WATER QUALITY STUDY OF BILLINSSLEY CREEK, IDAHO EXECUTIVE SUMMARY The study purpose was to evaluate EPA's proposed trout hatchery permit limits on Billingsley .Creek water quality. The proposed permit effluent limits are technology based. Total suspended solids (TSS), settleable solids, nutrients (nitrogen and.phosphorus), ammonia, and dissolved oxygen were evaluated. The conclusions of the study are summarized below: -, 1. TSS levels resulting from the proposed effluent limits will provide a high level of protection for the biota and comply with Idaho WQS. \ * 2. Settleable solids discharged from the hatcheries are a real concern for BIlHngsley Creek. The potential settleable sol Ids load allowed by the proposed effluent limits is quite high. If these proposed loadings were discharged to Billingsley Creek, it would cause unacceptable Impacts to the stream. However, it 1s unlikely that the actual settleable solids loading would ever be as high as proposed. Settleable solids are well below effluent limits when the TSS meets the effluent limits. The data from the JRB (1984) study indicated that the hatcheries can achieve trace levels of settleable solids in their effluents. Also, the cleaning effluents which contain the higher solids load are only discharged sporadically. But to ensure that the possible loads under the proposed permit are never discharged, the permit limits should be lowered for cleaning effluents and every effort made to minimize sol Ids discharges. RECOMMENDATIONS a. Lower the permit limit for cleaning effluents to 0.5 ml/1. b. Emphasize the Importance of developing operation plans that will minimize the discharge of solids. c. Evaluate the effect of settleable solids on the stream after a year and reopen the permit if necessary. 3. Nitrogen and phosphorus levels 1n BUlingsley Creek appear to be excessive. Plant growth in the stream is excessive and contributes to a significant diurnal oxygen swing. However, the late night D.O. sag is short lived because of the short detention time of water in the stream. Further, D.O. never reached dangerous levels. The lowest D.O. recorded was 5.0 mg/1. The effluents contribute both nutrients to the stream system. However, there is evidence that much of the nitrogen (at least the nitrites and nitrates) and some of the phosphorous may be in the spring water before it enters the trout hatcheci&s- ------- Phosphorus appears to be contributed to the system by the hatchery operations. However, Individual hatchery discharges of phosphorus are at quite low effluent concentrations and may be difficult to remove. RECOMMENDATIONS a. Evaluate the effect of nutrients on the stream after a year and reopen the permit 1f necessary. b. Emphasize the Importance of developing operations plans that minimize the discharge of nutlents. 4. The trout hatcheries appear to have little direct Impact on dissolved oxygen (DO) 1n BllUngsley Creek. They may contribute Indirectly to depressed nighttime DO by discharging nutrients to the stream. At this time there 1s no evidence that the diurnal dissolved oxygen swing has an adverse effect on the stream. As recommended above the permit can be reopened 1f Impacts are detected. The state'has an ongoing study that should document any Impacts. DESCRIPTION OF BILLINGSLEY CREEK Bllllngsley Creek originates at Curren Spring 1n Goodlng County, approximately 3 miles from Hagerman, Idaho. The stream flows just over 7.5 miles northwest to Its confluence with the Snake River. A number of spring fed streams are tributary to BHHngsley Creek. The creek 1s also fed by Irrigation return flows. BUlingsley Creek flows primarily through agricultural lands with row crops, pastures, and confined animal feeding operations. Water is diverted from Billingsley Creek for Irrigation at Curren Ditch near the headwaters, and at numerous locations in the downstream reaches. There are four major trout hatcheries that discharge to Billingsley Creek: Rangen Hatchery, Jones Hatchery, Idaho Springs, and Fisheries Development. Rangen is located at the headwaters and utilizes Billingsley Creek water for all its raceways and ponds. Virtually all the water in the creek immediately below Rangen has passed through the hatchery. During the irrigation season all the water in the creek below Rangen can be diverted for irrigation at Curren Ditch, immediately below the hatchery at river mile 7:0. Jones Hatchery discharges to the creek at river mile 5.7. This hatchery utilizes water from a spring. During the non-irrigation season, flow in the creek roughly doubles at Jones. When water is being diverted at Curren Ditch, nearly all the flow below Jones results from the Jones effluent. The Idaho Springs Hatchery discharges to BilUngsley Creek at River miles 3.9 and 3.8. This hatchery withdraws water from Billingsley Creek for its rearing ponds. It utilizes spring water for its raceways. Idaho Springs was not in operation during, this study. Fisheries Development discharges to the stream at river mile 2.7, and it utilizes spring water. The physical habitat and water quality of Billingsley Creek are both indicative of extensive agricultural and aquacultural use. JRB (1984) found Bi 11-irn.gsM ey Creek water quality to be inferior to comparable spring fed streams primarily as a result of high nutrient levels. JRB also reported - 2 - ------- heavy accumulations of organic material below the trout hatcheries. In addition, they observed extensive macrophyte beds, especially downstream of hatcheries. Overall, JRB concluded that BllUngsley Creek exhibits symptoms of a stressed stream system, attributable to the trout hatcheries, feedlot runoff, and grazing. METHODOLOGY -;. This study evaluated the Impact of the following technology based effluent limits for trout hatcheries on the water quality of BIlHngsley Creek: Raceway discharge: "-. net 30-day average TSS 5.0mg/l " Instantaneous maximum TSS 15.0mg/l * net average dally settleable sol Ids 0.1 rag/1 Cleaning Waste Treatment Pond * dally minimum TSS removal efficiency 85 % * dally maximum TSS 100 mg/1 * dally minimum settleable sol Ids removal efficiency 90% * daily maximum settleable sol Ids 1.0 ml/I Billingsley Creek and the four trout hatchery effluents were sampled in January,-March, April, May, and June. Field data was collected by the Twin Falls office of the Idaho Department of Health and Welfare, Division of Environment (DOE) and EPA's Environmental Services Division (ESD). ESD gauged the stream in March and June and analyzed water samples in the laboratory for BOD5» 10» 15» 20» settleable solids, suspended solids, and nutrients. The ESD BOD data was used for the dissolved oxygen model, but DOE data was used for the rest of the analyses because it was available for all sampling dates. The ESD data was used as a quality assurance check. The following parameters were measured for each station on each sampling date. Temperature PH Biochemical oxygen demand Dissolved oxygen Total residue Volatile residue Non-filterable residue (suspended solids) Total ammonia Kjeldahl nitrogen Nitrite & nitrate Total phosphorus Ortho phosphate Turbidity Conductivity Alkalinity - 3 - ------- The eight stream and seven effluent stations listed below 1n Table 1 were monitored: TABLE 1; BUHngsley Creek Stations River Idaho Number Descriptions Mile STORET No. Bl Above Rangen 9 Curren Spgs 7.8 2060047 B2 Below Rangen 9 Culvert 7.2 2060162 B3 Above Jones @ Bridge 5.8 2060163 B4 200 yards below Jones 5.6 2060164 B5 Above Idaho Springs 4.0 2060165 B5A Below Idaho Springs 3.7 B6 Below Fisheries Development 2.6 2060166 B7 1.50 below Highway 30 0.6 2060046 Fl Rangen Raceway Effluent 7.3 2060174 F1A Rangen Settling Pond Effluent 7.4 2060175 F2 Jones Raceway Effluent 5.7 2060176 F2A Jones Settling Pond Effluent 5.7 2060177 F3 Idaho Springs Raceway Effluent 3.8 2060178 F3A Idaho Springs Rearing Pond Effluent 3.9 2060179 F4 Fisheries Development Settling Pond Eff. 2.7 2060180 Standard methods were used for all analyses. The effects of the trout hatchery effluents on dissolved oxygen were evaluated using the STREAM water quality model developed by Manhattan College. All the data collected for this study are listed In the Appendix to this study. The field data for parameters of primary concern In this study are listed 1n Appendix Tables C and D for the stream stations and Table E for the effluents. Statistical summaries of all the data are presented in Figures 1 and 2 and in Appendix Tables A and B for stream stations and effluents respectively. EFFLUENT QUALITY Effluent quality was generally quite good with only the nutrients being at excessive levels. Figure 1 presents a statistical summary of all of the effluent data. Appendix Table A contains the data used to compile the charts shown in Figure 1. TSS were very low for all the effluents (see Appendix Table A and E). highest recorded value was 9.8 mg/1 from the Fisheries Development settling pond. The mean TSS levels ranged from 3.7 mg/1 at the Jones raceway to 7.9 mg/1 at the Jones settling pond. Only two settleable solids measurements were taken: 0.1 ml/I at the Rangen raceway and 0.1 ml/I at the Jones settling pond. The - 4 - ------- TOTAL AMMONIA TOTAL PHOSPHORUS &> O.1* a.u- 011 JJ. r &»- \ 04- 0.1. - ! a,- aa.. i s N S s V s V ^ 2 J 1 ^ "^ ' f S, s s «l s 1 Lj B H fi DISSOLVED OXYGEN TOTAL SUSPENDED SOUDS u- f I ,0- ' t- t- 7- ' ^ N S a \ 3 4 T 91 ' T t ? « , ' 1 ] 1 t- » 1 7- *" I " 4- 1 » rm s N v s s H i f *» j B I > S s « » ' * :i BIOCHEMICAL OXYGEN DEMAND NITRATES + NITRITES 3- ^^ ^ * * i j~ i . i j t - < [ ! i S3 F_ 5 m r_A 1 r» t <; ^ - 9 fi ^ w rfolicn « > ; S »* \ s V s s s 1 "1 s > ^ > < ( ' f 1 T ^%> >r« < 1 ^ MmJ " u- 14- U- S 1.1 - I 1- * !i; t 1J" I u- " 1J- 1.1 - t - &- O.T (fcrf * i e P g n ^ || ( 14 1 """"" n-R.o^' F2. ~ Jo^fi^ F3 "iclaho FIGURE 1: Fish Hatcliery Effluent Data in. ------- The nutrients, phosphorus, and nitrogen were really quite low in the effluents. Phosphorus ranged from 0-0.49 rag/1. The mean phosphorus levels ranged fro« 0.054 rag/1 at the Idaho Springs Raceway to 0.326 at the Jones settling pond. Mean nitrate/nitrite nitrogen levels ranged from 0.763 at the Fisheries Development settling pond to 1.148 at the Idaho Springs Rearing Pond. Mean total ammonia levels ranged from 0.029 mg/1 at Idaho Springs raceway to 0.322 mg/1 at the Jones raceway. Mean Kjeldahl nitrogen ranged from 0.142 mg/1 at Idaho Springs raceway to 0.842 mg/1 at Jones settling pond. Oxygen levels were generally fairly high in the effluents. The lowest recorded dissolved oxygen level was 7.1 at the Rangen raceway and the Jones settling pond. Five day biochemical oxygen demand was generally very low. The maximum recorded was 8.7 mg/1 at the Jones settling pond. The mean BOD at Jones settling pond was only 5.1 mg/1. The highest mean at the other dischargers was 2.8 mg/1 at the Jones raceway. INSTREAM WATER QUALITY The instream water quality of Billingsley Creek was generally quite good during the study period (Appendix Tables C and D). Only the nutrients, nitrogen, and phosphorus were at concentrations that could cause water quality problems. A statistical summary of this data is presented in Figure 2 and Appendix Table B. Instream TSS ranged from a high of 24.0 mg/1 at Station 87 in January to a low of less than 1.0 mg/1 at every station except Station 5 in June (Appendix'Table B). Station 5 had 1.0 mg/1 in June. The data in Table D indicates that TSS generally decreased at each station with season and with flow. Further, TSS decreased below the hatcheries on each sampling date (see Appendix Figures 1-5). Instream nutrient levels were fairly high and constant throughout the study. Total phosphorus ranged from 0 to 0.2 mg/1. Nitrate/nitrites ranged from 0.72 to 9.2 mg/1. Total, ammonia ranged from .004 to .729 mg/1. Kjeldahl nitrogen ranged from 0.1 to 0.8 mg/1. It is important to note from Appendix Table C that the headwater station (Bl) consistently had lower levels of phosphorus, ammonia, and Kjeldahl nitrogen than the rest of the stream, but its nitrate/nitrite levels were in the same range as the rest of the stream. Un-ionized ammonia was very low at every station on every sampling date. The highest readings were on May 22 at Stations 3 and 4; 0.075 and 0.019 mg/1 respectively. The Station 3 level was apparently the result of high pH (9.0) rather than an influx of ammonia because the total ammonia level was only 0.350 mg/1. This is very similar to Station B2 when the total ammonia was 0.337 but the un-ionized was only 0.0071 mg/1 The highest un-ionized ammonia level at the other stations was 0.0097 mg/1 at Station 86. - 5 - ------- TOTAL AMMONIA TOTAL PHOSPHORUS OJ4- 0.1* a.i« 0.14- an- 0,1 - 9J- OJ». OM- 0*4- taj. OJ. , «.1«- 0.14- 011- DISSOLVED OXYGEN TOTAL SUSPENDED SOUDS 10 §- T- ww I s 4- UN-IONIZED AMMONIA NITRATES -I- NITRITES 0.033 OJ13- oujia- I 0414- O.OO4- 0.002- o FIGURE 2: Ambient Water Quality Data ------- Dissolved oxygen was fairly high throughout the study (Appendix Figures 1-5). The lowest value recorded was 6.2 at Station B2 below the Rangen hatchery on March 7, 1984. Dissolved oxygen was supersaturated 1n much of the stream during May and June. At Station B3 oxygen levels of 19.5 mg/1 1n May and 14.2 rag/1 1n June were recorded. At B5 the May concentration was 14.8 and the June level was 12.6, and at B5A the May and June concentrations were 12.0 and 11.2 mg/1 respectively. STUDY RESULTS The results of this study are summarized 1n three sections. First, we compare the actual trout hatchery effluents to the EPA established effluent limits for such hatcheries. Second, we summarize the Impact of the trout hatchery effluent on Instream water quality. Following these summaries, we present a detailed pollutant-by-pollutant analysis of the Impact of each pollutant on BllUngsley Creek. Graphs are used whenever possible fn presenting data. All data collected for this study 1s compiled In the Appendix. TSS It Is quite evident that the hatchery effluents had little Impact on Instream TSS during this study. Appendix Figures 1-5 show that TSS actually decreased below the hatchery effluents (except below Rangen where the stream Is entirely effluent). The greatest effect of the trout hatcheries on Billingsley Creek TSS levels will occur at the lowest flows. To analyze the worst case Impact of the proposed effluent limits on Billingsley Creek we assumed all the flow in the Creek was effluent from the trout hatcheries. Further, we assumed that all effluent discharge was at the Instantaneous maximum permit levels at the same time. The effluent flows used 1n the analysis are the mean flows given in Appendix Table A. Table 2 lists the worst case conditions simulated and the expected Billingsley Creek TSS concentrations below each hatchery. The highest TSS levels in the Creek during this hypothetical worst case would be below Rangen (27.6 mg/1). TABLE 2: Worst Case Analysis of the Impact '* of the Proposed Effluent Limits on Billingsley Creek TSS Levels: Effluent Effluent Billingsley Creek Row TSS TSS (cfs) (mg/1) (mg/1) Rangen Settling Pond 4.8 100.0 100.0* Rangen Raceway 27.6 15.0 27.6 Jones Settling Pond 1.9 100.0 Jones Raceway 44.6 15.0 22.6 Idaho Springs Rearing Pond 30.8 15.0 20.4 Idaho Springs Raceway 52.0 15.0 18.6 Fisheries Development Settling Pond 10.9 15.0 18.4 - 6 - ------- *Th1s high level will be totally on Rangen property and will occur over a stream reach roughly 150 meters long. Even this worst case for TSS should have little or no Impact on fish and aquatic life. According to "Water Quality Criteria," (EPA, 1972) a maximum suspended sediment concentration of 25.0 rag/1 provides a high level of protection for aquatic communities while a maximum of 80.0 mg/1 provides a moderate level of protection. So even this worst case will provide a relatively high level of protection. The Idaho water quality standards require that point sources not Increase the turbidity of receiving waters by more than 5 NTU over background If background Is less than 50 MTU. We do not know what turbidity would result from the highest predicted TSS of 27.6 mg/1. However, It can be estimated roughly. Table 3 below tabulates the highest Instreara and effluent TSS levels and their corresponding turbidities. \ ' TABLE 3: Turbidity vs. TSS 1n BflUngsley Creek and the Trout Hatchery Effluents TSS (mg/1) Turbidity (NTU) BIlHngsley Creek 24.0 22.0 21.0 20.0 16.0 Trout Hatcheries 10.8 9.8 9.6 9.0 9.0 4.6 2.0 2.7 2.7 1.2 1.4 0.8 1.3 1.7 1.2 Based on the data In Table 3, It appears that the turbidity resulting from 27.6 mg/1 TSS will be about, or less than, 5.0 NTU. In light of the fact that 27.6 mg/1 is a fairly conservative worst case estimate of the impact of the hatcheries on Billingsley Creek, we feel the permit Itnrits will not violate Idaho water quality standards or adversely impact the aquatic community of Billingsley Creek. Settleable Solids: Composite samples were analyzed for settlcable solids from the Rangen raceway and Jones settling pond 1n March. Both samples were 0.1 ml/1. JRB (1984) collected extensive data on settleable solids at the Jones and Rangen Raceways. In 39 samples from Rangen, the TSS ranged from 14 mg/1 to less than 0.1 and the settleable solids were all traces (less than O.T). These data demonstrate that the hatcheries will comply with the 0.1 ml/I raceway effluent limit for settleable solids if they comply with the suspended solids limit. In fact, these effluent limits will result in virtually no discharge of settleable solids from raceways. - 7 - ------- Appendix Table F lists all of the TSS and settleable solids data from JRB, 1984 for trout hatchery cleaning effluents. In nine of the samples the TSS exceeded the 100 rag/1 effluent limits. But of those nine, only two exceeded the 1 ml/I settleable sol Ids limit. In six of those nine, only "trace" settleable solids (less than 0.1 ml/1) were detectable. The data In Table F, considered as a whole, Indicate that settleable solids will generally be considerably lower than the effluent limits when TSS 1s equal to the effluent limits. However, the very limited data from Rangen 1n Table 9 indicates that effluent settleable solids content might vary proportionally with TSS so that 100 mg/1 TSS would result 1n 1.0 ml/I settleable solids. Self monitoring data from Rangen (Appendix Table G) does not totally support this relationship. It shows TSS levels of 14.0, 38.0, 42.8, and 29.8 with corresponding settleable solids all less than 0.1 ml/I \ v * So, the Rangen Hatchery probably follows the trend apparent in Appendix Table F, i.e., settleable solids are less than the effluent limit of 1.0 ml/I when TSS equals the effluent limit of 100 mg/1. Since TSS is the limiting parameter 1n the effluent limit, it appears that the proposed limits will result 1n very little discharge of settleable solIds to Billingsley Creek. However, since settleable sol Ids can significantly impact the stream ecosystem, we simulated a hypothetical worst case in.which the hatcheries all discharged their maximum allowed limits of 0.1 ml/1 from raceway and 1.0 ml/1 from settling ponds. We used the mean effluent flows listed in Appendix Table A. Table 4 gives the volume of settleable solids that would be discharged in a day from each of the effluents 1n the worst case situation. The average settling velocity of the suspended sediments from Jones Hatchery 1s 1.57 cm/sec (JRB, 1984). Billingsley Creek is generally from one to four feet deep below the hatcheries so at a settling velocity of 1.57 cm/sec the material will settle to the bottom between 30-78 seconds after discharge. At current velocities of-1-2 ft/sec, the material should settle out between 30 and 156 feet from the outfalls. After that, it would probably be slowly distributed downstream as bed load. The volumes listed in Table 4 are clearly unacceptable. They, would result in large areas of stream being covered by the fish farm residues. Though these levels are possible under the proposed effluent limits, they are highly unlikely for three reasons. First, TSS is the limiting parameter in the effluent limitation. If the TSS limits are met, settleable solids will be quite low; probably present only as traces. Second, the effluent data collected for this study and the JRB data show that the settling pond discharges almost always discharge concentrations of TSS and settleable solids much less than the permit levels. Third, the higher concentrations of TSS and settleable solids in the settling pond effluents will only occur during cleaning operations; usually a fraction of the day. - 8 - ------- TABLE 4 Settleable Settleable Solids Solids cfs ml/I m3 /day '"-. Rangen Settling Pond 4.8 1.0 11.7 Rangen Raceway 27.6 .1 6.7 Jones Settling Pond 1.9 1.0 4.6 Jones Raceway 44.6 1 10.8 Idaho Springs Rearing Pond. \ 30.8 .1 7.4 Idaho Springs Raceway 52.0 .1 12.6 Fisheries Development 10.9 .1 2.6 It 1s much more likely that virtually no settleable sol Ids will be discharged from the raceways. This conclusion 1s based on the JRB data discussed above showing that settleable solids from the Jones and Rangen raceways was always less than 0.1 ml/I even though TSS was as high as 24 mg/1. Further, the settling pond effluent loads should be much less than tabulated in Table 4. According to JRB, at Rangen, the large raceways are cleaned every 30-6~0 days. The small raceways are cleaned everyday, but cleaning effluents flow from each only 3-4 minutes. Also 0.5 ml A is a more likely, yet conservative estimate of the level of settleable solids discharged from Rangen. Using that concentration and two hours cleaning time each day, the daily load from Rangen is .48M3 or 17.2 feet3. The JRB report states that the. Jones settling pond does not, as a rule, discharge to the creek. Therefore, much of the time it will deliver no load to Billingsley Creek. The daily load of settleable solids possible under the proposed effluent limits is too great. However, the hatcheries are capable of maintaining their settleable solids effluent concentrations much lower than the permit levels. Most of the time settleable solids are less than quantifiable detection limits in both the raceway and settling pond effluents. These "traces" of settleable solids do not adversely affect Billingsley Creek. This excellent performance can be maintained at the hatcheries if an emphasis is placed on managing the solids load. Therefore, EPA and IDHW should work with the hatcheries to develop management plans and 0 4 M plans that will facilitate maximum removal of solids from the effluent. Nutrients-Nitrogen and Phosphorus: Appendix Table H lists total nitrogen, total phosphorus, and the nitrogen/phosphorus ratios at Billingsley Creek. Generally, both nutrients are somewhat excessive, potentially leading to nuisance growth of aquatic vegetation. This is confirmed by observations that Billingsley Creek was characterized by dense growth of macrophytes and periphyton in 1983 (JRB, 1984) and 1984 (Mike McMasters, Personal Communication). Overall, phosphorus probably contributes more to the vegetation problems than nitrogen. Total phosphorus concentrations greater than .02 mg/1 can - 9 - ------- lead to eutrophlc conditions In lakes. Phosphorus was consistently near 1 mg/1 fn BHHngsley Creek. The nitrogen/phosphorus ratio can be used to estimate which nutrient 1s limiting plant growth. A ratio greater than 15 Indicates that phosphorus 1s limiting algae growth. A ratio lower than 15 Indicates nitrogen Is limiting. In BIlHngsley Creek the ratio 1s close to 15 most of the time (Appendix Table H). This Indicates that nitrogen as well as phosphorus 1s excessive and that reductions in either nutrient should help lessen plan growth In the stream, especially perfphyton. Many of the rooted macrophytes can obtain nutrients from the substrate as well as the water column. Decreases 1n macrophyte growth will occur slowly. Table E shows that the hatcheries contribute nitrogen and phosphorus to B1 llingsley Creek. JRB (1984) and McMasters (Personal Communication) both found.vegetation to be denser below the hatcheries than elsewhere, Indicating that the hatcheries contribute to plant growth. If at all possible, nutrient loads, especially phosphorus from the hatcheries, should be reduced. Total phosphorus In the hatchery effluents ranged up to 0.49 mg/1, high enough to be excessive In thfs effluent dominated stream but low enough to be difficult to remove. Nitrogen, especially nitrates and nitrites, are high 1n the effluents. However, nitrates and nitrites may be fairly high 1n the Influents to the hatcheries as well. Station B1 Is at the headwaters of BIlHngsley Creek and may be indicative of the quality of spring water in the valley. Table I compares nutrients levels at Station B1 and the effluents. Total phosphorus, ammonia, and Kjeldahl nitrogen are all higher in the effluent than at B1, but nitrite/nitrate ts about the same in Bl as in the effluents. So while the hatcheries appear to contribute phosphorus, ammonia, and Kjeldahl nitrogen to the stream, they may not contribute significant amounts of nitrate which is the most readily used nutrient form of nitrogen. High nutrient levels contribute to excessive plant growth in Billingsley Creek. The trout hatcheries contribute nutrients so effort should be made to decrease effluent nutrient levels to the extent possible. However there is no evidence of serious degredation from the plant growth. Though the plants cause depressions in dissolved oxygen levels at night, the lowest recorded levels (5.0 mg/1) are not dangerous to the aquatic community. Further, the hatchery effluent phosphorus concentrations are extremely low. Therefore, EPA and IDHW should work closely with the hatcheries to develop management and 0 & M plans that minimize the input of nutrients to their water supply and maximize the removal of nutrients before discharging the water to Billingsley Creek. UN-IONIZED AMMONIA Un-ionized ammonia (NH3) data from Billingsley Creek are listed in Appendix Tables D and E. Un-ionized ammonia was extremely low except on May 22, 1984, at Station 3 when it reached 0.075 mg/1 and May 22, 1984, at station 4 when it reach 0.0194 mg/1. The state water quality standard for NH3 is 0.02 mg/1 as a 30-day mean. It appears from the data in Appendix Table D that Billingsley Creek complies with that standard. - 10 - ------- EPA has recently published draft criteria for NH3. The criteria Include a 30-day average value and a never to be exceeded value that varies as a function of pH and temperature. Appendix Table J lists the criteria for BIlHngsley Creek using ambient pH and temperature data. Note that the BUllngsley Creek grab samples violated the 30-day average criterion only once, on May 22, at station 83. They never violated the maximum criterion. At their current discharge rates, the trout hatcheries are not causing NH3 water quality standards violations. Since the hatcheries discharged right at or slightly less than their TSS limits, no NH3 problems are expected from the proposed effluent limits. DISSOLVED OXYGEN Appendix Figures 1-5 show the dissolved oxygen (DO) concentrations measured in BIlHngsley Creek. 00 was fairly high 1n the stream throughout the study, with observed values never violating the state water quality standard of 6.0 mg/1. Starting 1n April much of the stream was supersaturated with DO when sampled. This is the result of dense vegetation producing DO during the day. DO saturation during the day is usually accompanied by depression of DO levels at night. IDHW monitored DO through a 24-hour period in July (McMasters, Personal Communication). On that day DO fluctuated approximately 9 mg/1 from the highest daytime measurement to the lowest nighttime measurement. The lowest DO recorded that day was 5.0 mg/1. The high at that station was 13.2 mg/1. Carbonaceous biochemical Oxygen demand (CBOD) ranged from 0.4-3.7 mg/1 in the creek and 0.2-8.7 mg/1 1n the effluents. These are very low levels of BOD and would not be expected to affect DO concentrations in shallow fast moving streams like Billingsley Creek. This is confirmed by the DO data discussed above. In order to confirm that BOD from the hatcheries have little or no effect on stream DO we utilized the stream water quality model to simulate DO in the stream. We checked model accuracy by simulating DO on the March and June sampling dates. Appendix Figures 6 and 7 compare simulated DO to actually measured DO. The model simulated actual DO levels quite well. The underestimates in June are a result of plant caused supersaturation discussed above. The model does not simulate the effects of photosynthesis on DO. The model predicted average DO in the absence of photosynthesis. Photosynthesis can be accounted for by superimposing the measured diurnal DO swing (9.0 mg/1) on the model results. This is done by adding 4.5 mg/1 to the DO predictions and subtracting 4.5 from the prediction. The result is a daily DO swing from 4.5 mg/1 to 13.5 mg/1 in the stream between Jones and Idaho Springs, very close to the measured swing. The model appears to be predicting instream time averaged DO fairly well and can be used to predict DO in the worst case. - 11 - ------- The worst case situation simulated assumed all the flow in the stream to be effluent fro» the hatcheries. The effluent flow rate for each hatchery was set at half the June flow to reduce aeration rates and increase residence t1«e 1n the stream. The CBOO for all the dischargers was set at the highest level recorded for any effluent during the study (9.0 mg/1). Likewise, dissolved oxygen was set at the lowest level recorded for any discharger (7.1 rag/1). Appendix Figure 8 Illustrates the results of this worst case analysis. DO will not violate the water quality standard of 6.0 mg/1 as a result of BOD and DO levels ,1n the effluents. However, very low DO levels could result from plant respiration if there 1s a 9.0 mg/1 dally swing in DO as discussed above. Utilizing the 9.0 mg/1 dally swing, the DO below Jones could go down to 3.0 mg/1 under these worse case conditions. This low DO would last for a,short time because of the short detention time of water In the stream. It Is Important to note that average instream DO is never lower than effluent DO in the worst case situation. This shows that the low DO 1s a result of the effluent level of 7.1 mg/1 that was assumed. Reference back to Appendix Table E shows that most of the time effluent DO was higher than 7.1. Therefore, we feel that the worst case illustrated in Figure 8 is a very conservative worst case. 04284 - 12 - ------- TABLE A? STATISTICAL SUPIARY FOR 8*tUNGSLEY CREEK*** TPOUT HATCHERY EFFLUENT DATA CFLOW - CFSJ OTHER DATA - KG/L) STATION F1A RANGEN SETTLING PQND PEAN STO OEY STO ERR HINIf U1 PAXIPUM RANGE LSEO CMITTS-) FLOW 4.8 1.7 .7 3.0 7.0 4.0 5 0 D.O. B. 8.0 .4 .2 7.5, * 8.3 .8 5 0 O.D. AKMCNIA 2.6 1.3 .6 1.1 4.3 3.2 5 0 .297 .175 .078 .179 .594 .415 5 0 TSS 6.0 2.8 1.2 2.2 9.6 7.4 5 0 TP .116 .030 .014 .100 .170 .07C 5 0 NITRA .876 .073 .033 .818 .970 .152 5 0 TKN .616 .135 .06G .480 SCO .320 « C STATION Fl RANGEN RACEVAY AN fcTO 01V STO ER* MNI»U1 fAXl»U'1 RANGE USED CHITTED FLGH . 27.6 7.9 3.5 21.6 41.0 19.4 5 0 c.o. 7.3 .2 .1 7.1 7.6 .5 5 0 8.0.0. 2.5 .7 .3 1.9 3.7 1.8 5 0 AK.1CNIA .273 .037 .016 .224 .317 .093 5 0 TSS 4.8 2.6 1.2 1.6 7.8 6.2 5 0 TP ICC .014 .006 .080 .120 ..)4C 5 0 MTRA .943 .213 .095 .744 1.260 .516 5 0 TKN .57C .192 OS6 4CO .9CC .5CC 5 0 STJTIQM F2A JCNSS SETTLING PONO PrAN STO OcV STO ERR HINIPU1 PAXI*in RANG? USED C-1 IT TED FLOW 1.9 1.4 .6 .0 4.C 4.C C ^ u D.O. B.0.0. Art^CNIA 7.9 .6 .3 7.1 8.5 1.4 5 ^ N0 5.1 2.7 1.2 2.4 8.7 6.3 5 a .299 .109 .049 .138 .404 .266 5 0 TSS 7.9 1.8 .8 4.8 9.0 4.2 5 0 TP .326 .131 .058 .140 .490 .350 5 0' MTRA .888 .054 .024 .323 .97C .147 5 Q TKN .842 .253 .113 4CC 1.01C .610 K w C ------- STATION F2 JONES RACEWAY PEAN STO OSY STO ERR MM* UN PAXIWU1 RANGE USEO OMITTED FLOW 44.6 9.2 4.1 34.0 ' 57.0 23.0 5 0 D.O. 8.4 .6 .3 7.5 9.2 1.7 5 0 8 .0.0. 2.8 .8 .4 2.1 4.1 2.0 5 0 AMMONIA .322 .080 .036 .221 .416 .195 5 0 TSS 3.7 2.5 1.1 1.0 6.8 5.8 5 0 TP .140 .057 .025 .080 .200 .120 5 0 MTRA .944 .111 .050 .843 1.110 .267 5 0 TKN .666 .169 .075 .440 .900 .460 5 STATION F3A IDAHO SPRINGS REARING PQNO PEAN STC OSV STO ERR MNIPU1 KAXIMU1 RANGE USED QHITTSO FLGW 30.8 22.5 11.3 11.3 6C.O 48.7 4 0 ' D.O. 8.O.D. AMMONIA 11.7 1.7 .9 9.9 13.8 3.9 4 0 1.4 .5 .2 .8 2.0 1.2 4 0 .122 .045 .022 .067 .169 .102 4 0 TSS 5.3 1.7 .9 3.6 7.4 3.8 4 0 TP ' .100 ccc ceo IOC .100 .000 4 0 MTRA 1.148 .241 .121 .960 1.500 .540 4 C TKN .450 .058 .029 .400 .50C ICO 4 C STATION F3 ICAHO SPRINGS RACEWAY PEAN STO OSV STO ERR MNIPU1 *AXI,*in RANGE USED (HITT53- FLOW 42. C 24.1 10.8 .0 6-:.o 6C.O f C D.Q. B.Q.O. AMMONIA 10.5 .6 .3 9.9 11.2 1.3 5 0 1.0 .3 .4 .2 2.0 1.8 5 0 .029 .007 .003 .021 .039 .018 5 0 TSS 5.4 3.0 1.3 1.6 8.6 7.0 5 0 TP .054 .044 C20 .000 .ICC .100 5 0 MTRA .813 .044 .020 .770 .880 .110 5 0 TKN .142 .043 .019 .IOC .2CC ICO 5 C STATION F4 FISHERIES DEVELCPPcNT SETTLING POND MEAN STO 03V STC E<*R .»IM.»U* PAX I- "'.»» RANGE UScO C.IITTr* FLOW 10.9 3.5 1.5 7.2 1?.5 8.3 s U D.O. B.C.O. AMMONIA 9.4 .9 .4 *.5 i; .a 2.3 5 0 3.4 1.9 .8 1.5 6.1 4.t 5 0 .273 .190 .08? .066 .434 .363 5 0 TSS 5.8 2.8 1.2 2.8 9.8 7.0 5 C TP .160 .062 .028 .C6C .20CT .140' 5 0 NITRA .763 .130 .058 .5<3fe .95C .354 5 0 TKN .778 .273 .122 .31G l.OCC .6SO 5 0 ------- STATISTICAL SUMMARY OF SILLINGSLEY CREEK FILC DATA** ( ALL DATA - MG/L) STATION 81 A30VE RANGEN TROUT HATCHERY PEAN STO OEV STO ERR MINIMUM FAXIW.U1 RANGE USED CMITTHO 0.0. 9.3 1.1 .5 7.3 io.o 2.7 5 0 APMON .030 .033 " .015 .004 .084 .080 5 0 TSS 4.0 3.4 1.5 .0 - 8.8 8.8 5 0 TP .018 .025 .011 .000 .050 .050 5 C NITRA .957 .201 .-09C .820 1.300 .480 5 0 NH3 .0010 .0014 .0006 OOC1 .0034 .0033 5 ' 0 TKN .114 .019 .009 .100 .140 .040 5 0 STATION 82 BELCW RANGEN TRCUT HATCHERY PEAN STO OEV STO £31 f INIPUM KAXIP'JI RANGE USED CHITTED D »G » 7.9 1.1 .5 6.2 9.4 3.2 5 0 AfMON 2?2 .044 .019 .232 .337 .105 5 0 TSS 7.9 6.2 2.8 .0 16.4 16.4 5 0 TP .136 .C43 .019 .100 .200 .100 5 0 NITPA .919 .173 .077 .814 1.220 .406 5 0 NH3 .0033 -.3022 .0010 .0013 . .0071 .0058 5 0 TKN .630 .082 .037 .500 .700 2CO 5 0 **LEGEND D.O. = Dissolved Oxygen AMMON = Total Ammonia TSS = Total Suspended Solids TP = Total Phosphorus NITRA = Nitrates + Nitrites NH3 * Un-ionized Ammonia TKN * Kjeldahl Nitrogen ------- STATION 83 ABOVE JONES TRCUT HATCHERY** PEAN STO OEV 5TO £R* PINIPU'1 PAXI*U1 RANGE USED QUITTED 0.0. 13.0 4.0 1.3 9.7 19.5 9.3 5 0 A«MON , .234 .136 .061 .053 .391 .333 5 0 TSS 9.6 8.9 4.C .0 22.0 22.0 5 0 TP .114 .022 .010 .100 .150 .050 5 0 NITRA 1.580 .633 .283 1.070 2.510 1.440 5 0 NH3 .0183 .0313 .5142 .0015 .0750 .0735 5 0 TKN .562 .152 .268 .400 .800 .400 5 0 STATION 84 3ELCW JONES TROUT HATCHERY O.Q. A MM ON PEAN STO OSV STO ERR J»IM»lr« PAXI«'J1 RANG2 USED CHITTEO 10.8 .7 .3 1C. 2 11.6 1.4 5 0 .344 .223 .ICO .139 .729 .540 5 0 TSS 6.6 6.0 2.7 .0 16. C 16. 0 5 0 TP .108 .011 .005 .ICC .120 .020 5 0 NITRA 2.624 3.694 1.652 .791 9.23C 8.439 5 0 NH3 .0061 .0077 .0034 .0007 .J1S4 .0187 5 0 TKN .638 .091 .C41 .530 .700 .200 5 0 35 A8GVE IDAHO SPRINGS TRCUT HATCHERIES PEAN STQ 02V STD c<5R PIN I Pin PAXIPtJI RANGE USED CWITTSO c.a. 11.7 2.J .9 10.1 14.8 4.7 5 0 AMKON .137 .050 OZ2 .055 .185 .130 5 0 TSS 9.9 7.3 3.5 l.C 20. C 19.0 5 0 TP .110 .017 .008 .100 .140 .040 5 0 NITRA 1.024 .191 .086 .721 1.170 .449 5 0 NH3 .0049 .QQ24 .con .0031 .0090 .0059 5 0 TXN .514 .129 .C58 .400 .710 .310 5 0 ------- STATION B5A 86LOW IDAHO SPRINGS TRCUT HATCHERY** rEA.N STD OEV STD ER1* HINX.'UM PAXXJNJ1 RANGE USED CHITTED 0.0. 10.7 1.1 .6 9.6 12.3 2.4 4 0 APMON .087 .042 ' .021 .036 .136 .100 4 0 TSS 3.4 2.7 1.3 .0 6.0 6.0 4 0 TP .103 .005 .002 .100 .110 .010 4 0 NITRA .957 .052 .026 .908 1.020 .112 4 0 NH3 .0034 .0012 .0006 .0020 .0047 .0027 4 0 TKN ^36^ VC^S .C37 .330 .450 .150 4 0 STATION B6 8ELQH FISHERIES DEVELOPMENT TROUT HATCHERY WEAN STO OSV STO ERR MNI.-U1 PAXI'UI °ANGE iEQ CMTTE.') 0.0. 9.8 .3 .4 a. 9 11.0 2.1 5 " 0 AHHON .132 .061 .027 .370 .231 .161 5 0 TSS 9.3 7.9 3.5 .0 21.0 21.0 5 3 TP .102 .004 .002 .100 .110 .010 5 0 NITRA 1.032 .123 .055 .960 1.250 .290 5 G NH3 .0053 .0026 .0012 .0031 .0097 .0066 5 ^ u TKN .394 .056 C25 .300 .450 .150 5 0 STATION 87 BELOW HIGHWAY 30 ^_ f»cAN STO CSV STO £7°, 1»INI*LM PAXI-'JM RANGE USED CMITTrO C.O. 1C..) .4 .2 9.6 iC.7 1.1 5 0 AMMON .086 .025 .011 .049 .117 .068 5 0 TSS 9.9 8.9 4.C .0 24-.0 24. C 5 0 TP .102 .018 U08 .G80 .13C ,C5C 5 0 NITRA .958 04C .018 .920 1.02G .100 5 0 NH3 .0019 .0008 .0304 .0012 .C030 0018 5 0 TKN .368 .389 .C4C .200 .510 .210 5 0 ^LEGEND D.O. = TSS = NITRA = TKN Dissolved Oxygen Total Suspended Solids Nitrates"-i- Nitrites Kjeldahl Nitrogen AMMON = Total. Ammonia TP = Total Phosphorus NH3 = Un-ionized Ammonia ------- TABLE C: 8ILLINGSLEY CREEK FIELD DATA SORTEO BY DATE1 (FLOW - CFSJ OTHER DATA - MG/L) FIELD rMTA COLLECTED-JANUARY 31, 1984 STA 1ILE DATE FLOh 0.0. AHHON TSS TP NITRA NH3 FIELD !MTA COLLECTED MARCH 6 AND 7, 1934 STA "ILE DATE FLOW 0.0. AMMQN TSS TP NITRA NH3 TKN 81 82 83 a* 85 86 97 7.8 7.2 5.8 5.6 4.0 2.6 . 6 01/31/84 01/31/84 01/31/84^ 01731/84 01/31/84 01/31/84 Ql/31/84 .0 44.0 57.0 121.0 136.0 .0 213.0 9.3 7.8 10.2 10.2 IO.1 9.3 10.0 .004 .254 .196 .189 .145 .130 .117 8.3 11*2 22.0 16.0 20.0 21.0 24.0 .040 .120 .120 .120 .110 .110 ' .130 1.300 1.220 1.180 1.080 1.120 1.010 1.020 . CCC1 .0025 .0021 .0027 C031 C038 C015 .130 .690 .500 .500 .560 .420 .510 TKN 81 82 83 84 as B5A 86 87 7.8 7.2 5. 3 5.6 4.0 3.7 2.6 . 6 33/07/84 Q3/CT/84 J3/C6/84 03/C6/84 03/C6/84 03/C6/fl4 03/06/84 03/06/84 .0 31. 0 47.0 99. ij 119.0 179.6 211.0 201.0 7.3 6.2 9.7 10.2 10.6 9.6 8.9 9.7 .039 .271 .173 .199 .166 .101 .099 .081 2.3 16.4 15.2 7.8 14.0 6.0 11.0 7.4 C50 .160 .150 .120 .140 .110 .100 .080 .970 .910 1.070 .970 1.160 .978 .960 .950 .OCQ5 .CC2-7 .CC4? .0016 .OC52 CC31 .CQ31 .CC14 .14C .66f M .710 .450 .450 .33C FIELO DATA COLLECTED APRIL 24, 1984 STA HT/LE DATE FLO* 0.0. AMrtON TSS TP NITRA NH2 "LEGEND D.O. = Dissolved Oxygen TSS = Total Suspended Solids NITRA = Nitrates + Nitrites TKN = Kjeldahl Nitrogen AMMON = Total Ammonia TP = Total Phosphorus NH3 = Un-ionized Ammonia TKN 81 . 82 83 84 85 85A 86 87 7. 3 7. 2 S.8 5,6 4. C 3.7 2. 6 . £ 04/24/84 U4/24/94 04/24/84 04/24/84 04/24/84 G4/24/84 04/24/84 04/24/84 .0 28.0 . 40. 'J ez.c 108.0 153.0 153.0 158.0 9.9 8.1 11.3 11.4 1C. 5 10.0 9.8 9.6 .003 .316 .391 .264 .185 .136 .231 .099 5.8 6.6 6.3 5.6 11.2 5.3 9.6 11.3 .COO .ICO .103 .100 .100 .100 .100 .100 .820 .320 1.170 9.230 .950 .903 1.250 .920 .OCG2 .0027 CC90 .CC63 CG34 .0047 .C051 CC26 .100 .6CG .8CC .7GC .50C .400 .40C .400 ------- FIELD *TA ^81 82 83 84 85 B5A 86 87 TATA NILE 7.8 7.2 5.8 5.6 4. C 3.7 2.6 .6 COLLECTED DATE 05/22/84 05/22/84 05/22/84 05/22/84 . 05/22/84 05/22/84 05/22/84 C5/22/84 MAY 22 FLOW .0 27.0 4.0 . .42.0 45.0 112.0 121.0 .0 » 1984 0.0. 10.0 7.8 19.5 11.6 14.8 12.0 11.0 10.7 ** AMfON .014 .337 .350 .729 .055 .036 .070 .049 ;s 2.8 5.1 3.8 3.4 3.4 2.6 4.8 6.4 TP .COO .200 '.100 .100 .100 .100 .100 .100 NITRA .825 .828 2.510 .791 .721 .922 .970 .930 NH3 CG34 C071 .0750 C194 .0090 CC39 GG97 GG12 TKN .100 *700 .400 .700 .400 .300 .400 .300 FIELD STA OXTA ILE 7.8 7.2 5.8 5*6 >.a 3.7 ?.'6 .6 COLLECTED DATE 06/12/84 C6/12/84 C6/12/84 06/12/84 c-o/12/e* C6/12/84 C6/12/84 06/12/84 JUNE FLOW .0 35.5 5.0 50.8 54.0 120.0 141.0 143.0 12* 1984 0.0. 9.9 9.4 14.2 10.4 12.6 11.2 10. 1 9.9 ANMQN .084 .232 .058 .336 .136 C75 .129 .Q34 TSS .0 .0 .0 .0 1.0 .0 .0 .0 TP .000 .100 .100 .100 .100 .ICO .100 .100 NITRA NH3 .872 .814 1.970 1.050 1.170 1.02C .969 .972 OG06 CQ13 .CC15 .CCC7 GC38 .GC2Q .0048 .C030 TKN .100 .500 .500 .700 .400 .300 .30C .300 **LEGEND D.O. - TSS- NITRA TKN AMMON TP NH3 Dissolved Oxygen Total Suspended Solids Nitrates + Nitrites Kjeldahl Nitrogen Total Ammonia Total Phosphorus Un-ionized Ammonia ------- TABLE D. ; BILLINGSLEY CREEK FIELD OATA SQR7EC ( FLOW - CFS; QTHEP CATA - PG/L) BY STATION ** FIELD OATA FRO* STATION 81 STA MILE DATE FLOW 0.0. AMMON TSS TP NITRA NH3 TKN 81 81 81 ai 81 7.8 7, 8 7.8 7.8 7.8 31/31/84 C3/07/84 04/24/84 . 05/22/84 06/12/84 .3 .0 .0 .0 0 9.3 7.3 5.9 10.0 9.9 .004 .039 .008 .014 084 8.8 2.8 9.8 2.3 .0 .040 C50 .000 .000 .000 1.300 .970 .820 .375 .872 OC01 CQ05 .0002 C034 . CC06 .130 .140 .100 .100 .100 * FLOW WAS NOT MEASURED FIELC 04TA FRQP STATION B2 STA illLE DATE FLOW D.O. ANMON TSS TP NITRA NH3 TKN 82 32 82 82 82 7. 2 7.2 7.2 7.2 7.2 01/31/84 03/G7/84 04/24/84 05/22/84 Ct/12/84 44.0 31.0 23.0 27.0 35.5 7.8 6.2 3.1 7.8 9.4 .254 .271 .316 .337 .232 11.2 16.4 6.6 5.1 .0 ,120 1.220 ,160 .910 .100 .820 ,200 .828 ,100 .814 .CC25 .QC27 .0027 .C071 OC13 .690 .660 .600 .700 .500 FIELD T\TA FRO^ STATION 83 STA 1ILE DATE FLOW 0.0. ArtKON. TSS TP NITRA NH3 TKN S3 83 83 83 83 5.8 =?. a 5. a T. 8 s. a Ui/31/84 03/C6/84 J 4/24/8 4 05/22/84 J6/12/84 57.0 47.0 40.0 4.0 5.0 10.2 S.7 11.3 19.5 14.2 .196 .173 .391 .350 .058 22.3 15.2 6.8 3.8 .0 .120 .150 .ICO 1C3 .ICO 1.180 1.070 1.170 2. 5 1C 1.970 .0021 .CC4C .C090 .C750 .0015 .500 .610 .800 .40C .500 34 34 84 H4 8* T\ TL 5 T . "5 . 5. 5 . TA * c (, fc 6 6 fc FSO* STATION 8* DATE n/3i/*<* 0 2/C ^/ 64 24/24/84 05/22/R4 C6/12/84 FLOW 121. 99 . 62. 42. 50. w ^ 0 0 8 0«C. 1J.2 10.2 11. V 11.6 13.4 A^PON .139 .199. .264 .729 .332 TSS 16. 7. 5. 3. .-) a 6 4 J TP t 123 120 IC'J 100 100 NITRA 1.050 .970 9.230 .791 1.050 .CC27 .CC16 CC63 .C194 .CC07 .500 .590 .70 .700 ------- FIELD OMA FRQf STATION 65** -ILE OATS FLOW D.O. AHMQN TSS B5 85 65 85 85 4.0 4.0 4.C 4. C 4.0 01/31/84 03/06/84 C4/24/84 C5/22/84 06/12/84 136.0 119.0 108.0 " 45.0 54.0 10.1 10.6 10.5 14.8 12.6 .145 .166 .135 .05! .136 20.0 14.0 11.2 3.4 1.0 TP NITRA NH3 .110 1.120 .140 1.160 .100 .950 .100 .721 .100 1.170 C031 .C052 '.CC34 CC90 .0038 TKN .560 .710 .500 .400 .400 FIELD OXTA FROW STATION B5A STA "ILE DATE FLOW 0.0. AMMON TSS B5A' 1,7 U3/C6/84 E5A 3.7 04/24/84 E5A 3.7 03/22/84 B5A 3.7 06/12/84 179.6 9.6 153. 0 10.0 112.0 12.0 120.0 11.2 .101 .136 .036 .072 6.0 5.0 2.6 .0 TP NITRA NH3 .110 .978 .100 .908 .100 .922 .100 1.020 CC31 .CC47 .0039 .0020 TKN .450 . 40C .300 .300 FIELC 0\TA PROP STATION 6 STA :1ILE DATE FLOW 0.0. ArtfON TSS 86 86 96 86 80 2.6 2.6 2.6 2.6 2.6 01/31/84 03/06/84 04/24/84 35/22/84 .6/12/84 .0 211.0 183. 0 121.0 141.0 9.3 8.9 9.8 11.0 10.1 .130 .099 .231 .070 .129 21.0 11.0 9.6 4.8 .0 TP NITRA' NH3 .110 1.010 .100 .960 .100 1.250 .100 .970 .100 .969 .0038 .0031 .CC51 .CC97 .CC43 TKN .420 .450 .400 .400 .300 FIELD 0\TA FROM STATION 87 STA *ILE DATE FLOW 0.0. ArtHON TSS TP NITRA NH3 TKN 87 87 67 " 7 .6 . 6- ' . 6 . 1 . t 01/31/84 03/C6/84 : vz*/?<> 05/22/84 WO/12/S4 213.0 201.? L58.Q .0 14 3. J 10.0 S.7 9.6 10.7 9.9 .117 C31 .099 .049 .C84 24.'J 7.4 11.3 6.4 .0 .130 .cao .ICO '' .10.) .100 1.020 .950 .920 .930 .972 .C015 .0014 CC26 .CC12 CC3C .510 .330 .400 .3CC- .300 ------- if* 14 1A I* 1* IA IrtflLb .t' BILLIM;SU Y I FLOW CH:.J:K CMJUJ HAltHtKI UTH!-fc 0«T/ MG/LJ MILE n»TE kMLUfcNi H; i* RVIGEN SETTLING PflNl EFFLUENT R4IGIN SETTLING POHt AFFLUENT RA IGtN SttTLIfcG PUMO EFFLUENT IM-IGEN SETTLING POND EFFLUENT HVIGIN SFTTLUG PUMC AFFLUENT STA N4'U Fl RVHGEN PACEWAY CFFLUtNT Ft "UIGKN RACEWAY EFFLUtNT Fl RtMGEN RACEWAY EFFLUENT Fl RVICEN FACEWAV EFFLUENT Fl RVIGEN RACEWAY EFFLUUIT FLO* t ..o^W .o.n. ANPOMA TSS 7.4 7.4 7.4 7.4 7.4 01/31/04 03/07/84 04/24/84 09/22/84 06/12/84 3.3 7.t- 5.0 5.7 3.3 f,3 fl.O C.1 7.5 7.7 3.4 1.7 4.3 1.1 2.4 .171 .118 .315 .111 .514 1.6 4.6 6.8 7.0 2.2 NILE DATE FLOW C.O. B.0.0. AMCOMA TSS 7.3 7.3 7.3 7.3 7.3 01/31/84 03/07/84 04/24/84 09/22/84 06/12/84 41.0 24.0 23.0 21.6 28.9 7.5 7.2 7.1 7.6 7.1 1.1 2.6 J.7 2.0 2.2 .246 .268 .317 .287 .224 6.6 TP NITRA TKN .170 .140 .480 .110 .170 .7C') .100 .920 »«rO .1JO .fllfl .600 .10U .834 .500 TP NITRA TKh .060 1.260 .940 1.6 .120 1.020 .510 5.4 .100 .140 .500 7.8 .100 .75) .400 2.7 .100 .744 .900 STA NA1E F2A J1H(S SETTLING POND EFFLUENT FZ* JlMtS SETTLING POND EFFLUENT F2A JO'IES SETTLING POhO EFFLUENT F2A JtVIFS SETTLING POND EFFLUENT F2A JTIES SETTLING POND EFFLUENT HUE DATE FLOW C.O. 8.0.0. AHKOMA TSS TP NITRA TKN 5.7 9.7 5.7 5.7 5.7 01/11/84 01/06/84 04/24/84 09/22/64 06/12/84 4.0 2.0 2.0 .0 1.4 8.4 7.1 8.5 e.n 7.6 2.9 6.9 8.7 2.4 4.6 .138 .261 .286 .317 .404 0.6 8.0 1.0 1.0 4.8 140 .410 .400 .300 .300 .970 .100 .860 .82) .886 .4(10 1.010 l.OPO .icn .900 VI STA NME F2 J1HES RACEUY EFFLUENT F2 /VIES RACEkAY EFFLUENT F2 HUES RACEWAY EFFLUENT F2 JdlES RACEhAY EFFLUENT F2 JlrlES RICthAT EFFLUENT. STA N41E NILE DATE FLOW C.C. 8.0.0. AMOMA TSS .7 .7 .7 .7 .7 01/31/64 03/06/84 04/24/84 09/22/84 06/12/84 97.0 91.0 40.0 34.0 41.1 (.6 8.0 7.9 1.2 8.6 3.1 2.4 4.1 2.1 2.4 .221 .297 .361 .399 .416 6.8 1.4 4.2 9.2 1.0 MILE DATE FLOM 0.0. 8.0.0. AHKOMA TSS TP NITRA TKN .080 1.110 .440 .120 1.000 .990 .200 .660 .900 .200 .843 .TOO .100 .108 .700 TP NITRA TKN a k- k- n it ii it F3A FJA FJA F3» IDAHO SPRINGS REARIKG PONO EFF IDAkiO SPRINGS REARING PONO EFF I'M 1-0 SPRINGS BEARIKG POND EFF IIMKT SPRINGS REARING PONO EFF 3.9 3.9 3.9 3.9 03/06/84 04/24/84 09/22/64 06/12/64 (0.0 37.0 19.0 11.3 9.9 10.8 13.8 12;? 1.4 2.0 .6 1.4 .144 .169 .067 .106 *! 4.f 3.6 7.4 H. 100 .100 ,.100 .100 1.090 .960 1.041 1.900 .900 .900 .400 .400 LU O r n ^"\ *r" i n \D O £^ vi ui s: > _» 0 < k- * ------- STA N41E NILE DATE FLOW C.O. 8.0.0. ANKOMA TSS TP NITRA TKN F3 It)*HO SPRINGS RACEWAY EFFLUENT F3 I04HO SPRINGS RACENAT EFFLUENT F3 ID*HO SPRINGS RACEWAY EFFLUENt F) IDttO SPRINGS RACEWAY EFFLUENT F3 lOltO SPRINGS RACEWAY EFFLUENT 8 6 8 8 8 01/31/84 03/06/84 04/24/84 09/22/84 06/12/84 .0 99.0 49.0 90.0 (0.0 1C.O 9.9 10.) 11.1 11.2 1.6 .8 2.0 .2 .2 .0?6 .021 .029 .039 .030 3.2 1.6 8.6 9.6 7.8 .030 .040 .100 .100 .ouo .880 .820 .770 .177 .818 .I6C .150 .200 .100 .100 FLOW C.C. B.0.0. AMHOMA TSS STA NME NILE DATE ft FISH DEV SETTLING PONO EFFLUFN F4 FISH DEV SETTLING PONO EFFLUEN F4 FISH DEV SETTLING POND EFFIUEN M FISH OEV SETTLING PONO EFFLUEN ft FISH OEV SETTLING POND EFFLUEN 2.7 06/12/04 19.5 9.2 2*4 2.7 2.7 2.1 2.7 01/31/84 03/06/84 04/14/84 09/I2/C4 11.0 13.0 0.0 7.2 8.9 1C'. 8 9.1 9.4 6.1 1.9 4.4 2.4 .387 .076 .427 .434 .066 TP .149 .060 .ZOO .200 MITRA .99? .780 .110 .310 ,730 .900 .728 1.001 40 .200 .996 ,900 **LEGEND D.O. = Dissolved Oxygen AMMON = Total Ammonia TSS = Total Suspended Solids TP = Total Phosphorus NITRA = Nitrates + Nitrites NH3 - Un-ionized Ammonia TKN = Kjeldahl Nitrogen B.O.D. =^5 day Biochemical Oxygen Demand ------- Table F: TSS and Settleable Solids 1n Cleaning Effluents of Trout Hatcheries Date Springs Hatchery Crystal Spr 5/ZO/83 5/22/83 5/23/83 5/24/83. 6/08/83 6/09/83 R1m View Hatchery b/01/83 Pisces Hatchery 5/12/83 5/13/83 5/14/83 5/15/83 5/16/83 F1sh Breeders 5/19/83 5/20/83 5/21/83 5/22/83 5/23/83 5/24/83 5/25/83 6/08/83 6/09/83 6/10/83 Hagerman Hatchery 5/16/83 5/17/83 5/18/83 5/19/83 5/20/83 5/21/83 Rangen Hatchery 5/29/83 5/30/83 6/01/83 6/03/83 6/04/83 Jones Hatchery 6/02/83 6/07/83 Effluent (mg/1) 264 142 186 128 124 22 42 132 110 92 103 150 33 25 30 22 36 25 24 37 23 35 13 6 11 4 5 6 8 9 34 3 22 13 49 TSS Effluent Set. (ml/I) 2.5 0.5 11.0 Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace Trace 0.1 Trace 0.3 Trace 0.2 Trace Slds, ------- Table G : Rangen Self Monitoring Data Date 01/83 02/83 01/84 02/84 03/84 05/84 TSS iag/1 4.0 29.0 14.0 38.0 42.75 29.8 Settleable Solids ml/I less than less than less than less than less than less than .1 .3 .1 .1 .1 .1 Table H : Total Nitrogen, Total Phosphorus and the N/P Ratio at B1l11ngsley Creek B1 82 83 B4 85 B5A 86 11/31/84 3/07/84 4/24/84 5/22/84 6/12/84 1/31/84 3/07/84 4/24/84 5/22/84 6/12/84 1/31/84 3/06/84 4/24/84 5/22/84 6/12/84 1/31/84 3/06/84 4/24/84 5/22/84 6/12/84 1/31/84 3/06/84 4/24/84 5/22/84 6/12 3/06 4/24 5/22 6/12 1/31 3/06 4/24 5/28 6/12 1/31 3/06 4/24 5/22 6/12 TN 1.4 1.1 .9 .9 1.0 1.9 1.6 1.4 1.5 1.3 1.7 1.7 2.0 2.9 2.5 1.6 1.6 9.9 1.5 1.8 1.7 1.9 1.5 1.1 1.6 1.4 1.3 1.2 1.3 1.4 1.4 1.7 1.4 1.3 1.5 1.3 1.3 1.2 1.3 TP .04 .05 0 0 0 .12 .16 .1 .2 .1 .12 .15 .1 .1 .1 .12 .12 .1 .1 .1 .11 .14 .1 .1 .1 .11 .1 .1 .1 .11 .1 .1 .1 .1 .13 .08 .1 .1 .1 N/P 35 22 16 10 14 7.5 13 14 11 20 29 25 13 13 99 15 18 15 14 15 11 16 13 13 12 13 13 14 17 14 13 12 16 13 12 13 ------- TP §1 0-0.05 TABLE I: Comparison of Nutrient Levels at Station B1 With Nutrient Levels In The Hatchery Effluents Rangen Raceway Settling Pond 0.08-0.12 0.1-0.17 Jones Idaho Springs Raceway Settling Pond Raceway Settling Pond 0.00-0.2 0.14-0.49 0-0.1 0.1 Fisheries Develop. Settling Pond 0.06-0.2 Aimtonla 0.004-0.084 0.224-0.317 0.179-0.594 0.221-0.416 0.138-0.404 0.21-0.39 0.067-0.169 0.066-0.434 KJeldahl-N 0.1-0.14 0.4-0.9 0.48-0.8 0.44-0.90 0.4-1.01 0.1-0.2 0.4-0.5 0.310-1.0 Nitrite/ Nitrate 0.82-1.3 0.744-1.26 0.818-0.97 0.843-1.11 0.823-0.97 0.77-0.88 0.96-1.5 0.596-0.950 0405d ------- TABLE J-': BILUNGSLE* CREEK NH3 CRITERIA AND ACTUAL NH3 CONCENTRATION DURING THE 1984 FIELD STUDY STATION » DATE Bl Bl Bl 81 81 B2 B2 82 82 B2 R3 B3 B3 83 B3 B4 B4 B4 *4 B4 B5 B5 H5 B5 B5 t»5A B5A BSA B5A Bb B6 Bb *~ 66 = Bb 87 87 B7 B7 fc»7 1/31/84 3/7/84 4/24/84 5/22/84 b/12/84 1/31/84 3/7/84 4/24/P4 5/22/84 b/12/84 1/31/84 3/6/84 4/24/84 5/22/84 0/12/84 1/31/84 3/6/84 4/24/«4 5/22/44 6/12V84 1/31/84 3/6/84 4/24/84 b/22/84 t>/12/84 3/6/84 4/24/84 5/22/84 b/12/84 1/31/84 3/6/84 4/24/84 5/22/84 0/12/84 1/31/84 J/b/84 4/24/84 5/22/S4 b/12/84 TEMP (C) PH(SU) 14.00 14.2 14.8 14.2 14.5 13.8 14 14.8 15 14.9 12.1 14 16.1 15 15 13 14.2 16.6 15.1 15 12 14.3 lo lo-.9 15.5 14 15.6 Ib.b 15.8 13.2 14.2 15.5 17 16.5 11 .6 12.5 14.9 In Ib 7.90 8.1 8 8 8.1 7.b 7.6 7.5 7.9 7.3 7.7 8 7.9 9 8 7.8 7.5 7.9 8 6.9 t» 8.1 7.8 8.8 8 8.1 8.1 8.0 8 a. i 8.1 7.9 8.7 8.1 7.8 7.9 8 P.O H.I \\ 30-DA* \\CRltEPIA \\MG/L NH3-N \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \S \\ \\ \\ \\ \\ \\ \\ \N \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ 0 0 0 0 0 0 0 0 0 0 0 0 0 n 0 0 0 0 0 0 0 0 0 n 0 0 0 0 1) 0 11 0 0 0 0 0 0 0 0 .025 .025 .025 .025 .025 .021 .021 .018 .025 .013 .025 .025 .025 .025 .025 .025 .018 .025 .025 .007 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .02b .025 .025 .^2b \\ MAXIMUM \\ CRITERIA \\MG/L NH3-N \\ \\ \N \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ A\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I) 0 0 0 0 -0 0 0 0 0 0 0 0 .098 .107 .103 .103 .107 .081 .081 .075 .09* .060 .088 .103 .098 .121 .103 .093 .075 .098 .103 .033 .103 .107 .093 .120 .103 .107 .107 .118 .103 .107 . 107 .098 .119 .107 .093 .098 .103 .1 IP .107 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ N \ \ \ \ ACTUAL NH3 MG/L NH3- .0001 .0005 .0002 .0034 .0006 .0025 .0027 .0027 .0071 .0013 .0021 .0040 .0090 .0750 .0015 .0027 .0016 .0063 .0194 .0007 .0031 .0052 .0034 .0090 .0038 .0031 .0047 .0039 .0020 .0038 .0031 .0051 .OU97 .0048 .0015 .0014 .0026 .0012 .OU30 ------- FIGURE i: DISSOLVED OXYGEN (0) AND TSS (S) IN MG/L VERStS RIVER fllLE ON JANUARY 31, 1984. 25. 24. 23. 22. 21. 20. 19. 13. 17. 16. 15. 14. 13. 12. 11. 13. 9. a. .5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8 ! f ^ <^ « w w V «* » v ^v« .-»1~» >-.- + -.--..-.».----+. \ \ f\ *r- .5 5 l.J 1.5 2.0 2.5| 3.0 3.5 |4.0 4.5 5.0 5. FISHERIES DEVELOPMENT IDAHO SPRINGS i i JONES 6.0 6.5 7.0 RANGES ------- 2: DISSOLVED OXYGEN (0) AND TSS (S) IN MG/L VERSUS PIVER WILE ON flAPCh 6-7t 1984. 5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 £ I - -1' . 5 1.0 1.5 2.0 2.5 FISHERIES T 3.0 3,5 |?.0 4.5 5.0 5.5^ 6.0 6.5 7.0 J7.5 IDAHO JONES RANGeN DEVELOPMENT SPRINGS ------- PIGURE 3s DISSOLVED OXYGEN (0) AND TSS CS) IN MC/L VERSUS RIVER MILE ON APRIL 24,1934. .5 1.0 1.5 2.0 2.5 3.0 3.5 4..0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 . 5 1, .0 1.5 2.0 2.5T 3.0 3.5 X.O 4.5 5.0 5.5 * 6.0 6.5 7.0 FISHERIES IDAHO DEVELOPMENT SPRINGS J( ONES 7.5 RANCENi ------- FIGURE 4: DISSOLVED OXYGEN (0) AND TSS (S) IN MG/L VERSUSS RIVER MILE CN MAY 22, 1984. .5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.2 » 20. 19. 13. 17. 16. 15. 14. 13. 12. , 9 14. 9. a. 7. 6. 5. 4. 3. t i ; i i i i t i t t t ! 0- t t t i t i ! £ i i ! i t i * < .5 -\ 1.0 1.5 . >_..~_>_.i_._4._. 2.0 2.5T 3.0 FISHERIES DEVELOPMENT 3.5 IDA SPRINGS f \ ' ' 4.0 4.5 "HO 5.0 5.S7 J ^ 6.0 ONES 6.5 7.0 .7?:r tANGEN ------- PIGURE s: DISSOLVED OXYGEN (o AND TSS m IN MG/L VERSUS RIVER MILE QN JUNE 12, 1984. .5 1.0 1.5 2.0 2.5 3.0 3.2 15. 14. 13. 12. 11* 10. 9. a. 7. 6. 5. 4. 3. 2. 1. 0. ; ! . 1 t I 1 1 1 1 t 1 1 1 1 I t 1 1 t t t =_ .5 1.0 1.5 2.0 2.51 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.; . t . FISHERIES DEVELCPHENT I.S 14.j 4.5 5.0 ICJAHO SPRINGS *-*-»rpr*~ fc.O 6.5 7.0 |7.« JCNES RANGES ------- FIGURE 6 B i 11 i n g s I ey C re e k D. U. March, 1 984- 1 1 .'_' 1 0.0 - c 9,0 - a;- p> ,.. o o S.O - in Q 7.0 - 6,0 - 3.0 - C 0 """-- o o ""---^. -o- ~^%. X * \ \ A \ \ \ 'i \ WATER QUALITY STANDARD 1 II ill J . 24- 6 Fiekl'data""" ------- FIGURE 7 "L- o (.0 to 13 12 - 1 1 - 10 - U Billingsley Creek D.O June, 1984- WATER QUALITY STANDARD 0 I 4 River Mih Field doto ------- FIGURE 8 c Ov o fl- irt 8.5 Billingslev Creek D.O LOW FLOW R - 7.5 7 6.5 - 5.5 -J LI WATER QUALITY STANDARD T" 4 River Miles ------- |