 0.3 | mg/L | Estimate | Lab | |
| E. Coli | 3.0 | Colonies/100 ml | non-detect | Lab | |
| Dissolved Oxygen | 9.9 | mg/L | Not Certifiable | Lab | |
| Chlorophyll | 3.19 | ug/L | Lab | ||
| Chloride | 54.4 | mg/L | Lab | ||
| Ammonia-Nitrogen (as N) | 0.05 | mg/L | non-detect | Lab | |
|
Lake Source Cooling Outfall (LSC) |
Total Phosphorus (as P) | 26.8 | ug/L | Lab | |
| Temperature | 21.0 | C | Field | ||
| Specific Conductance | 416.0 | uS/cm | Lab | ||
| Soluble Reactive Phosphorus (as P) | 4.08 | ug/L | Exceeded 15 min. holding time for filtration | Lab | |
| Nitrate-+Nitrite-Nitrogen (as N) | 0.83 | mg/L | Lab | ||
| E. Coli | 3.0 | Colonies/100 ml | non-detect | Lab | |
| Dissolved Oxygen | 9.6 | mg/L | Not Certifiable | Lab | |
| Chlorophyll | 3.96 | ug/L | Lab | ||
| Chloride | 55.1 | mg/L | Lab | ||
|
Middle of Shallow Southern Shelf (Shelf Control) |
Total Phosphorus (as P) | 17.4 | ug/L | Lab | |
| Temperature | 21.0 | C | Field | ||
| Specific Conductance | 414.0 | uS/cm | Lab | ||
| Soluble Reactive Phosphorus (as P) | 1.0 | ug/L | non-detect; Exceeded 15 min. holding time for filtration | Lab | |
| Nitrite-Nitrogen (as N) | 0.02 | mg/L | Lab | ||
| Nitrate-+Nitrite-Nitrogen (as N) | 0.79 | mg/L | Lab | ||
| Kjeldahl Nitrogen, Total (as N) | 0.15 | mg/L | non-detect | Lab | |
| E. Coli | 3.0 | Colonies/100 ml | non-detect | Lab | |
| Dissolved Oxygen | 9.6 | mg/L | Not Certifiable | Lab | |
| Chlorophyll | 5.75 | ug/L | Lab | ||
| Chloride | 52.4 | mg/L | Lab | ||
| Ammonia-Nitrogen (as N) | 0.05 | mg/L | non-detect | Lab | |
|
Middle of Lake Opposite Mouth of Salmon Creek (H) (CLMSC-3 Deep) |
Total Phosphorus (as P) | 6.66 | ug/L | SRP > TP within acceptance criteria | Lab |
| Temperature | 9.0 | C | Field | ||
| Specific Conductance | 435.0 | uS/cm | Lab | ||
| Soluble Reactive Phosphorus (as P) | 8.61 | ug/L | Exceeded 15 min. holding time for filtration; SRP > TP within acceptance criteria | Lab | |
| Nitrate-+Nitrite-Nitrogen (as N) | 1.1 | mg/L | Lab | ||
| Kjeldahl Nitrogen, Total (as N) | 0.15 | mg/L | non-detect | Lab | |
| E. Coli | 3.0 | Colonies/100 ml | Lab | ||
| Dissolved Oxygen | 12.3 | mg/L | Not Certifiable | Lab | |
| Chlorophyll | 0.27 | ug/L | non-detect | Lab | |
| Chloride | 52.6 | mg/L | Lab | ||
|
Cayuga Lake near Mouth of Salmon Creek (CLMSC-1) |
Total Phosphorus (as P) | 9.93 | ug/L | Lab | |
| Temperature | 21.0 | C | Field | ||
| Specific Conductance | 413.0 | uS/cm | Lab | ||
| Soluble Reactive Phosphorus (as P) | 1.0 | ug/L | non-detect; Exceeded 15 min. holding time for filtration | Lab | |
| Nitrate-+Nitrite-Nitrogen (as N) | 0.71 | mg/L | Lab | ||
| E. Coli | 3.0 | Colonies/100 ml | non-detect | Lab | |
| Dissolved Oxygen | 9.6 | mg/L | Not Certifiable | Lab | |
| Chlorophyll | 4.97 | ug/L | Lab | ||
| Chloride | 53.4 | mg/L | Lab |