CSLAP 2014 Lake Water Quality Summary: Lake Bonaparte

Transcription

1 General Lake Information Location County Basin Size Lake Origins Watershed Area Retention Time Mean Depth Sounding Depth Public Access? CSLAP 24 Lake Water Quality Summary: Lake Bonaparte Town of Harrisville Lewis St. Lawrence River 52 hectares (,286 acres) Natural 4,77 hectares (,782 acres).8 years 9.4 meters 22 meters DEC launch Major Tributaries Lake Tributary To Clark Creek, Dobson Creek Bonaparte Creek to Indian River to Black Lake to Oswegatchie River to St. Lawrence River WQ Classification B (contact recreation = swimming) Lake Outlet Latitude Lake Outlet Longitude Sampling Years , 995, 998-2, Samplers Ray Powers and Dick Khan Main Contact Ray Powers Lake Map pg.

2 Background Lake Bonaparte is a,286 acre, class B lake found in the Town of Diana (and resides, in part, within the Fort Drum Military Reservation) in Lewis County, just outside the boundary of central western Adirondacks. It was first sampled as part of CSLAP in 988. It is one of four CSLAP lakes among the more than 8 lakes found in Lewis County and one of 29 CSLAP lakes among the more than 8 lakes and ponds in the St. Lawrence River drainage basin. Lake Uses Lake Bonaparte is a Class B lake; this means that the best intended use for the lake is for contact recreation swimming and bathing, non-contact recreation boating, aquatic life, and aesthetics. The lake is used by lake residents and visitors for swimming, power boating and other recreation via shoreline properties, state boat launch, two pubic marinas, and two restaurants. Lake Bonaparte has been regularly stocked with trout and brown trout; about 8 seven inch trout and 28 eight to nine inch brown trout are stocked in the spring, with the assistance of the (Lewis) County Federated Sportsmen. Fish species identified at the lake include black bullhead, brown trout, lake trout, northern pike, smallmouth bass, walleye, and yellow perch. General statewide fishing regulations are applicable in Lake Bonaparte. In addition, open season for walleye is the st Saturday in May through March 5 th, with a minimum size of 8 inches and a daily limit of three fish. Ice fishing is allowed. There is a year long open season for trout and lake trout, with daily size limits of 9 inches and 2 inches, and daily take limits of five and three fish, respectively. There are no lake-specific fish consumption advisories on Lake Bonaparte. Historical Water Quality Data CSLAP sampling was conducted on Lake Bonaparte from 988 to 992, 995, 998 to 2, and 27 to 23. The CSLAP reports for each of the past several years can be found on the NYSFOLA website at The most recent CSLAP report and scorecard for Lake Bonaparte can also be found on the NYSDEC web page at Lake Bonaparte was sampled by the NYSDEC Division of Water as part of an ambient lake monitoring program in 986 through the state Lake Classification and Inventory (LCI) survey. This monitoring program showed water quality conditions similar to those measured through CSLAP, at least for the water quality parameters measured in these programs. Lake Bonaparte was sampled as part of the pilot NYSDEC biomonitoring program conducted as part of the LCI in 2. This data showed water quality conditions very similar to those measured through CSLAP, confirming the accuracy of the data collected by CSLAP sampling volunteers. The lake was also sampled as part of the Conservation Department (predecessor to the NYSDEC) survey of the Oswegatchie-Black Rivers basin in 93. This study, conducted in mid July, did not report water transparency measurements, but it found moderately high dissolved oxygen reduction in deeper waters of the lake, although samples were not collected below a depth of 47 feet. pg. 2

3 The field surveys conducted as part of the Biological Survey reported the following for Lake Bonaparte: Although Bonaparte Lake is large and deep enough to support a large number of lake trout and whitefish these two species seem to have become almost extinct. This has occurred in spite of the stocking of the former species which has taken place over the last ten years. An unfavorable factor is the almost entire absence of minnows from the lake. Apparently pike perch afford the only fishing which amounts to much, although a small number of bass and northern pike are taken. The introduction of a suitable food fish will be necessary before there can be any hope of a return of good fishing conditions. An experimental planting of the blunt-nose minnow is recommended. A complication arises in the treatment of Lake Bonaparte through the fact that Mud Lake, which is continuous with it and which is in reality a wide-water in its outlet, is the natural spawning and nursery area for pike-perch, perch, northern pike and bullheads. It is closed to fishing by a group of people who own all of the surrounding land. Their right to close the lake was upheld in the circuit court, although a navigable channel from Bonaparte exists through which a freight and passenger boat was operated on a regular schedule some years ago." Plant survey information from this study is provided later in this report. Neither the inlets (Clark Creek, Dobson Creek) nor the outlet (Bonaparte Creek) has been monitored through the NYSDEC Rotating Intensive Basins (RIBS) program or the state stream macroinvertebrate monitoring program. The lake was sampled by DEC fisheries staff in support of fish stocking activities. These data show lower water clarity readings than reported through CSLAP, and dissolved oxygen deficits near the extreme lake bottom. Lake Association and Management History Lake Bonaparte is served by the Lake Bonaparte Conservation Club. The Club is involved in a variety of lake management activities, including: milfoil control projects, using biocontrol measures (weevils) sponsoring boater safety classes maintaining an historic gazebo, walkway and welcome to Lake Bonaparte signs active support of the Town of Diana Historical Museum lake community picnics, auction, tee shirt night, and a welcome back to the lake party a regularly published newsletter The Lake Bonaparte Conservation Club maintains a website at Summary of 24 CSLAP Sampling Results Evaluation of 24 Annual Results Relative to The summer (mid-june through mid-september) average readings are compared to historical averages for all CSLAP sampling seasons in the Lake Condition Summary table, and are compared to individual historical CSLAP sampling seasons in the Long Term Data Plots Lake Bonaparte section in Appendix C. pg. 3

4 Evaluation of Eutrophication Indicators Water clarity readings were close to normal in 24, as expected given algae levels and water color readings that were similar to the long-term average for the lake. Water clarity had decreased over the last decade, but reversed this apparent trend in 24. Phosphorus and (total) nitrogen readings were higher than normal in 24, and the increase in phosphorus levels has been part of a trend since 28. However, algae levels have been consistently low, suggesting that the recent and longer-term increase in phosphorus levels may have been part of normal variability for the lake. No clear seasonal changes have been apparent in any of these trophic indicators in the typical CSLAP sampling season, and no seasonal trends were apparent in 24. Phosphorus readings spiked in early and late September of 24, but it is likely that this was not representative of conditions in the lake at that time (given the lack of response for either algae levels or water clarity). The lake can be characterized as mesoligotrophic, or moderately unproductive, based on water clarity, chlorophyll a (both typical of mesotrophic lakes), and total phosphorus readings (typical of oligotrophic lakes). The trophic state indices (TSI) evaluation suggests that each of these trophic indicators is internally consistent each of these indicators is in the expected range given the readings of the other indicators. Overall trophic conditions are summarized on the Lake Scorecard and Lake Condition Summary Table. Evaluation of Potable Water Indicators Algae levels are not high enough to render the lake susceptible to taste and odor compounds or elevated DBP (disinfection by product) compounds that could affect the potability of the water, but the lake is not used for drinking water. Hypolimnetic phosphorus and ammonia readings are similar to those measured at the lake surface (and both were lower than usual in 24). This suggests that deepwater intakes may be supported for any unofficial potable water use. Potable water conditions, at least as measurable through CSLAP, are summarized in the Lake Scorecard and Lake Condition Summary Table. Evaluation of Limnological Indicators Total nitrogen readings were higher than normal in 24, while ph and calcium were lower than normal. ph readings have decreased significantly since the late 98s, but no ecological impacts have been apparent in response to these lower ph readings. Color readings have been higher since the lab change in 22, but this may represent a lab artefact and not an actual increase in organic matter (as measured by color). NOx readings have decreased since the late 2s, and conductivity readings have decreased since about 2. None of the other indicators has exhibited any clear long-term trends, and it is likely that the small changes in each of these limnological indicators have been within the normal range of variability in the lake. Overall limnological conditions are summarized in the Lake Scorecard and Lake Condition Summary Table. Evaluation of Biological Condition The fluoroprobe screening samples analyzed by SUNY ESF in recent years indicated very low overall algae levels and low blue green algae levels. In 23, somewhat higher blue green algae levels were apparent in the fall open water samples. This was not apparent in 24, when the pg. 4

5 highest (total) algae levels were measured earlier in the summer, and the algal community was comprised of a mix of algae species. No shoreline blooms have been reported or sampled. Extensive macrophyte surveys have been conducted through CSLAP in Lake Bonaparte, although at least three protected plant species (Megalodonta beckii, water marigold; Potamogeton filiformis, thread-leaf pondweed; and Utricularia radiata, little floating bladderwort) and at least two exotic plant species (Myriophyllum spicatum, Eurasian watermilfoil, and Myriophyllum heterophyllum, variable watermilfoil) have been found in the lake. The 2 biomonitoring survey found at least 24 plant species, including Nitellopsis obtusa (starry stonewort), an invasive macroalga. This survey did not find thread-leaf pondweed, little floating bladderwort, or variable watermilfoil. The modified floristic quality index (FQI) for the lake indicates that the quality of the aquatic plant community is excellent. The composition of the fish community includes a mix of coldwater (at least one species), coolwater (at least two species) and warmwater (at least two species) fish species it is assumed that this represents an incomplete inventory. It is likely that the lake supports a two story fishery. Zooplankton surveys have not been conducted through CSLAP at Lake Bonaparte, and the macroinvertebrate analyses from the biomonitoring study have not yet been completed. Biological conditions in the lake are summarized in the Lake Scorecard and Lake Condition Summary Table. Evaluation of Lake Perception Recreational assessments were slightly more favorable than usual in 24, consistent with higher water clarity (compared to recent years). None of these indicators of lake perception has exhibited any clear long-term changes. Recreational and water quality assessments degrade slightly during the typical summer, consistent with seasonal increases in aquatic plant coverage (and despite the lack of seasonal change in measured water quality conditions). There were no clear seasonal changes in lake perception in 24. Overall lake perception is summarized on the Lake Scorecard and Lake Condition Summary Table. Evaluation of Local Climate Change Water temperature readings in the summer index period have varied slightly over the last few years increasing from 28 to 22, but decreasing in the last two years. It is not known if local climate change can be well evaluated through CSLAP. Evaluation of Algal Toxins Algal toxin levels can vary significantly within blooms and from shoreline to lake, and the absence of toxins in a sample does not indicate safe swimming conditions. Phycocyanin readings were below the levels indicating susceptibility for harmful algal blooms (HABs), consistent with fluoroprobe screening results that indicate love levels of blue green algae. Algal toxin levels in the open water were well below the criteria indicating susceptibility for either drinking water or swimming (occasionally elevated readings do not appear to be an accurate representation of local conditions, since blue green algae levels are very low in these samples). No shoreline algae blooms have been reported or sampled in the lake, at least in recent years. pg. 5

6 Lake Condition Summary Category Indicator Min Overall Eutrophication Indicators Potable Water Indicators Limnological Indicators Lake Perception Biological Condition Local Climate Change Harmful Algal Blooms Avg Max 24 Avg Classification 24 Change? Long-term Change? Water Clarity Mesotrophic Within Normal Range No Change Chlorophyll a Mesotrophic Within Normal Range No Change Total Phosphorus Oligotrophic Higher than Normal No Change Hypolimnetic Ammonia Close to Surface NH4 Readings Lower Than Normal Hypolimnetic Arsenic Hypolimnetic Iron Hypolimnetic Manganese Hypolimnetic Phosphorus Close to Surface TP Readings Lower Than Normal Nitrate + Nitrite...5. Low NOx Lower Than Normal No Change Ammonia Low Ammonia Within Normal Range Not yet known Total Nitrogen Low Total Nitrogen Higher than Normal Not yet known ph Alkaline Lower Than Normal Decreasing Significantly Specific Conductance Intermediate Hardness Within Normal Range No Change True Color 62 8 Intermediate Color Within Normal Range Increasing Slightly Calcium Highly Susceptible to Zebra Mussels Lower Than Normal Not yet known WQ Assessment Not Quite Crystal Clear Within Normal Range No Change Aquatic Plant Coverage Surface Plant Growth Within Normal Range No Change Recreational Assessment Excellent More Favorable Than Normal No Change Phytoplankton Open water-low blue green algae biomass Macrophytes Excellent quality of the aquatic plant community Zooplankton Not measured through CSLAP Macroinvertebrates 2 data not yet available Fish Two story fishery? Invasive Species Eurasian watermilfoil, variable watermilfoil, starry stonewort Air Temperature Higher Than Normal No Change Water Temperature Higher Than Normal No Change Open Water Phycocyanin Open Water FP Chl.a Open Water FP BG Chl.a 4 Open Water Microcystis <.3 Open Water Anatoxin a <DL <DL <DL <DL Shoreline Phycocyanin Shoreline FP Chl.a Shoreline FP BG Chl.a Shoreline Microcystis Shoreline Anatoxin a No readings indicate high risk of BGA No readings indicate high algae levels No readings indicate high BGA levels Mostly undetectable open water MC-LR Open water Anatoxin-a consistently not detectable No shoreline blooms sampled for PC No shoreline blooms sampled for FP No shoreline blooms sampled for FP No shoreline bloom MC-LR data No shoreline bloom anatoxin data pg. 6

7 Evaluation of Lake Condition Impacts to Lake Uses Lake Bonaparte is presently among the lakes cited on the 29 St. Lawrence River Basin Priority Waterbody List (PWL), with public bathing, recreation and habitat/hydrology listed as stressed due to excessive weed growth. The PWL listing for Lake Bonaparte is listed in Appendix B. Potable Water (Drinking Water) The CSLAP dataset at Lake Bonaparte, including water chemistry data, physical measurements, and volunteer samplers perception data, is inadequate to evaluate the use of the lake for potable water, and the lake is not used for this purpose. The limited CSLAP data do not show any impacts for unofficial use of the lake for potable water. Contact Recreation (Swimming) The CSLAP dataset at Lake Bonaparte, including water chemistry data, physical measurements, and volunteer samplers perception data, suggests that swimming and contact recreation should be fully supported, although additional information about bacterial levels is needed to evaluate the safety of the water for swimming. Non-Contact Recreation (Boating and Fishing) The CSLAP dataset on Lake Bonaparte, including water chemistry data, physical measurements, and volunteer samplers perception data, suggest that non-contact recreation is supported, although this use may be threatened by the presence of Eurasian watermilfoil and variable watermilfoil. Aquatic Life The CSLAP dataset on Lake Bonaparte, including water chemistry data, physical measurements, and volunteer samplers perception data, suggest that aquatic life may be threatened by the presence of exotic plants, although additional data are needed to evaluate the food and habitat conditions for aquatic organisms in the lake. Aesthetics The CSLAP dataset on Lake Bonaparte, including water chemistry data, physical measurements, and volunteer samplers perception data, suggest that aesthetics should be fully supported. Fish Consumption There are no fish consumption advisories posted for Lake Bonaparte. Additional Comments and Recommendations Lake Bonaparte may be a good candidate for detailed aquatic plant monitoring to evaluate the effectiveness of the herbivorous insect stocking. Lake residents are advised to report and avoid exposure to any shoreline blue green algae blooms, although the lake does not appear to be very susceptible to these blooms. Any sources of nutrients leading to the recent increase in phosphorus should be evaluated, although at least in 24, the typical phosphorus readings were probably close to normal. Aquatic Plant IDs-24 None submitted for identification in 24. pg. 7

8 TP and Chl.a (µg/l) Zsd (m) TP and Chl.a, µg/l Zsd, m Time Series: Trophic Indicators, TotalP Chl.a Zsd /3/24 6/3/24 7/3/24 8/29/24 9/28/24 /28/24 Time Series: Trophic Indicators, Typical Year (988-24) 9 8 TP Chl.a Zsd June July Aug Sept Oct 6 pg. 8

9 Perception Perception Time Series: Lake Perception Indicators, 24 6//24 6/3/24 7/2/24 8/9/24 8/29/24 9/8/24 /8/24 Most Favorable 2 Clarity 3 Weeds Recreation 4 5 Least Favorable Time Series: Lake Perception Indicators, Typical Year (988-24) June July Aug Sept Oct Most Favorable 2 3 Clarity Weeds Recreation 4 5 Least Favorable pg. 9

10 Appendix A- CSLAP Water Quality Sampling Results for Lake Bonaparte LNum PName Date Zbot Zsd Zsamp Tot.P NO3 NH3 TDN TN/TP TColor ph Cond25 Ca Chl.a 5 L Bonaparte 6/2/ L Bonaparte 6/29/ L Bonaparte 7/5/ L Bonaparte 7/2/ L Bonaparte 7/9/ L Bonaparte 7/26/ L Bonaparte 8/2/ L Bonaparte 8/8/ L Bonaparte 8/6/ L Bonaparte 8/23/ L Bonaparte 8/3/ L Bonaparte 9/6/ L Bonaparte 9/2/ L Bonaparte 9/23/ L Bonaparte 9/28/ L Bonaparte 6/23/ L Bonaparte 7/5/ L Bonaparte 7/9/ L Bonaparte 8/2/ L Bonaparte 8/6/ L Bonaparte 8/3/ L Bonaparte 9/3/ L Bonaparte 9/27/ L Bonaparte 7/5/ L Bonaparte 7/8/ L Bonaparte 8// L Bonaparte 8/5/ L Bonaparte 8/29/ L Bonaparte 9/2/ L Bonaparte 9/26/ L Bonaparte // L Bonaparte 6/4/ L Bonaparte 6/26/ L Bonaparte 7/4/ L Bonaparte 7/24/ L Bonaparte 8/6/ L Bonaparte 8/2/ L Bonaparte 9/3/ L Bonaparte 9/7/ L Bonaparte 6/3/ L Bonaparte 6/7/ L Bonaparte 7// L Bonaparte 7/5/ L Bonaparte 7/28/ L Bonaparte 8// L Bonaparte 8/25/ L Bonaparte 9/9/ L Bonaparte 7/3/ L Bonaparte 7/27/ L Bonaparte 8// L Bonaparte 8/25/ L Bonaparte 9/8/ L Bonaparte 9/22/ L Bonaparte 6/7/ L Bonaparte 6/28/ L Bonaparte 7/2/ L Bonaparte 7/26/ L Bonaparte 8/9/ L Bonaparte 8/23/ L Bonaparte 9/3/ L Bonaparte 9/2/ L Bonaparte 5/3/ L Bonaparte 6/26/ L Bonaparte 7// L Bonaparte 7/24/ pg.

11 LNum PName Date Zbot Zsd Zsamp Tot.P NO3 NH3 TDN TN/TP TColor ph Cond25 Ca Chl.a 5 L Bonaparte 8/7/ L Bonaparte 8/2/ L Bonaparte 9/5/ L Bonaparte 9/8/ L Bonaparte 6/5/ L Bonaparte 6/9/ L Bonaparte 7/3/ L Bonaparte 7/6/ L Bonaparte 7/3/ L Bonaparte 8/4/ L Bonaparte 8/28/ L Bonaparte 9/2/ L Bonaparte 7/3/ L Bonaparte 8/6/ L Bonaparte 8/3/ L Bonaparte 8/22/ L Bonaparte 8/27/ L Bonaparte 9/3/ L Bonaparte 9// L Bonaparte 9/7/ L Bonaparte 6/3/ L Bonaparte 7/5/ L Bonaparte 7/29/ L Bonaparte 8// L Bonaparte 8/25/ L Bonaparte 9// L Bonaparte 9/23/ L Bonaparte /7/ L Bonaparte 6/8/ L Bonaparte 6/23/ L Bonaparte 7/6/ L Bonaparte 7/2/ L Bonaparte 8/3/ L Bonaparte 8/8/ L Bonaparte 8/3/ L Bonaparte 9/4/ L Bonaparte 6/5/ L Bonaparte 6/29/ L Bonaparte 7/2/ L Bonaparte 7/28/ L Bonaparte 8/2/ L Bonaparte 8/3/ L Bonaparte 9/8/ L Bonaparte /3/ L Bonaparte 6/6/ L Bonaparte 6/2/ L Bonaparte 7/5/ L Bonaparte 7/9/ L Bonaparte 8/2/ L Bonaparte 8/6/ L Bonaparte 8/29/ L Bonaparte 9/2/ L Bonaparte 6/25/ L Bonaparte 7/6/ L Bonaparte 7/3/ L Bonaparte 8/3/ L Bonaparte 8/28/ L Bonaparte 9// L Bonaparte 9/24/ L Bonaparte // L Bonaparte 6// L Bonaparte 6/24/ L Bonaparte 7/8/ L Bonaparte 7/23/ L Bonaparte 8/6/ L Bonaparte 8/9/ L Bonaparte 9/2/ L Bonaparte 9/7/ pg.

12 LNum PName Date Zbot Zsd Zsamp Tot.P NO3 NH3 TDN TN/TP TColor ph Cond25 Ca Chl.a 5 L Bonaparte 6/23/ L Bonaparte 7/8/ L Bonaparte 7/22/ L Bonaparte 8/5/ L Bonaparte 8/9/ L Bonaparte 9// L Bonaparte 9/5/ L Bonaparte 9/3/ L Bonaparte 9/22/ L Bonaparte 7/27/ L Bonaparte 8/25/ L Bonaparte 7/3/ L Bonaparte 8/3/ L Bonaparte 8/22/ L Bonaparte 8/27/ L Bonaparte 9/3/ L Bonaparte 9// L Bonaparte 9/7/ L Bonaparte 6/3/ L Bonaparte 7/5/ L Bonaparte 7/29/ L Bonaparte 8/25/ L Bonaparte 9// L Bonaparte 9/23/ L Bonaparte /7/ L Bonaparte 6/8/ L Bonaparte 6/23/ L Bonaparte 7/6/ L Bonaparte 7/2/ L Bonaparte 8/3/ L Bonaparte 8/8/ L Bonaparte 8/3/ L Bonaparte 9/4/ L Bonaparte 6/5/ L Bonaparte 7/2/ L Bonaparte 8/2/ L Bonaparte 9/8/ L Bonaparte 6/6/ L Bonaparte 7/5/ L Bonaparte 8/2/ L Bonaparte 8/29/ L Bonaparte 6/25/ L Bonaparte 7/3/ L Bonaparte 8/28/ L Bonaparte 9/24/ L Bonaparte 6// L Bonaparte 7/8/ L Bonaparte 8/6/ L Bonaparte 9/2/ L Bonaparte 6/23/ L Bonaparte 7/8/ L Bonaparte 7/22/ L Bonaparte 8/5/ L Bonaparte 8/9/ L Bonaparte 9// L Bonaparte 9/5/ L Bonaparte 9/3/ L Bonaparte-2 7/3/ L Bonaparte-2 8/6/ L Bonaparte-2 8/3/ L Bonaparte-2 8/22/ L Bonaparte-2 8/27/ L Bonaparte-2 9/3/ L Bonaparte-2 9// L Bonaparte-2 9/7/ L Bonaparte-2 7/3/ L Bonaparte-2 8/3/ L Bonaparte-2 8/22/ pg. 2

13 LNum PName Date Zbot Zsd Zsamp Tot.P NO3 NH3 TDN TN/TP TColor ph Cond25 Ca Chl.a 5. L Bonaparte-2 8/27/ L Bonaparte-2 9/3/ L Bonaparte-2 9// L Bonaparte-2 9/7/ LNum PName Date Type TAir TH2 QA QB QC QD QFQG 5 L Bonaparte 6/2/988 epi 5 L Bonaparte 6/29/988 epi L Bonaparte 7/5/988 epi L Bonaparte 7/2/988 epi L Bonaparte 7/9/988 epi L Bonaparte 7/26/988 epi L Bonaparte 8/2/988 epi L Bonaparte 8/8/988 epi L Bonaparte 8/6/988 epi L Bonaparte 8/23/988 epi L Bonaparte 8/3/988 epi L Bonaparte 9/6/988 epi L Bonaparte 9/2/988 epi L Bonaparte 9/23/988 epi L Bonaparte 9/28/988 epi 5 5 L Bonaparte 6/23/989 epi L Bonaparte 7/5/989 epi L Bonaparte 7/9/989 epi L Bonaparte 8/2/989 epi L Bonaparte 8/6/989 epi L Bonaparte 8/3/989 epi L Bonaparte 9/3/989 epi L Bonaparte 9/27/989 epi L Bonaparte 7/5/99 epi L Bonaparte 7/8/99 epi L Bonaparte 8//99 epi L Bonaparte 8/5/99 epi L Bonaparte 8/29/99 epi L Bonaparte 9/2/99 epi L Bonaparte 9/26/99 epi L Bonaparte //99 epi L Bonaparte 6/4/99 epi L Bonaparte 6/26/99 epi L Bonaparte 7/4/99 epi L Bonaparte 7/24/99 epi L Bonaparte 8/6/99 epi L Bonaparte 8/2/99 epi L Bonaparte 9/3/99 epi L Bonaparte 9/7/99 epi L Bonaparte 6/3/992 epi L Bonaparte 6/7/992 epi L Bonaparte 7//992 epi L Bonaparte 7/5/992 epi L Bonaparte 7/28/992 epi L Bonaparte 8//992 epi L Bonaparte 8/25/992 epi L Bonaparte 9/9/992 epi L Bonaparte 7/3/998 epi L Bonaparte 7/27/998 epi L Bonaparte 8//998 epi L Bonaparte 8/25/998 epi L Bonaparte 9/8/998 epi L Bonaparte 9/22/998 epi L Bonaparte 6/7/999 epi AQ- PC AQ- MC- Chla LR Ana-a Cyl FP- Chl FP- BG HAB form pg. 3 Shore HAB

14 LNum PName Date Type TAir TH2 QA QB QC QD QFQG 5 L Bonaparte 6/28/999 epi L Bonaparte 7/2/999 epi L Bonaparte 7/26/999 epi L Bonaparte 8/9/999 epi L Bonaparte 8/23/999 epi L Bonaparte 9/3/999 epi L Bonaparte 9/2/999 epi L Bonaparte 5/3/2 epi L Bonaparte 6/26/2 epi L Bonaparte 7//2 epi L Bonaparte 7/24/2 epi L Bonaparte 8/7/2 epi L Bonaparte 8/2/2 epi L Bonaparte 9/5/2 epi L Bonaparte 9/8/2 epi L Bonaparte 6/5/2 epi L Bonaparte 6/9/2 epi L Bonaparte 7/3/2 epi L Bonaparte 7/6/2 epi L Bonaparte 7/3/2 epi L Bonaparte 8/4/2 epi L Bonaparte 8/28/2 epi L Bonaparte 9/2/2 epi L Bonaparte Site 7/3/27 epi L Bonaparte Site 8/6/27 epi L Bonaparte Site 8/3/27 epi L Bonaparte Site 8/22/27 epi L Bonaparte Site 8/27/27 epi L Bonaparte Site 9/3/27 epi L Bonaparte Site 9//27 epi L Bonaparte Site 9/7/27 epi L Bonaparte- 6/3/28 epi L Bonaparte- 7/5/28 epi L Bonaparte- 7/29/28 epi L Bonaparte- 8//28 epi L Bonaparte- 8/25/28 epi L Bonaparte- 9//28 epi L Bonaparte- 9/23/28 epi L Bonaparte- /7/28 epi L Bonaparte- 6/8/29 epi L Bonaparte- 6/23/29 epi L Bonaparte- 7/6/29 epi L Bonaparte- 7/2/29 epi L Bonaparte- 8/3/29 epi L Bonaparte- 8/8/29 epi L Bonaparte- 8/3/29 epi L Bonaparte- 9/4/29 epi L Bonaparte 6/5/2 epi L Bonaparte 6/29/2 epi L Bonaparte 7/2/2 epi L Bonaparte 7/28/2 epi L Bonaparte 8/2/2 epi L Bonaparte 8/3/2 epi L Bonaparte 9/8/2 epi L Bonaparte /3/2 epi L Bonaparte 6/6/2 epi L Bonaparte 6/2/2 epi L Bonaparte 7/5/2 epi L Bonaparte 7/9/2 epi L Bonaparte 8/2/2 epi AQ- PC AQ- MC- Chla LR Ana-a Cyl FP- Chl FP- BG HAB form pg. 4 Shore HAB

15 AQ- AQ- MC- FP- FP- HAB Shore LNum PName Date Type TAir TH2 QA QB QC QD QFQG PC Chla LR Ana-a Cyl Chl BG form HAB 5 L Bonaparte 8/6/2 epi <.4 <. 5 L Bonaparte 8/29/2 epi L Bonaparte 9/2/2 epi L Bonaparte 6/25/22 epi <.3 <.428 F 5 L Bonaparte 7/6/22 epi <.3 < I 5 L Bonaparte 7/3/22 epi <.3 < FI 5 L Bonaparte 8/3/22 epi < L Bonaparte 8/28/22 epi <.3 < I 5 L Bonaparte 9//22 epi < I 5 L Bonaparte 9/24/22 epi <.3 < I 5 L Bonaparte //22 epi <.3 < L Bonaparte 6//23 epi <.3 < L Bonaparte 6/24/23 epi <.3 < I 5 L Bonaparte 7/8/23 epi <.3 < I 5 L Bonaparte 7/23/23 epi <.3 < I 5 L Bonaparte 8/6/23 epi < I 5 L Bonaparte 8/9/23 epi <.3 <.5.7. I 5 L Bonaparte 9/2/23 epi <.3 <. 2.. I 5 L Bonaparte 9/7/23 epi <.3 < L Bonaparte 6/23/24 epi <.47 <.44 < L Bonaparte 7/8/24 epi <.4 <.48 < i 5 L Bonaparte 7/22/24 epi <.39 <.24 < i i 5 L Bonaparte 8/5/24 epi <.38 <.5 <...3 i i 5 L Bonaparte 8/9/24 epi <.26 <. <.2.. i i 5 L Bonaparte 9//24 epi <.24 <.3 <..4. i i 5 L Bonaparte 9/5/24 epi <.24 <.3 <..7.3 i i 5 L Bonaparte 9/3/24 epi 4..2 <.59 <.85 < L Bonaparte 9/22/998 hypo 7 5 L Bonaparte 7/27/998 hypo 7 5 L Bonaparte 8/25/998 hypo 9 5 L Bonaparte Site 7/3/27 hypo 8 5 L Bonaparte Site 8/3/27 hypo 7 5 L Bonaparte Site 8/22/27 hypo 8 5 L Bonaparte Site 8/27/27 hypo 8 5 L Bonaparte Site 9/3/27 hypo 8 5 L Bonaparte Site 9//27 hypo 7 5 L Bonaparte Site 9/7/27 hypo 7 5 L Bonaparte- 6/3/28 hypo 7 5 L Bonaparte- 7/5/28 hypo 7 5 L Bonaparte- 7/29/28 hypo 8 5 L Bonaparte- 8//28 hypo 7 5 L Bonaparte- 8/25/28 hypo 7 5 L Bonaparte- 9//28 hypo 8 5 L Bonaparte- 9/23/28 hypo 8 5 L Bonaparte- /7/28 hypo 4 5 L Bonaparte- 6/8/29 hypo 7 5 L Bonaparte- 6/23/29 hypo 9 5 L Bonaparte- 7/6/29 hypo 9 5 L Bonaparte- 7/2/29 hypo 9 5 L Bonaparte- 8/3/29 hypo 5 L Bonaparte- 8/8/29 hypo 5 L Bonaparte- 8/3/29 hypo 5 L Bonaparte- 9/4/29 hypo 9 5 L Bonaparte 6/6/2 hypo 5 L Bonaparte 7/5/2 hypo 2 5 L Bonaparte 8/2/2 hypo 5 L Bonaparte 8/29/2 hypo 5 L Bonaparte 7/3/22 hypo 5 L Bonaparte 8/28/22 hypo 5 L Bonaparte 9/24/22 hypo 9 pg. 5

16 LNum PName Date Type TAir TH2 QA QB QC QD QFQG 5 L Bonaparte 6//23 hypo 5 L Bonaparte 7/8/23 hypo 5 L Bonaparte 8/6/23 hypo 3 5 L Bonaparte 9/2/23 hypo 4 5 L Bonaparte 6/23/24 hypo 9 5 L Bonaparte 7/8/24 hypo 9 5 L Bonaparte 7/22/24 hypo 9 5 L Bonaparte 8/5/24 hypo 9 5 L Bonaparte 8/9/24 hypo 9 5 L Bonaparte 9//24 hypo 5 L Bonaparte 9/5/24 hypo 9 5 L Bonaparte 9/3/24 hypo 5- L Bonaparte Site 2 8/6/27 hypo L Bonaparte Site 2 8/3/27 hypo L Bonaparte Site 2 8/22/27 hypo 2 5- L Bonaparte Site 2 8/27/27 hypo 2 5- L Bonaparte Site 2 9/3/27 hypo 2 5- L Bonaparte Site 2 9//27 hypo 9 5- L Bonaparte Site 2 9/7/27 hypo 7 AQ- PC AQ- MC- Chla LR Ana-a Cyl FP- Chl FP- BG HAB form Shore HAB pg. 6

17 Legend Information Indicator Description Detection Limit General Information Lnum lake number (unique to CSLAP) Lname name of lake (as it appears in the Gazetteer of NYS Lakes) Date sampling date Standard (S) / Criteria (C) Field Parameters Zbot lake depth at sampling point, meters (m) Zsd Secchi disk transparency or clarity.m.2m ( C) Zsamp water sample depth (m) (epi = epilimnion or surface; bot = bottom).m none Tair air temperature ( C) -C none TH2 water temperature ( C) -C none Laboratory Parameters Tot.P total phosphorus (mg/l).3 mg/l.2 mg/l ( C) NOx nitrate + nitrite (mg/l). mg/l mg/l NO3 (S), 2 mg/l NO2 (S) NH4 total ammonia (mg/l). mg/l 2 mg/l NH4 (S) TN total nitrogen (mg/l). mg/l none TN/TP nitrogen to phosphorus (molar) ratio, = (TKN + NOx)*2.2/TP none TCOLOR true (filtered) color (ptu, platinum color units) ptu none ph powers of hydrogen (S.U., standard ph units). S.U. 6.5, 8.5 S.U. (S) Cond25 specific conductance, corrected to 25C (umho/cm) umho/cm none Ca calcium (mg/l) mg/l none Chl.a chlorophyll a (ug/l). ug/l none Fe iron (mg/l). mg/. mg/l (S) Mn manganese (mg/l). mg/l.3 mg/l (S) As arsenic (ug/l) ug/l ug/l (S) AQ-PC Phycocyanin (aquaflor) (unitless) unit none AQ-Chl Chlorophyll a (aquaflor) (ug/l) ug/l none MC-LR Microcystis-LR (ug/l). ug/l ug/l potable (C) 2 ug/l swimming (C) Ana Anatoxin-a (ug/l) variable none Cyl Cylindrospermposin (ug/l). ug/l none FP-Chl, FP-BG Fluoroprobe total chlorophyll, fluoroprobe blue-green chlorophyll (ug/l). ug/l none Lake Assessment QA water quality assessment; = crystal clear, 2 = not quite crystal clear, 3 = definite algae greenness, 4 = high algae levels, 5 = severely high algae levels QB aquatic plant assessment; = no plants visible, 2 = plants below surface, 3 = plants at surface, 4 = plants dense at surface, 5 = surface plant coverage QC QD recreational assessment; = could not be nicer, 2 = excellent, 3 = slightly impaired, 4 = substantially impaired, 5 = lake not usable reasons for recreational assessment; = poor water clarity, 2 = excessive weeds, 3 = too much algae, 4 = lake looks bad, 5 = poor weather, 6 = litter/surface debris, 7 = too many lake users, 8 = other QF, QG Health and safety issues today (QF) and past week (QG); = none, = taste/odor, 2 = GI illness humans/animals, 3 = swimmers itch, 4 = algae blooms, 5 = dead fish, 6 = unusual animals, 7 = other HAB form, Shore HAB HAB evaluation; A = spilled paint, B = pea soup, C = streaks, D = green dots, E = bubbling scum, F = green/brown tint, G = duckweed, H = other, I = no bloom pg. 7

18 Appendix B: Priority Waterbody Listing for Lake Bonaparte pg. 8

19 pg. 9

20 Avg Summer Chl.a (ug/l) Avg Summer TN/TP Avg Summer TP (mg/l) Avg Summer TP (mg/l) Avg Summer Water Clarity (m) Avg Summer Lake Perception Appendix C- Long Term Trends: Lake Bonaparte Long Term Trends: Water Clarity Decrease 2 to 23, but rise to normal 4 Most readings typical of mesoligotrophic lakes, consistent with TP and algae levels Eutrophic Long Term Trends: Lake Perception No trends apparent Recreational perception more closely linked to changes in weeds than water quality Favorable/ Subsurface Weeds Mesotrophic Oligotrophic Clarity Plant Coverage Recreation Slightly Impaired/ Surface Weeds Unfavorable / Dense Weeds Long Term Trends: Phosphorus Slight increase since 28 Most readings typical of oligotrophic lakes, in range of clarity and algae levels.3 Long Term Trends: Bottom Phosphorus.7 Slightly higher bottom than surface TP Bottom TP readings and strong thermal layer suggest little TP migration to surface.25 Eutrophic Mesotrophic Surface Bottom.5 Oligotrophic Long Term Trends: Chlorophyll a No trends apparent Most readings typical of mesoligotrophic lakes, in range of clarity and TP readings Eutrophic Mesotrophic Oligotrophic Long Term Trends: N:P Ratio No trends apparent Most readings indicate phosphorus limits algae growth Phosphorus Limited N or P Limited Nitrogen Limited pg. 2

21 Avg Summer Cond (umho/cm) Avg Summer Water Temp (C) Avg Summer ph Avg Summer Calcium (mg/l) Avg Summer Nitrogen (mg/l) Avg Summer Color (ptu) Long Term Trends: Nitrogen NOx 27-4, but no trends NH4 or TN Low NOx, ammonia and total nitrogen readings Long Term Trends: ph NOx TN NH4 ph decreasing significantly since early s Most readings typical of circumneutral to slightly alkaline lakes Long Term Trends: Conductivity No trends apparent Most readings typical of lakes with intermediate hardness Highly Alkaline (Above NYS WQ standard) Slightly Alkaline (Acceptable) Circumneutral (Acceptable) Acidic (Below NYS WQ standard) Hardwater Long Term Trends: Color Higher color since 2- likely due to lab Most readings typical of weakly colored lakes, and do not appear to affect clarity Long Term Trends: Calcium No trends apparent; lower Ca in 24 Most readings indicate high susceptibility to zebra mussels (not found in lake) Long Term Trends: Water Temperature Colored Weakly Colored Uncolored Highly Susceptible to Zebra Mussels May Be Susceptible to Zebra Mussels Not Susceptible to Zebra Mussels Recent drop in surface/deep after 8-2 rise Much colder bottom temperatures indicates strong thermal layers in lake 5 Softwater 5 Surface Bottom pg. 2

22 Appendix D: Algae Testing Results from SUNY ESF Study Most algae are harmless, naturally present, and an important part of the food web. However excessive algae growth can cause health, recreational, and aesthetic problems. Some algae can produce toxins that can be harmful to people and animals. High quantities of these algae are called harmful algal blooms (HABs). CSLAP lakes have been sampled for a variety of HAB indicators since 28. This was completed on selected lakes as part of a NYS DOH study from In 2, enhanced sampling on all CSLAP lakes was initiated through an EPAfunded project that has continued through the current sampling season. This study has evaluated a number of HAB indicators as follows: Algae types - blue green, green, diatoms, and "other" Algae densities Microscopic analysis of bloom samples Algal toxin analysis Some of these results are reported in other portions of these reports. This appendix the seasonal change in blue green algae, other algae types, and the primary algal toxin (microcystin-lr, a liver toxin). Analysis was completed on open water samples and, for some lakes, shoreline samples that were collected when visual evidence of blooms were apparent. Results are compared to the DEC criteria of 3 ug/l blue green chlorophyll a and 2 ug/l microcystin-lr (based on the World Health Organization (WHO) threshold for unsafe swimming conditions) and the WHO provisional criteria for long-term protection of treated water supplies (= ug/l microcystin-lr). The data for algae types are drawn from a high end fluorometer used by SUNY ESF. While these results are useful for timely approximation of lake conditions, they are not as accurate as the total chlorophyll results measured as a regular part of CSLAP since 986 in all open water samples. Therefore these results are used judiciously in the assessment of sampled waterbodies. Two separate samples are evaluated. A sample is taken at the CSLAP sample point at the deepest point of the lake at every sample session. In addition, shoreline samples can be taken when a bloom is visible. It should be noted that shoreline conditions can vary significantly over time and from one location to another. The shoreline bloom sampling results summarized below are not collected as routinely as open water samples, and therefore represent snapshots in time. It is assumed that sampling results showing high blue green algae and/or toxin levels indicate that algae blooms may be common and/or widespread on these lakes. However, the absence of elevated blue green algae and toxin levels does not assure the lack of shoreline blooms on these lakes. Elevated open water readings may indicate a higher likelihood of shoreline blooms, but in some lakes, these shoreline blooms have not been (well) documented. The results from these samples are summarized within the CSLAP report for the lake. pg. 22

23 Chlorophyll a (ug/l) Chlorophyll a (ug/l) Chlorophyll a (ug/l) Microcystis-LR (ug/l) Chlorophyll a (ug/l) Microcystis-LR (ug/l) Open Water Algae Levels Open Total Chl.a Open BG Chl.a BGA Bloom Criteria 6/ 6/6 7/ 7/6 7/3 8/5 8/3 9/4 9/29 Figure D: 23 Open Water Total and BGA Chl.a 23 Open Water Toxin Levels Open MC-LR WHO Hi Risk Swimming Criteria WHO Lo Risk Drinking Criteria. 6/ 6/6 7/ 7/6 7/3 8/5 8/3 9/4 9/29 Figure D2: 23 Open Water Microcystin-LR 23 Shoreline Algae Levels BGA Bloom Criteria 23 Shoreline Toxin Levels Shore MC-LR WHO Hi Risk Swimming Criteria Shore Total Chl.a Shore BG Chl.a WHO Lo Risk Drinking Criteria 6/ 6/6 7/ 7/6 7/3 8/5 8/3 9/4 9/29 Figure D3: 23 Shoreline Total and BGA Chl.a. 6/ 6/6 7/ 7/6 7/3 8/5 8/3 9/4 9/29 Figure D4: 23 Shoreline Microcystin-LR 23 Open Water Algae Samples 23 Shoreline Algae Samples 8 6 BG Algae Green Algae Diatoms Other Algae BG Algae Green Algae Diatoms Other Algae 4 2 6/ 6/24 7/8 7/23 8/6 8/9 9/2 9/7 Figure D5: 23 Open Water Algae Types 6/ 6/24 7/8 7/23 8/6 8/9 9/2 9/7 Figure D6: 23 Shoreline Algae Types pg. 23

24 Chlorophyll a (ug/l) Chlorophyll a (ug/l) Chlorophyll a (ug/l) Microcystis-LR (ug/l) Chlorophyll a (ug/l) Microcystis-LR (ug/l) Open Water Algae Levels Open Total Chl.a Open BG Chl.a BGA Bloom Criteria 5/5 6/4 6/24 7/4 8/3 8/23 9/2 /2 Figure D7: 24 Open Water Total and BGA Chl.a 24 Open Water Toxin Levels Open MC-LR WHO Hi Risk Swimming Criteria WHO Lo Risk Drinking Criteria. 5/5 6/4 6/24 7/4 8/3 8/23 9/2 /2 Figure D8: 24 Open Water Microcystin-LR 24 Shoreline Algae Levels BGA Bloom Criteria 24 Shoreline Toxin Levels WHO Hi Risk Swimming Criteria Shore MC-LR Shore Total Chl.a Shore BG Chl.a WHO Lo Risk Drinking Criteria 5/5 6/4 6/24 7/4 8/3 8/23 9/2 /2 Figure D9: 24 Shoreline Total and BGA Chl.a. 5/5 6/4 6/24 7/4 8/3 8/23 9/2 /2 Figure D: 24 Shoreline Microcystin-LR 4 24 Open Water Algae Samples BG Algae Green Algae Diatoms Other Algae 24 Shoreline Algae Samples BG Algae Green Algae Diatoms Other Algae 2 6/23 7/8 7/22 8/5 8/9 9/ 9/5 9/3 Figure D: 24 Open Water Algae Types 6/23 7/8 7/22 8/5 8/9 9/ 9/5 9/3 Figure D2: 24 Shoreline Algae Types pg. 24

25 Appendix E: AIS Species in Lewis County The table below shows the invasive aquatic plants and animals that have been documented in Lewis County, as cited in either the imapinvasives database ( or in the NYSDEC Division of Water database. These databases may include some, but not all, non-native plants or animals that have not been identified as Prohibited and Regulated Invasive Species in New York state regulations (6 NYCRR Part 575; This list is not complete, but instead represents only those species that have been reported and verified within the county. If any additional aquatic invasive species (AIS) are known or suspected in these or other waterbodies in the county, this information should be reported through imap invasives or by contacting NYSDEC at Aquatic Invasive Species - Lewis County Waterbody Kingdom Common name Scientific name Effley Falls Pond Animal Mud bithynia snail Bithynia tentaculata Lake Bonaparte Plant Eurasian watermilfoil Myriophyllum spicatum Soft Maple Reservoir Plant Variable watermilfoil Myriophyllum heterophyllum pg. 25

26 Appendix F: Watershed and Land Use Map for Lake Bonaparte This watershed and land use map was developed using USGS StreamStats and ESRI ArcGIS using the 26 land use satellite imagery. The actual watershed map and present land uses within this watershed may be slightly different due to the age of the underlying data and some limits to the use of these tools in some geographic regions and under varying flow conditions. However, these maps are intended to show the approximate extent of the lake drainage basin and the major land uses found within the boundaries of the basin. pg. 26