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HomeMy WebLinkAbout20080675 Ver 2_More Info Received_20081112b8 - o U'1 S V 2. CLEARWATER ENVIRONMENTAL CONSULTANTS, INC. November 10, 2008 Mr. Ian McMillan NC Division of Water Quality 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center Raleigh, North Carolina 27699 9 QL_5 9 0 W NOV 12 2008 RE: Ammons Mountain Properties, Inc. DEws-wATERCWATER WETLANDS AND STORMWATER BRANCH Traditions Subdivision - Pond Monitoring Madison County, North Carolina Corps Action ID: 2008-2246; DWQ Project # 08-0675 Mr. McMillan, Please reference the Individual Permit application dated July 30, 2008 submitted by C1earWater Environmental Consultants, Inc. (CEC) on behalf of Mr. Justus Ammons of Ammons Mountain Properties, Inc. (the applicant). The applicant is currently developing a low-density development to be known as Traditions near Mars Hill in Madison County, North Carolina. As a part of the development plan, the applicant has proposed a small on-line pond in the northern portion of the property. At the request of the NC Division of Water Quality (DWQ) and in accordance with the "Predictability Study Protocol for Sampling Reference Impoundments - DRAFT" dated February 28, 2008, CEC submitted the final "Water Quality Monitoring and Sampling Protocol for Referenced Impoundments" on April 28, 2008 (Attachment A); the preliminary plan was approved by Ms. Susan Gale via email on April 14, 2008 (Attachment B). The applicant and CEC, with guidance from the DWQ, developed a monitoring plan to evaluate water quality standards in two impoundments located in the Southern Crystalline Ridges and Mountains ecoregion of North Carolina. CEC chose two ponds, comparable in size, location, and character, and conducted sampling in accordance with the approved plan. The sampling provides data that can be used as a comparison, as well as, offer guidance for construction at the proposed pond within the Traditions development. Methods, collected data, and an explanation of CEC's findings are discussed below. Proposed Pond Traditions is located near Mars Hill in Madison County, North Carolina. The development will be approximately 400 acres and will consist of approximately 200 residential lots and a 0.75-acre on-line pond. The watershed draining to the proposed pond is approximately 45 acres. As proposed, the pond will impound an unnamed tributary to Crooked Creek and have a cold-water release discharge mechanism. Crooked Creek is classified as a Class "WS-II; HQW" water by the DWQ. 718 Oakland Street Hendersonville, North Carolina 28791 Phone: 828-698-9800 Fax: 828-698-9003 www.cwenv.com Study Ponds The Adams Pond is located approximately 0.75 miles northeast of the proposed Traditions subdivision in Madison County, North Carolina. This pond has a surface area less than 2 acres with a 130-acre watershed, has a cold-water release discharge mechanism, and impounds an unnamed tributary to Crooked Creek. Crooked Creek is classified as a Class "WS-II; HQW" water by the DWQ. The Casey Pond is located approximately 0.65 miles northeast of the proposed Traditions subdivision in Madison County, North Carolina. This pond has a surface area less than 1 acre with a 25-acre watershed, has a top-water release discharge mechanism, and impounds an unnamed tributary to Crooked Creek. Crooked Creek is classified as a Class "WS-II; HQW" water by the DWQ. A vicinity map and USGS topographic map for each site has been included for review (Figures 1-2). The following table summarizes the above information: Proposed Pond Adams Pond Case Pond Pond Size acres 0.75 <2 <1 Watershed Size (acres) 45 130 25 Ecoregion Southern Crystalline Ridges and Mountains Southern Crystalline Ridges and Mountains Southern Crystalline Ridges and Mountains Water Release cold-water cold-water top-water Impounded Stream UT to Crooked Creek UT to Crooked Creek UT to Crooked Creek Stream Classification WS-II; HQW WS-II; HQW WS-11; HQW Water Quality Sampling Locations Sampling as outlined in the approved plan began on May 6, 2008 and concluded on September 23, 2008. At each impoundment, six sampling stations were identified. A summary of the general locations of the sampling stations is as follows: • Station 1 was located upstream of the impoundment in the flowing (lotic) stream reach and samples were taken near the water surface; • Stations 2, 3, and 4 were evenly spaced across the centerline of the reference impoundment (lentic) and samples were taken from within 0.1 meter of the water surface and at 1.0 meter intervals to the pond bottom; • Station 5 was located downstream and within 200 linear feet of the impoundment outfall in the flowing (lotic) stream reach and samples were taken near the water surface; and • Station 6 was located downstream and between 200 and 500 linear feet of the impoundment outfall in the flowing (lotic) stream reach and samples were taken near the water surface. 2 Water Quality Sampling Parameters Six water quality sampling stations were established at the two reference ponds as described above. Water samples were taken every other week during the growing season from May 6, 2008 through September 23, 2008, yielding 11 sample sets. Samples were divided into lotic samples which include the samples and measurements taken at Stations 1, 5, and 6; and lentic samples which include samples and measurements taken at Stations 2, 3, and 4. The type of sample or measurement taken (field or grab) and parameters measured are outlined below. • Lotic Samples (Stations 1, 5, and 6) o Field Measurements (taken near the surface) ¦ temperature ¦ dissolved oxygen (% and mg/1) ¦ pH ¦ specific conductance o Grab Samples (taken near the surface at/near the thalweg) ¦ nutrients (total phosphorous, total Kjeldahl nitrogen, ammonia [NH3], nitrate + nitrite [NO2+NO31, chlorophyll-a) ¦ total suspended solids (total suspended residue) ¦ turbidity ¦ fecal coliform • Lentic Samples (Stations 2, 3, and 4) o Field Measurements (taken O.lm below the surface and at lm intervals to the pond bottom) ¦ temperature ¦ dissolved oxygen (% and mg/1) ¦ pH ¦ specific conductance o Field Measurement (1 measurement reported at each sample location) ¦ Secchi depth transparency - reported value as the average of two measurements o Grab Samples (taken O.lm below the surface) ¦ fecal coliform o Grab Samples Using a LabLine (taken as spatial composites of the photic zone, defined as twice the Secchi depth) ¦ nutrients (total phosphorous, total Kjeldahl nitrogen, ammonia [NHA nitrate + nitrite [NO2+NO31, chlorophyll-a) ¦ total suspended solids (total suspended residue) ¦ turbidity 3 Water Quality Sampling Results and Discussion Each parameter was monitored at each station from May 6, 2008 through September 23, 2008. Each parameter and a summary of monitoring data are indicated in this section; however, a compiled table including all data for all parameters is enclosed for review (Attachment C). Acceptable ranges of water quality parameters are defined by the DWQ and are based on a tributary's surface water classification. The evaluated tributaries and their surface water classifications can be found in the respective table illustrated under the "Study Ponds" section of this letter. Surface water classifications present in this study include Class "WS-II" and "HQW" waters. Class "WS-II" waters are waters that are protected as water supplies, which are generally in predominately undeveloped watersheds. Class "WS-I1" waters are suitable for all Class "C" uses. Class "C" waters are those waters protected for secondary recreation, fishing, wildlife, fish and aquatic life propagation and survival, agriculture and other uses suitable for Class "C" waters. Secondary recreation includes wading, boating, and other uses involving human body contact with water where such activities take place in an infrequent, unorganized, or incidental manner. High Quality Waters (HQW) is a supplemental classification intended to protect waters with quality higher than state water quality standards. HQW are waters, which are rated as excellent based on biological, physical, and chemical characteristics. The water quality standards for all fresh surface waters, regardless of classification, are the basic standards applicable to Class "C" waters. Standards associated with Class "C" waters, along with additional and more stringent standards applicable to other specific freshwater classifications are specified in NC Administrative Code 15A NCAC 0213.0100, .0200, & .0300, also known as the "Redbook". A review of the "Redbook" for standards related to water temperature, dissolved oxygen (DO), pH, turbidity, chlorophyll-a, and fecal coliform for waters classified as "WS-I1; HQW", yielded no additional standards or requirements other than those listed for Class "C" waters. Total phosphorus, total nitrogen, ammonia, nitrate+nitrite, total suspended solids (total suspended residue), and conductivity are not listed as parameters with state water quality standards in the "Redbook". Total Phosphorus Phosphorus is one of the key elements necessary for growth of plants and animals. Phosphorus in elemental form is very toxic and is subject to bioaccumulation. Phosphates are formed from this element. Phosphates exist in three forms; the sum of all phosphorus forms is termed total phosphorus. Phosphates are found in raw sewage and animal waste, detergents, fertilizers, and organic pesticides. They may exist in solution, as particles, as loose fragments, or in the bodies of aquatic organisms. 4 Rainfall can cause varying amounts of phosphates to wash from farm soils or fertilized lawns into nearby waterways. Phosphate will stimulate the growth of plankton and aquatic plants, which provide food for aquatic life. This increased growth may cause an increase in the fish population and improve the overall water quality. However, if an excess of phosphate enters the waterway, algae and aquatic plants will grow wildly, choke up the waterway and use up large amounts of oxygen causing eutrophication. The rapid growth of aquatic vegetation can cause the death and decay of vegetation and aquatic life because of the decrease in dissolved oxygen levels (Kentucky Water Watch). A summary of total phosphorus sampling results for each of the six locations at the Adams Pond and the Casey Pond are listed below. Phosphorus ran es from rab samples m Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 A High 1.1 0.43 ND 0.15 10.4 8 dams Pond Low ND ND ND ND 0.17 0.18 Avg 0.36 0.13 0.10 0.10 2.74 1.6 High 3.1 0.2 0.14 0.16 7.6 0.97 Casey Pond Low ND ND ND ND 0.29 0.17 Avg 1.18 0.12 0.11 0.12 2.44 0.61 Ti,4on-uectect nmtt ror pnospnorus is u.iu mg/i. **To determine averages (avg), 0.10 mg/1 was substituted for ND. General trends are noticeable in the data (Attachment C): total phosphorus levels increase when comparing upstream (Station 1) and downstream (Stations 5 and 6) stations; and total phosphorus levels decrease in pond stations (Stations 2, 3, and 4). The "Redbook" does not include a description of state water quality standards or acceptable ranges for total phosphorus in lotic or lentic systems; therefore, a conclusion as to whether these measurements would violate a state water quality standard cannot be made. Total Kjeldahl Nitrogen, Ammonia, and Nitrate+Nitrite Nitrogen is second only to phosphorus as an important nutrient for plant and algae growth. A pond's nitrogen sources vary widely. Nitrogen compounds often exceed 0.5 mg/1 in rainfall, so precipitation may be the main nitrogen source for some impoundments. In most cases, however, the amount of nitrogen in pond water corresponds to local land use. Nitrogen may come from fertilizer and animal wastes on agricultural lands, human waste from sewage treatment plants or septic systems, and lawn fertilizers used on nearby property. Nitrogen may enter an impoundment from surface runoff or groundwater sources. Nitrogen exists in ponds in several forms. Analysis usually includes nitrate+nitrite, ammonia, and organic nitrogen plus ammonia (Kjeldahl nitrogen). Nitrogen does not occur naturally in soil minerals, but is a major component of all organic (plant and animal) matter. Decomposing organic matter releases ammonia, which is converted to nitrate if oxygen is present. This conversion occurs more rapidly at higher water temperatures. All inorganic forms of nitrogen (ammonia, nitrate, and nitrite) can be used by aquatic plants and algae (Wisconsin Department of Natural Resources). 5 A summary of total Kjeldahl nitrogen, ammonia, and nitrate+nitrite sampling results for each of the six locations at the Adams Pond and the Casey Pond are listed below. Total Kjeldahl Nitro en ran es from grab sample (mg/1). Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 High 4.2 2.1 1.7 1.8 9.9 46.3 Adams Pond Low ND ND ND ND ND ND Avg 1.84 1.28 0.90 0.86 4.29 10.45 High 47.5 6.1 2.7 2.2 12.2 6.3 Casey Pond Low ND 0.59 ND ND 1.7 0.9 Avg 8.49 1.82 1.46 1.43 6.27 2.64 *Non-dectect limit for total Kjeldahl nitrogen is 0.5 mg/l. **To determine averages (avg), 0.5 mg/I was substituted for ND. Ammonia ranges from ab samples ( g/1). Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 A High 0.14 ND 0.15 ND 0.19 0.75 dams Pond Low ND ND ND ND ND ND Avg 0.10 0.10 0.10 0.10 0.11 0.16 High 0.23 0.36 0.30 0.34 0.72 ND Casey Pond Low ND ND ND ND ND ND Avg 0.11 0.13 0.12 0.12 0.16 0.10 *Non-dectect limit for ammonia is 0.10 mg/l. **To determine averages (avg), 0.10 mg/1 was substituted for ND. Nitrate+Nitrite ranges from grab sam les m Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 Ad High 0.30 0.11 ND ND 0.44 0.33 ams Pond Low ND ND ND ND ND ND Avg 0.16 0.10 0.10 0.10 0.17 0.13 C High 0.48 0.10 0.19 0.11 0.86 0.28 asey Pond Low ND ND ND ND ND ND Avg 0.17 0.10 0.11 0.10 0.23 0.14 *Non-dectect limit for nitrate+nitrate is 0.10 mg/l. **To determine averages (avg), 0.10 mg/1 was substituted for ND. General trends are noticeable in the data (Attachment C): total Kjeldahl nitrogen levels increase when comparing upstream (Station 1) and downstream (Stations 5 and 6) stations; total Kjeldahl nitrogen levels decrease at pond stations (Stations 2, 3, and 4); ammonia and nitrate+nitrite levels are consistently low or at non-detectable levels at all stations. The "Redbook" does not include a description of state water quality standards or acceptable ranges for total Kjeldahl nitrogrn, ammonia, or nitrate+nitrite in lotic or lentic systems; therefore, a conclusion as to whether these measurements would violate a state water quality standard can not be made. 6 Chloroph ly l-a Chlorophyll is the green pigment in plants that allows them to photosynthesize. Chlorophyll-a is a measure of the portion of these green pigments that are still actively respiring and photosynthesizing at the time of sampling. Algae and phytoplankton are the common source of chlorophyll-a in ponds. Eutrophication occurs when human activity introduces increased nutrients, which speed up plant growth and eventually choke the pond of all its animal life. In the process, the plants and algae consume greater amounts of oxygen in the water limiting the amount of necessary oxygen for fish and mollusks. These algal blooms are also aesthetically unpleasing to sight and smell (State of Washington, Department of Ecology). The DWQ indicates that for non-trout waters, chlorophyll-a should not be "greater than 40ug/1 for lakes, reservoirs, and other waters subject to growths of macroscopic or microscopic vegetation." A summary of chlorophyll-a sampling results for each of the six locations at the Adams Pond and the Casey Pond are listed below. Chloro h ll-a ran es from grab sam les u Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 A High 94.9 71.9 64.6 91.3 198 176 dams Pond Low 2.42 6.92 4.49 9.99 12.3 18.5 Avg 36.3 30.2 28.7 30.5 69.8 64.8 C High 553 330 358 286 86.7 30.8 asey Pond Low 10.8 25.2 28.8 28.3 12.3 5.73 Avg 132 121.7 106.5 112.2 30.11 21.70 •-Hverage kavg) At the Casey Pond, 4 of 10 upstream samples (Station 1), 5 of 30 pond samples (Stations 2, 3, and 4), and 19 of 20 downstream samples (Stations 5 and 6) meet state standards. The percentage of chlorophyll-a measurements that met state standards improved when comparing upstream (40%) and downstream (95%) stations. State standards were met at pond stations a only 16% of the time. At Adams Pond, 9 of 10 upstream samples (Station 1), 21 of 30 pond samples (Stations 2, 3, and 4), and 11 of 19 downstream samples (Stations 5 and 6) met state standards. The percentage of chlorophyll-a measurements that met state standards worsened when comparing upstream (90%) and downstream (58%) stations; however, state standards were met a majority of the time at upstream and downstream stations. State standards were met at pond stations (Stations 2, 3, and 4) a majority (70%) of the time. High chlorophyll-a counts can be attributed to resultant nutrient run-off from surrounding land use. For example, pastures and free ranging cattle exists above the Adams Pond. The presence of cattle increases the amount of nutrients in the stream causing increased algal growth and in turn increase chlorophyll-a levels. 7 Based on these sets of data, it cannot be concluded that ponds improve (in the case of the Casey Pond) or worsen (in the case of the Adams Pond) water quality with regards to chlorophyll-a when comparing upstream and downstream stations (Station 1 and Stations 5 and 6). Total Suspended Solids (Total Suspended Residue) Total Suspended Solids (TSS) are solids in water that can be trapped by a filter. TSS can include a wide variety of material, such as silt, decaying plant and animal matter, industrial wastes, and sewage. High concentrations of suspended solids can cause many problems for stream health and aquatic life. High TSS can block light from reaching submerged vegetation. High TSS can also cause an increase in surface water temperature, because the suspended particles absorb heat from sunlight. The decrease in water clarity caused by TSS can affect the ability of fish to see and catch food. High TSS in a water body can often mean higher concentrations of bacteria, nutrients, pesticides, and metals in the water. These pollutants may attach to sediment particles on the land and be carried into water bodies with stormwater. In the water, the pollutants may be released from the sediment or travel farther downstream (Federal Interagency Stream Restoration Working Group). A summary of TSS sampling results for each of the six locations at the Adams Pond and the Casey Pond are listed below. TSS ranges from grab samples u Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 Ad High 8700 37.8 21.7 35.2 7290 7040 ams Pond Low 3.3 6.7 6.3 4.8 54 6 Avg 1383.7 16.2 12.4 13.3 2180 2143.4 C High 13100 111 309 66.7 5300 3360 asey Pond Low 104 8.2 8.2 8.9 97 23 Avg 2579.5 33.4 49.5 31.0 2546.4 801.5 Average (avg) The Adams Pond and Casey Pond impound small first order tributaries. Depths of water in both tributaries never exceeded 0.5 inch. Because of the shallow depth of water in the tributaries and the size of the sample containers, the simple act of pushing the sample bottle into the water caused particles and fines to suspend and collect in the bottle. It is the opinion of CEC that TSS readings are falsely high because of that fact. More accurate TSS readings would be attainable on higher order tributaries with a greater depth. The "Redbook" does not include a description of state water quality standards or acceptable ranges for TSS in lotic or lentic systems; therefore, a conclusion as to whether these measurements would violate a state water quality standard can not be made. Turbidity Turbidity refers to clarity of water in an organic system. The greater the amount of TSS in the water, the murkier it appears and the higher the measured turbidity. The major source of turbidity in most ponds is typically phytoplankton, clays and silts from shoreline erosion, and organic detritus from stream and/or wastewater discharges. 8 High concentrations of particulate matter can modify light penetration, cause shallow ponds to fill in faster, and smother benthic habitats by impacting both organisms and eggs. As particles of silt, clay, and other organic materials settle to the bottom, they can suffocate newly hatched larvae and fill in spaces between rocks which could have been used by aquatic organisms as habitat. Fine particulate matter also can clog or damage sensitive gill structures, decrease an aquatic organisms resistance to disease, prevent proper egg and larval development, and potentially interfere with particle feeding activities. If light penetration is reduced significantly, macrophyte growth may be decreased which would in turn impact the organisms dependent upon them for food and cover. Reduced photosynthesis can also result in a lower daytime release of oxygen into the water. Very high levels of turbidity for a short period of time may not be significant and may even be less of a problem than a lower level that persists longer. (http://lakeaccess.org) The DWQ indicates that for non trout waters, turbidity should not "exceed 50 Nephelometric Turbidity Units (NTU)." A summary of turbidity measurements for each of the six locations at the Adams Pond and the Casey Pond are listed below. Turbidity ranges from grab samples T U). Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 High 160 20 13 12 2800 1900 Adams Low 4.3 4.2 4.8 4.2 5.5 1.5 Pond Avg 42.6 8.3 7.5 7.4 583 350.2 High 1350 16 17 18 1200 375 Casey Low ND 5.9 5 5.2 20 3.6 Pond Avg 316.4 11.1 10.3 12.3 233.5 80.3 TNOn-aectect mmit for tecal turbiuity is t N IU. **To determine averages (avg), 1 NTU was substituted for ND. At the Casey Pond, 7 of 11 upstream samples (Station 1), 33 of 33 pond samples (Stations 2, 3, and 4), and 12 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of turbidity measurements that met state standards worsened when comparing upstream (64%) and downstream (55%) stations; however, state standards were met a majority of the time at upstream and downstream stations. State standards were met at pond stations (Stations 2, 3, and 4) all (100%) of the time. At the Adams Pond, 9 of 11 upstream samples (Station 1), 33 of 33 pond samples (Stations 2, 3, and 4) met state standards, and 12 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of turbidity measurements that met state standards worsened when comparing upstream (82%) and downstream (55%) stations; however, state standards were met a majority of the time at upstream and downstream stations. State standards were met at pond stations (Stations 2, 3, and 4) all (100%) of the time. 9 The Adams Pond and Casey Pond impound small first order tributaries. Depths of water in both tributaries never exceeded 0.5 inch. Because of the shallow depth of water in the tributaries and the size of the sample containers, the simple act of pushing the sample bottle into the water caused particles and fines to suspend and collect in the bottle. It is the opinion of CEC that turbidity readings are falsely high because of that fact. More accurate turbidity readings would be attainable on higher order tributaries with a greater depth. Based on these sets of data and unavoidable sampling error, it cannot be confirmed or denied that ponds have an affect on water quality with regards to turbidity when comparing upstream and downstream stations (Station 1 and Stations 5 and 6); however, state standards were met a majority of the time at all upstream and downstream stations. Fecal Coliform Total coliform bacteria are a collection of relatively harmless microorganisms that live in large numbers in the intestine of warm-blooded and cold-blooded animals and aid in food digestion. Fecal coliform is a specific subgroup of this collection and may be separated from the total colifrom group by their ability to grow at elevated temperatures and are associated only with the fecal material of warm-blooded animals. The presence of fecal coliform bacteria in aquatic environments indicates that the water has been contaminated with the fecal material of man or other animals. Fecal contamination is an indicator that a potential health risk exists for individuals exposed to this water (Kentucky Water Watch). The DWQ indicates that for non trout waters, fecal coliform should not "exceed a geometric mean of 200/100ml (MF count) based upon at least five consecutive samples during any 30 day period, nor exceed 400/100m1 in more than 20 percent of the samples examined during such period." Because the approved plan did not call for samples on consecutive days, CEC determined fecal coliform counts above acceptable levels if values were greater than 200 CFU/100 ml. A summary of fecal coliform sampling results for each of the six locations at the Adams Pond and the Casey Pond are listed below. Fecal Coliform ran es from grab sam les CFU/100 ml). Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 Adams Hi h 6000 600 560 580 6000 6000 Pond Low 136 29 24 9 20 14 Avg 1187.5 113.3 113.9 160.6 1135.5 879.6 Case -High 12000 560 600 600 7400 6000 y Pond Low 84 3 3 4 37 117 Avg 2271.6 71.4 95.9 81.4 2334 981.4 **To determine averages (avg), 1 CFU/100 ml was substituted for ND. 10 At the Casey Pond, 2 of 11 upstream samples (Station 1), 29 of 33 pond samples (Stations 2, 3, and 4), and 3 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of fecal coliform measurements that met state standards worsened when comparing upstream (18%) and downstream (14%) stations. State standards were met at pond stations (Stations 2, 3, and 4) a majority (88%) of the time. At the Adams Pond, 1 of 11 upstream samples (Station 1), 27 of 33 pond samples (Stations 2, 3, and 4), and 10 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of fecal coliform measurements that met state standards improved when comparing upstream (9%) and downstream (45%) stations. State standards were met at pond stations (Stations 2, 3, and 4) a majority (82%) of the time. High fecal coliform counts for the Adams Pond can be attributed to free range cattle upstream of the sampling sites. Based on these sets of data, it cannot be concluded that ponds improve (in the case of the Adams Pond) or worsen (in the case of the Casey Pond) water quality with regards to fecal coliform when comparing upstream and downstream stations (Station 1 and Stations 5 and 6). Water Temperature Temperature is a critical water quality and environmental parameter because it governs the kinds and types of aquatic life in the water body, regulates the maximum dissolved oxygen concentration of the water, and influences the rate of chemical and biological reactions. Organisms within an ecosystem have preferred temperature regimes that change as a function of season, organism age or life stage, and environmental factors. With respect to chemical and biological reactions, the higher the water temperature the higher the rate of chemical and metabolic reactions (Wilkes University Center for Environmental Quality). The DWQ indicates that temperature is "not to exceed 2.8 degrees C (5.04 degrees F) above the natural water temperature and in no case to exceed 29 degrees C (84.2 degrees F) for mountain and upper piedmont waters". A summary of temperature measurement for each of the six locations at the Adams Pond and the Casey Pond are listed below. Temperature ran es based on in-field measurements. Station 1 Stations 2-4 Stations 2-4 Stations 2-4 Stations 2-4 Station 5 Station 6 (0.1m) (0.1m) (0.1-1m) (1.1-2m) (2.1-3m) (0.1m) (0.1m) High 22.85 27.03 27.18 26.55 24.26 17.75 21.7 Adams Low 14.26 18.4 18.29 17.01 14.82 15.4 14.89 Pond Avg 17.2 22.97 22.76 22.14 20.26 16.67 18.6 High 16.31 25.74 24.92 24.73 21.1 17.73 Casey Low 12.82 17.82 17.03 16.41 20.92* 13.71 12.92 Pond Av 14.83 22.75 21.78 21.24 16.24 15.55 vu?y -1 ""IFw 1.V11--U 1V] UIIJ JI 1-1 UOFIIII. ** Average (avg). At the Adams Pond, pond stations (Stations 2, 3, and 4) represent the temperatures present within the body of the pond. Average temperature in the Adams Pond at the surface for the dates recorded is 22.97°C. Average temperature upstream of the impoundment for the dates recorded is 17.20°C. When comparing average upstream temperatures with average in-pond temperatures, this yields a change in temperature of 5.77C. Average downstream (Station 5) water temperature for the dates recorded is 16.67°C; this is 0.53°C cooler than average water temperature upstream of the pond. The Adams Pond does have a cold-water release discharge mechanism. The water temperature does not exceed the maximum (29°C) listed in the water quality standards for Class "C" waters at any stations on any date. Although temperatures at Station 1 and Station 5 do not exceed water quality standards, the change of temperature from Station 1 to Station 5 exceeds the 2.8°C maximum listed for change "above the natural water temperature" on two occasions (7/17/2008 and 9/23/2008); however, temperature changes met state standards the majority (82%) of the time. For this study, CEC considered the water temperature measured at Station 1 to be "natural". At the Casey Pond, pond stations (Stations 2, 3, and 4) represent the temperatures present within the body of the pond. Average temperature in the Casey Pond at the surface for the dates recorded is 22.75°C. Average temperature upstream of the impoundment for the dates recorded is 14.83°C. When comparing average upstream temperatures with average in-pond temperatures, this yields a change in temperature of 7.92°C. Average downstream (Station 5) water temperature for the dates recorded is 16.24°C; this is 1.41'C warmer than average water temperature upstream of the pond. The Casey Pond does not have a cold-water release discharge mechanism. The water temperature does not exceed the maximum (29°C) listed in the water quality standards for Class "C" waters at any stations on any date. Although temperatures at Station 1 and Station 5 do not exceed water quality standards, the change of temperature from Station 1 to Station 5 exceeds the 2.8°C maximum listed for change "above the natural water temperature" on one occasion (5/6/2008); however, temperature changes met state standards the majority (91%) of the time. For this study, CEC considered the water temperature measured at Station 1 to be "natural". Based on these sets of data, it can be concluded that ponds with a cold-water release mechanism (Adams Pond) prevent outfall water temperatures from rising and ponds without a cold-water release mechanism (Casey Pond) can cause outfall water to warm. Conductivity Conductivity is a measurement of the ability of the water to carry an electrical current. Conductivity also estimates the amount of total dissolved salts, or the total amount of dissolved ions in the water. Conductivity is influenced by geology, watershed size, evaporation, bacterial metabolism, and other sources. Other sources include wastewater, urban runoff, agricultural runoff, and atmospheric inputs. Abrupt changes in conductivity may indicate that water or wastes are being diverted into the stream or pond from a new source. A summary of conductivity measurements for each of the six locations at the Adams Pond and the Casey Pond are listed below. 12 Conductivity ran es based on in-field measurements. Station I Stations 2-4 Stations 2-4 Stations 2-4 Stations 2-4 Station 5 Station 6 (0.1m) (0.1m) (0.1-1m) (1.1-2m) (2.1-3m) (0.1m) (0.1m) High 0.137 0.086 0.086 0.085 0.108 0.182 0.144 Adams Low 0.025 0.067 0.069 0.069 0.069 0.088 0.121 Pond Avg 0.116 0.076 0.076 0.074 0.078 0.139 0.132 High 0.133 0.090 0.092 0.186 0.137 0.125 Casey Low 0.002 0.075 0.075 0.075 0.075* 0 0 Pond Avg 0.107 0.084 0.086 0.101 0.096 0.091 -umy one sample conectea for tms station aeptn. General trends are noticeable in the data (Attachment C): conductivity levels are consistent when comparing all stream measurements or all pond measurements. The "Redbook" does not include a description of state water quality standards or acceptable ranges for conductivity in lotic or lentic systems; therefore, a conclusion as to whether these measurements would violate a state water quality standard can not be made. Dissolved Oxygen (DO) DO is the form of oxygen in water that is freely available to aquatic plants and animals. DO is vital to fish and other aquatic life and for the prevention of odors. Oxygen is transferred from the atmosphere into the surface waters at the point of contact where the surface of the water interfaces with air. Once dissolved in water, oxygen diffuses throughout a water body very slowly since distribution depends on the movement of aerated water by turbulence and currents, water flow, and thermal upwelling. DO would be higher at the pond surface because the pond has a larger surface area and area of interface when compared to low gradient or slow moving streams. During the summer months, a process called thermal stratification occurs in many ponds. The water stratifies, or separates, into two layers: a warm surface layer that is relatively rich in DO and a colder bottom layer. The oxygen in the lower layer is gradually used up as organic material, which is washed into the pond when it rains or is discharged from sewage treatment plants, industries, or other sources settles to the bottom and decays. Because of the temperature difference, the two layers of water do not mix. As a result, the oxygen in the lower layer is not replaced. By the end of the summer, oxygen supplies near the bottom can be entirely depleted. Traditionally, the level of DO has been accepted as the single most important indicator of a water body's ability to support desirable aquatic life. The amount of oxygen required varies according to species and the life stage of that species. Usually, DO levels of 5.0 to 6.0 milligram per liter (mg/1) are required for growth and activity. DO levels below 3.0 mg/1 are stressful to most aquatic organisms. When levels fall below 2.0 mg/1 for an extended period of time, most fish will not survive. Oxygen is a particularly sensitive constituent because its availability during different times of day and different times of year is influenced by temperature, other chemicals present in the water, and biological processes. Temperature plays a major role in influencing the amount of DO in water; cold water has the ability to contain more oxygen than warm water (Texas State University; River Systems Institute). 13 The DWQ indicates that for non trout waters, DO should not be "less than a daily average of 5.0 mg/1 with a minimum instantaneous value of not less than 4.0 mg/1". A summary of DO measurements for each of the six locations at the Adams Pond and the Casey Pond are listed below. Dissolved O en range s based on in-field measurements m Station 1 Stations 2-4 Stations 2-4 Stations 2-4 Stations 2-4 Station 5 Station 6 (0.1m) (0.1m) (0.1-1m) (L1-2m) (2.1-3m (0.1m) (0.1m) Ad High 9.13 8.76 8.77 8.44 8.25 8.04 8.21 ams Pond Low 0.9 6.55 6.48 2.52 1.57 0.33 3.75 Avg 7.06 7.35 7.27 6.52 4.92 2.6 6.02 High 8.47 9.6 9.54 9.25 8.23 8.88 Casey Pond Low 0.37 2.55 1.64 0.4 * 6.71 0.8 5.64 Avg 6.19 7.54 6.59 4.28 5.92 6.99 *Only one sample collected for this station depth. At the Casey Pond, 10 of 11 upstream samples (Station 1), 80 of 100 pond samples (Stations 2, 3, and 4), and 21 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of DO measurements that met state standards improved when comparing upstream (91%) and downstream (95%) stations. State standards were met at pond stations (Stations 2, 3, and 4) a majority (80%) of the time. At the Adams Pond, 10 of 11 upstream samples (Station 1), 107 of 114 pond samples (Stations 2, 3, and 4), and 12 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of DO measurements that met state standards worsened when comparing upstream (91%) and downstream (54%) stations. State standards were met at pond stations (Stations 2, 3, and 4) a majority (94%) of the time. The water in the channel downstream of the Adams Pond had very little velocity. Slow moving or stagnant water has less DO than fast moving, flowing water; this may be the cause of decreased DO levels at downstream stations (Stations 5 and 6). Additionally, DO levels decrease when water depths increase, this is a natural occurrence in lakes and ponds; and explains the reason why some pond station do not meet state standards. Based on these sets of data and assuming that stagnant channel water caused decreased DO levels at the Adams Pond downstream stations (Stations 5 and 6), it can be concluded that ponds have a minimal affect on water quality with regards to DO when comparing upstream and downstream stations (Station 1 and Stations 5 and 6). 14 pH Water pH is an indication of the water's acidity measurements on a scale of 1.0 to 14.0, with a pH of 7.0 considered neutral. A range of pH from 6.5 to 8.2 is optimal for most organisms. Generally, an aquatic organism's ability to complete a life cycle greatly diminishes as pH becomes greater than 9.0 or less than 5.0. Rapidly growing algae and submerged aquatic vegetation remove carbon dioxide from the water during photosynthesis. This can result in significant increases in pH levels, which in turn can affect aquatic life indirectly by changing other aspects of the water chemistry. For instance, toxic metals trapped in sediment are released into the water at lower pH levels, and the level of ammonia that fish can tolerate varies tremendously within a small range of pH values. Human activities such as accidental spills, agricultural runoff (pesticides, fertilizers, animal wastes), and sewer overflows may also change pH (Texas State University; River Systems Institute). The DWQ indicates that pH "shall be normal for the waters in the area, which generally shall range between 6.0 and 9.0". A summary of pH measurements for each of the six locations at the Adams Pond and the Casey Pond are listed below. H ranges based on in-field measurements. Station 1 Stations 2-4 Stations 2-4 Stations 2-4 Stations 2-4 Station 5 Station 6 (0.1m) (0.1m) (0.1-1m) (1.1-2m) (2.1-3m (0.1m) (0.1m Ad High 7.84 8.41 8.36 8.16 7.73 6.96 7.33 ams Pond Low 6.81 7.07 7.05 6.92 6.72 6.24 6.69 Avg 7.39 7.69 7.74 7.53 7.25 6.66 6.99 High 7.38 9.54 9.44 8.44 7.6 7.48 Casey Pond Low 6.44 6.63 6.72 6.37 7.38* 6.44 6.85 Avg 6.98 8.07 7.87 6.16 7.11 7.13 -vnry one sampie coneciea for ims station aeptn. ** Average (avg). At the Casey Pond, 11 of 11 upstream samples (Station 1), 93 of 100 pond samples (Stations 2, 3, and 4), and 22 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of pH measurements that met state standards did not change when comparing upstream (100%) and downstream (100%) stations. State standards were met at pond stations (Stations 2, 3, and 4) a majority (93%) of the time. At the Adams Pond, 11 of 11 upstream samples (Station 1), 114 of 114 pond samples (Stations 2, 3, and 4) met state standards, and 22 of 22 downstream samples (Stations 5 and 6) met state standards. The percentage of pH measurements that met state standards did not change when comparing upstream (100%) and downstream (100%) stations. State standards were met at pond stations (Stations 2, 3, and 4) all (100%) of the time. Based on these sets of data, it can be concluded that ponds have a minimal affect on water quality with regards to pH when comparing upstream and downstream stations (Station 1 and Stations 5 and 6). 15 Summary and Recommendations It is evident from the data collected that characteristics of water change within a pond setting; however, if cannot be assumed that these changes constitute a decrease in water quality that would be a violation of state water quality standards. How this change effects downstream water quality depends on many factors including in-pond structures (i.e. cold-water release discharge mechanism, aeration system) and landscape orientation. CEC supports the proposal to construct a cold-water release discharge mechanism on the proposed pond at Traditions. CEC feels that the pond proposed at Traditions will be consistent with or an improvement over similar ponds in the area. The pond proposed at Traditions can be constructed and managed in a way that the water quality of the stream which it impounds complies with water quality standards set forth by the DWQ for Class "C" waters. The Traditions requests that the DWQ consider all additional information and additional measures provided by the applicant in determining the completeness of all associated environmental reviews. The applicant is demonstrating a serious commitment and has gone above and beyond to improve dam designs and water quality associated with the pond. The Traditions respectfully requests the issuance of the 401 Water Quality Certification for the specific activities proposed within jurisdictional waters. Should DWQ have any questions regarding the matters addressed in this letter please do not hesitate to contact me at (828) 698-9800. Sincerely, Rebekah L. Newton R. Cement Riddle, P.W.S. Project Biologist Principal 16 ,yb Y 800 m a 2400 ft ?= - Approminate Site Location Ammons Mountain Properties, Inc. Pond Study Madison County, North Carolina NOV 1 2 2008 DENR - WATER QUALITY WETLANDS AND STORWNATER BRANCH CLEARWATER Environmental Consultants, Inc. 718 Oakland Street Hendersonville, NC 28791 828-698-9800 Traditions Site Vicinity Map Figure 1 r ?-e I IZ , f }r 11? r?i ly f Attachment A Approved Sampling Plan (dated April 28, 2008) CLEARWATER ENVIRONMENTAL CONSULTANTS, INC. April 28, 2008 Mr. Ian McMillan NC Division of Water Quality 1650 Mail Service Center Raleigh, North Carolina 27699 RE: Ammons Mountain Properties, Inc. Pond Study Madison County, North Carolina Mr. McMillan, C1earWater Environmental Consultants, Inc. (CEC) is submitting the enclosed revised lake monitoring plan "Water Quality Monitoring and Sampling Protocol for Reference Impoundments" that Susan Gale, NCDWQ approved on April 14, 2008 on behalf of Mr. Justus Ammons of Ammons Mountain Properties, Inc (Ammons). Ammons is currently developing a low-density subdivision near Mars Hill in Madison County, North Carolina. As part of the development plan, Ammons will propose a small, on-line pond in the northern portion of the property. Prior to permit application submittal for the pond, Ammons would like to complete the predictability study outlined in the "Predictability Study Protocol for Sampling Reference Impoundments - DRAFT" dated February 28, 2008. Data collection will begin on May 1, 2008. Should you have any questions regarding the attached proposed plan and supplemental information please do not hesitate to contact me at 828-698-9800. A copy of this plan has also been sent to Mr. Kevin Barnett of the Asheville Regional Office. Respectfully, e 9 ?4?X R. Clement Riddle, P.W.S Principal Copy furnished: NC Division of Water Quality, Asheville - Kevin Barnett 718 Oakland Street Hendersonville, North Carolina 28791 Phone: 828-698-9800 Fax: 828-698-9003 www.cwenv.com WATER QUALITY MONITORING AND SAMPLING PROTOCOL FOR REFERENCE IMPOUNDMENTS Prepared for: Ammons Mountain Properties, Inc. 140 Ammons Drive Raleigh, North Carolina 27615 Prepared by: ClearWater Environmental Consultants, Inc. 718 Oakland Street Hendersonville, North Carolina 28791 INTRODUCTION The project applicant, Ammons Mountain Properties, LLC (Ammons), currently owns approximately 400 acres near Mars Hill in Madison County, North Carolina. A vicinity map is included for review (Figure 1). Ammons is proposing the development of a low-density residential subdivision, known as Traditions, with approximately 200 lots, ranging from 1.08 to 4.21 acres. Application has been made to the North Carolina Division of Water Quality (DWQ) and the US Army Corps of Engineers (Corps) for impacts associated with subdivision infrastructure and development. As a part of this development, Ammons would like to construct a small on-line pond (approximately 0.75 acres) on the northern portion of the property. A pond location map is included for review (Figure 2). Impacts associated with pond construction will be applied for upon the conclusion and approval of the proposed predictability study. The proposed study outlined below will be done in accordance with the North Carolina Division of Water Quality, Wetlands and Stormwater Branch's "Predictability Study Protocol for Sampling Reference Impoundments - DRAFT" (Protocol) dated February 28, 2008. METHODOLOGY Ammons and Clearwater Environmental Consultants, Inc. (CEC) developed this plan for monitoring the water quality of two existing ponds meeting site selection requirements set forth in the Protocol. The reference ponds shall: • be located with the same 8-digit hydrologic unit code (HUC); • be located within the same Level IV ecoregion; • have a comparable design; • be located in an area of similar land use and comparable vegetated buffer; • have comparable character; • be impounded on the same or similar stream order; • have a similar drainage area; and • have a similar retention time. The two reference ponds, labeled as Adams Pond and Casey Pond, are indicated on the pond location map, which is included for review (Figure 2). The following table summarizes the characteristics of the proposed pond and reference ponds. Proposed Pond Adams Pond Robinson Pond HUC 06010105 06010105 0 05 Ecoregion Southern Crystalline Ridges and Mountains Southern Crystalline Ridges and Mountains fo Southrystalline Ridges untains Design Bottom Release To be determined To be determined Land Use Residential Forested/Residential Forested Character 0.75 acres surface area < 2 acres surface area < 1 acres surface area Stream Order First First First Drainage Area 45 acres 130 acres 25 acres Retention Time unknown unknown unknown Sampling as outlined in the Protocol will begin May 1, 2008 at the two reference sites. At each impoundment, six sampling stations have been identified. During the first sample, latitude and longitude of each station will be taken for use with topographic maps or GIS data. A summary of the general locations of the sampling stations is as follows: • Station 1 will be located upstream of the impoundment in the flowing (lotic) stream reach; • Stations 2, 3, and 4 will be evenly spaced across the centerline of the reference impoundment (lentic); • Station 5 will be located downstream and within 200 linear feet of the impoundment outfall in the flowing (lotic) stream reach; and • Station 6 will be located downstream and between 200 and 500 linear feet of the impoundment outfall in the flowing (lotic) stream reach. SAMPLING Six water quality sampling stations will be established at the two reference ponds as described above. Water samples will be taken every other week during the growing season from May 1 through September 30, yielding 11 sample sets. Samples are divided into lotic samples which include the samples and measurements taken at Stations 1, 5, and 6; and lentic samples which include samples and measurements taken at Stations 2, 3, and 4. Field measurements and grab sample results will be recorded on data sheets taken from the DWQ's "Intensive Survey Unit Standard Operating Procedures". The type of sample or measurement taken (field or grab) and parameters measured are outlined below. • Lotic Samples (Stations 1, 5, and 6) o Field Measurements (taken 0.1m below the surface) • temperature • dissolved oxygen (% and mg/1) ¦ pH • specific conductance o Grab Samples (taken 0.1m below the surface at/near the thalweg) • nutrients (total phosphorous, total Kjeldahl nitrogen, ammonia [NH3], nitrate + nitrite [N02+NO31, chlorophyll-a) ¦ total suspended residue ¦ turbidity • fecal coliform • Lentic Samples (Stations 3, 4, and 5) o Field Measurements (taken 0.lin below the surface and at lm intervals to the lake bottom) ¦ temperature • dissolved oxygen (% and mg/1) ¦ pH • specific conductance o Field Measurement (1 measurement reported at each sample location) Secchi depth transparency - reported value as the average of two measurements o Grab Samples (taken 0.1m below the surface) ¦ fecal coliform o Grab Samples Using a LabLine (taken as spatial composites of the photic zone, defined as twice the Secchi depth) • nutrients (total phosphorous, total Kjeldahl nitrogen, ammonia [NHA nitrate + nitrite [N02+NO3), chlorophyll-a) • total suspended residue • turbidity EQUIPMENT The in situ field measurements (temperature, dissolved oxygen (% and mg/1), pH, and specific conductance) will be taken using a Hydrolab Quanta. A Secchi disk will be used to measure the water transparency at the three lentic stations across the centerline of the impoundment. All data conforms to the "Standard Method for the Examination of Water and Wastewater" and EPA methods. In addition, Onset Tidbit temperature data loggers will be installed at both reference pond locations, upstream and downstream of each impoundment, to monitor water temperatures every two hours. These data loggers will provide precise temperature ranges and can be easily downloaded in the field. REPORTING Upon completion of the water quality study, CEC on behalf of Ammons will provide the DWQ with an electronic copy and hard copy of an interpretive report summarizing all results and findings. I 0 S00 m 2400 ft -pro-minat?e Site Location = - A-1-1 ?Up Nov 12 2008 r,,g4k -'jqAt'ER QUAUIi ' Wl=TLANDS \N() STORWi ATERBWNW CLEARWATER Ammons Mountain Properties, Inc. Environmental Consultants, Inc. 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I I J I _ 1 r 1 i 1 - f li(l - r tl . %V 1 -v- I I f ti lff ? 1i f t ! , 60W r I `''? - 1? i I l y;m Ammons Mountain Properties, Inc. CLEARWATER USGS Topographic Map Pond Study Environmental Consultants, Inc. Barnardsville Quad Madison County, North Carolina 718 Oakland Street Proposed Pond Location Hendersonville, NC 28791 Figure 2 828-698-9800 Naz m CL a :3 Ln N 1, e. Naz m CL a :3 Ln N 1, Attachment B Preliminary Plan Approval (dated April 14, 2008) Page 1 of 2 From: clement riddle [clement@cwenv.com] Sent: Wednesday, April 16, 2008 4:37 PM To: 'Anna Salzberg' Subject: FW: Traditions- Madison County - Proposed pond study lakes Please print and at to the Traditions plan/file Clearwater Environmental Consultants, Inc. 718 Oakland Street Hendersonville, NC 28791 828-698-9800 828-698-9003 FAX clement _,cwenv.com www.cwenv.com The information in this email is confidential and may be legally privileged. It is intended solely for the addressee (s). Disclosure to other parties is prohibited. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. From: Susan Gale [mailto:Susan.Gale@ncmail.net] Sent: Monday, April 14, 2008 5:33 PM To: clement riddle Subject: Re: Traditions- Madison County - Proposed pond study lakes Clement-- Those two ponds look acceptable for the study to support the Traditions project. Let me know if you have any further questions. Susan clement riddle wrote: Susan, Thank you for speaking with me this morning about both projects. Attached are maps showing 2 ponds regarding the Traditions study. The Adams pond is in an agriculture/pasture, actively grazed setting and is approximately 2 acres. The Casey pond is about % acre and is in a forested area with logging roads. The proposed pond location is also visible on the aerial map. The proposed pond is approximately 0.78 acres. There are approximately 20 lots that are in the same watershed as the proposed pond average lot size is 2.0 acres. Please review these and let me know if these will be acccceptable. Clement Clearwater Environmental Consultants, Inc. 718 Oakland Street Hendersonville, NC 28791 828-698-9800 828-698-9003 FAX clement@cwenv.com file://\\server2008\data\Company Shared\Projects\511- 400 acres Traditions Mercer\511 ... 10/30/2008 Page 2 of 2 www.cwen.v.com The information in this email is confidential and may be legally privileged. It is intended solely for the addressee (s). Disclosure to other parties is prohibited. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. file://\\server2008\data\Company Shared\Projects\511- 400 acres Traditions Mercer\511 ... 10/30/2008 Attachment C Sample Data 1919weie alels spaeoxe anleA - i 999 L £'£9 2L 68'4L L'0 LL'9 66'4 z9 9£L'0 Z4 LL L'0 90OZ/£Z/6 699 681 l46 9El'0 49'81 L'0 44'9 4£'0 9'E 4SL0 69L L'0 90OZ/LL/6 wegS LL ZO'L 999 L9 SEL'0 L61L L'0 weSb LL 969 94'Z 8Z L4L0 LOLL L'0 800Z/BZ/9 96'9 Z9"9 6'9L 9£L'0 L0'8L L'0 LL 9 L'0 4'L L4L 0 Le 9L L'0 LOOM, L/9 LO 9L'£ 9Z 44l'0 L6'6L L'0 £4'9 9L'O Z'9 64L'0 89'91 L'0 90OZ/OE/L Ludo L £L E8'9 96'9 L Z£L'0 ££'lZ L'O wdOZEI 4Z'9 L4'0 L'S 94L 0 49'9L L'0 90OZ'IL LIL EB 9 LL t, 1'94 9ZL'O 8'9L L'0 Z9'9 E 9 ZL 90L 0 9L LL L'0 80OZ/£/L ZL'9 L6'£ 6 £4 9ZL 0 L£'9L l'0 999 40'9 4'06 8800 ZO LL L'0 80OZ/6LP9 we££AL EE'L 99'9 4'99 LEL 0 Z4'8L L 0 weSZAL 69 ££'0 5£ ZSL'0 1,6'9L L'0 800Z/9/9 4Z'L LE'9 88L EZL'0 L'LZ l'0 699 9L'L 6ZL 9410 t, 9L L'0 90OZ/OZ/S Cl LZ 8 9'66 K 0 99'0Z L'0 £L'9 So'E L EE LE L'0 Z'9L L'0 80OZ/9/9 I/ w % 1/5 w % sluawwo0 Hd u96 (x0 Panloss!(] A1!n!lonpuoO OO emlejadwal (w) H1d30 Sluawwo0 Hd u96Rx0 penloss!(] Al!nllonpuo0 Oa ainlejadwal (w) H1d30 9 u001"s 0110I 4 uO9s3S OIlOI ale(] 669 44'9 E bL 9900 9481 4L Z6'9 69'E L E4 490'0 L4 9L 8' L w60=(]S 9L 9L'9 9L 9800 99L L w60=0S 9L LS'9 E'SL 9900 648L L LO L 90'L 4'Z8 980'0 ZL 6L L 0 9L'L EZ'L E 48 9900 99'9L l'0 90OZ/£Z/6 9Z L 90'4 6 SLO 0 4Z Z Z L4 L £'9 L8 9LO'0 90'42 Z Z £S'L 44'9 648 LLO0 L4Z Z 91 90'L EL6 9L0'0 ZL'4Z Z WL L=OS 99L SZ'L £'£6 9LO'O Z4Z L WL L=OS 991 40L Z L6 9LO0 6L VZ L 99'L Z L 6'£6 9L0'0 94'4Z L'0 991 L L 9Z 9LO 0 4£ 4Z L'0 90OZ/L N6 wdoE:ZL ZL L 9Z'4 L'4S SLO 0 S0 £Z Z wdOZZL 91 9L 4 Z 09 9L0'0 40'EZ Z wL=(]S E9 L L9'9 Z'L9 SLO 0 LL EZ L w0'L=(]S 8L L LL L 1, Z6 SLO'0 L EZ L 1,6 L SZ'L Z'£6 SLO O 49 £Z L 0 L81 Z£ L L'96 SLO 0 6L CZ L 0 9OOZ/9Z/9 ZZ 9 LZ'L S'46 6LO 0 4L 4Z 6 L ZE'8 £S L 1, L6 6LO 0 L6 EZ 6' L w60=0S EE'9 LS'L 696 6LO0 9L 4Z l w6'0=OS £4'8 99 L 4'L6 6LO'0 SL 4Z l 4'9 LS'L E 96 6L00 Z 4Z L'0 L4'8 LL'L 966 6LO 0 bl'4Z L 0 90OZ/4L/9 4Z'9 L4L L WL LLO'0 99 9z L L4'L 6Z'9 169 9LO0 96'9Z Z wL' L=(]S 9£ 9 L9 L 8ZO L LLO 0 99 9z L w9 L=OS 668 L9'L 9 Vol, LLO 0 69 9Z L 602 94 L L ZO L 9LO 0 ZL 9Z L 0 ZE 9 L91 9 EOL 9LO 0 L9 9Z 1'0 8002/O£/L ZL'9 69'Z 8 L£ ESL 0 L L £Z 9L Z Z£'L L9' L L'ZZ 6LO 0 L4 ZZ E E9'L LL'9 88 4L0'0 £9'4Z Z £61 LEL Z16 SLO'0 E9 4Z Z wSL=OS LZ9 Vol 401 9LO'0 z9 L wS'L=(]S 9Z'8 EZ9 £'80L SLO'0 6L 9Z L w SO4L Z09 L9'L 4'40L 4L0'0 96'9Z l'0 w SSEL ZL8 9£'9 L901 SLO'0 96'9Z L'0 SOOZ/L1/L L6 9 44 9 89 LLO 0 64ZZ 9 ZZ 9£ 9 L 08 LLO 0 99'ZZ Z EZ L ZS 9 Z8 LLO 0 ILL ZZ Z 4 L 89'9 L N LLO'O 9L ZZ L 4E'L 99 Z'£9 LLO 0 SL ZZ L w6 0=0S LCL 4L 9 E'S8 LLO'0 Z6 ZZ L'0 w6 0=0S 9E'L ILL 9 S 48 9LO'0 6L ZZ L 0 90OZ/£/L 90 L 999 4'Z9 9LO 0 ZL'£Z £'Z L6 9 Z8 9 698 SLO'0 LC CZ 6' L 80 L 999 Z 99 SLO'0 E EZ Z 9L L 49'9 99 SLO'0 6t, CZ L ZL'L LL 9 L'99 410 0 84 EZ L w6'O=OS LZ L LL 9 L"L8 SLO 0 8'£Z L'0 w6 0=0S L L L 68'9 S L9 4LO'0 LS CZ L'0 90OZ/6 L/9 41'L 4S'£ L4 9LO0 999L E LL'L L6'E 6£ LLOO 64'8L E 9Z'L 909 9 9L CLO 0 9L zz Z S£'L 9£ 9 98 4LO 0 40'ZZ Z wL' L=OS 4E L Z9'9 L'ES CLO 0 98 £Z L wf L=OS 44 L 84'9 4'£8 4LO'0 L8'£Z L weOS 6 EZ 99'9 999 4LO 0 60 4Z L'0 W81717:6 L4'L 699 l s8 4LO 0 S L'bZ L'0 90OZ/S/9 9£ L 9Z'8 9'E6 ZLO'0 89 Ll. 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