Permit No. CO-0047104 Page 1 of 5 COLORADO DISCHARGE PERMIT SYSTEM (CDPS) FACT SHEET FOR AMENDMENT NO.1 ART GUTTERSEN LLC GUTTERSEN SERVICE CENTER TRUCK WASHOUT CDPS PERMIT NUMBER CO-0047104 WELD COUNTY _____________TABLE OF CONTENTS_____________ I. TYPE OF PERMIT 1 II. FACILITY INFORMATION 1 III. PURPOSE OF AMENDMENT 2 IV. CHANGES MADE AS A RESULT OF THE AMENDMENT 2 V. PUBLIC NOTICE COMMENTS 4 __________________________________ I. TYPE OF PERMIT Amendment No. 1 II. FACILITY INFORMATION A. Facility Type: Industrial Wastewater – Lagoon System and Land Application Fee Category: Category 12, Subcategory 2 Category Flow Range: 0 up to 49,999 GPD Annual Fee: $2,150 per 25-8-502 of the Colorado Water Quality Control Act (effective 7/1/07) Amendment Fee: $1,183 (55% of Annual Fee, Major Amendment) Facility Classification Class D per Section 100.6.2 of the Regulations for Certification of Water Treatment Plant and Wastewater Treatment Plant Operators. SIC Code = 4789 B. Legal Contact: Art Guttersen, Owner/President Art Guttersen LLC dba Guttersen Service Center 23691 Highway 263 Greeley, Colorado 80631 970-352.7588 GuttersenService@gmail.com C. Facility Contact: Roger Mantz Wayne Ramey, Operator Truckwash Manager 59595 Iris Parkway, Unit A 23691 Highway 263 Frederick, Colorado 80504 Greeley, Colorado (303) 833-5505 970-352-7588 (303) 921-0129 (Cell) GuttersenService@gmail email@example.com D. Facility Location: SW 1/4, NE 1/4 Section 1; T5N; R65W; 6th PM; Weld County. The truck wash is east of the Weld County Municipal Airport on State Highway 263, near the intersection of County Road 49 and State Highway 263. Lat. = 400 25' 45 Long. = 1040 36' 26" ISSUED________________ EFFECTIVE________________ EXPIRATION: May 31, 2014 Permit No. CO-0047104 Page 2 of 5 E. Discharge Points: Outfall 001 is the discharge side of the pivot pump and is representative of the effluent being land applied at the three sites mentioned below. Outfalls 002, 003, and 004 are the three points where effluent is land applied via sprinklers. These outfalls exist for flow monitoring only. Land application can occur, dependent on type of irrigated crops, from March through November at ET and/or agronomic rate(s) (depending on the composition of the wastewater) and must comply with all local, state, and federal requirements. This permit does not override any other requirements. DMR reporting, regardless of whether discharge occurs, is required every month (see Section VI.B. And Parts I.B.1. and I.E.1. of the permit).The sites of land application are : Gatewood Center Pivot (Outfall 002) – 200 acres; Wagner Center Pivot (Outfall 003) – 130 acres; and Romburger Center Pivot (Outfall 004) – 130 acres. Figures 1, 2, and 3 display the facility and land application areas (see last pages in the PERMIT). F. Facility Flows: 2.02 MGD - maximum flow to be land applied during any month (permittee will be be applying this flow for only day each month) during the irrigation season, March through November, dependent on type of irrigated crop. No discharge will occur during December through February and the washout flow is stored in a lined pond specifically designed for this use. III. PURPOSE OF AMENDMENT In a letter dated June 17, 2009, the permittee requested two changes to the permit: (1) Outfall 001 be removed and Outfalls 002, 003, and 004 will continue and become the compliance points, with analyses conducted on a flow-weighted composite sample. Samples of the effluent at the point of discharge to land are believed to be more representative than a sample taken on the discharge side of the pivot pump. (2) The effluent limitations for BOD, total coliform, and total inorganic nitrogen (TIN) be removed and replaced with monitor only requirements. The soil is proposed as sufficient land treatment based on submitted technical data provided in the letter and on information contained in the original application for the discharge permit. The permittee will collect soil samples from below the root zone (72 to 84 inches) once a year for BOD and fecal coliform analyses. Also, an annual report will be submitted and contain – total volume of effluent applied to land, total number of acres used, nitrogen loading (lbsN/acre/yr), BOD loading (lbs BOD/acre/yr),and hydraulic loading (inches applied/acre/yr). On August 13, 2009, the Water Quality Control Division (Division) received an application for transfer of ownership for the permit which was signed by the previous permittee (Larry Miller, L.W. Miller Transportation, August 6, 2009) and the new permittee (Art Guttersen, Art Guttersen LLC dba Guttersen Service Center, July 29, 2009). IV. CHANGES MADE AS A RESULT OF THE AMENDMENT The Division is transferring ownership of the permit concurrently with the amendment of the permit. Regulation 61.8(6) indicates that a permit may be automatically transferred in 30 days, unless the Division notifies the permittee of an intent to modify or to revoke and re-issue the permit. Since the Division was working on amendment request when the transfer request was received, the permittee was notified that the transfer would be concurrent with the amendment action. Concerning the first request to re-assign the compliance point, the Division agrees;however, there is no need to remove Outfall 001. The purpose of Outfall 001 is to monitor the quality of the effluent prior to land application in order to provide data for evaluation of compliance with the effluent limitations that limit the amount applied to agronomic rates and land treatment. The monitoring of the effluent quality based on composite sampling (flow-weighted) of flows applied to each of the three sites is a reasonable option to sampling at the discharge side of the pivot pump. The permit is changed to note that reported vales for Outfall 001 will be calculated from composite sampling measurements of the applied flow at each of the three land application sites. There is no change to the requirements for Outfalls 002, 003, and 004. Concerning the second request and accompanying data, the Division agrees that,given the conditions described in this Fact Sheet, there is essentially no opportunity for the applied effluent reach the groundwater, which is at a depth of 18 to 36 feet, Permit No. CO-0047104 Page 3 of 5 and thus the limitations based on protecting groundwater quality should be changed to monitor only. However, application rate limitations based on hydraulic and agronomic rates (nitrogen based) are added to limit migration of applied effluent and associated nitrogen beyond the root zone within the fields. The technical rationale for these decisions is provided below. Hydraulic Loading Assessment The effluent will be stored in a lined holding pond and applied, one day a month, through the three pivots to 460 acres during the growing season (March through October) (Table 1). The applied effluent is less than 5% of the monthly water required by the crops during April through October. Thus, the applied effluent will be consumed by evapotranspiration(ET) during these months. Also, given the precipitation rates, the fields will be irrigated with supplemental water (non-effluent) during the other days of the month. Although effluent may be applied during March, early portion of the growing season when crops are not fully established, deep percolation is not expected due to the low application rate. Based on the provided soil data for the three fields, the permeability is between 0.6 and 6 inches/hour. With groundwater at a depth of 18-36 feet, there essentially no reason to expect the applied effluent would reach the groundwater. Depending on the operation of the truckwash prior to the growing season, the storage pond may have available capacity and not need to discharge during March. Using the information in Table 1, effluent can not be applied unless the irrigated crop is exhibiting the consumptive use. For example, effluent can only be applied in April or October when the irrigated crops are either alfalfa or grain corn. Silage corn may be irrigated with effluent during May through September. Further, this assessment applies when the irrigate crops are those listed in Table 1, or other crops that exhibit greater consumptive use rates during the growing season. This means that the application period will be depending on the crop water requirements in terms of evapotranspiration. Applications will only be allowed in months in which evapotranspiration rate exceeds the precipitation amount. Table 1. Monthly Consumptive Use, Precipitation, and Effluent Application Rates (inches) Month Consumptive Use Average Effluent Alfalfa Silage Corn Grain Corn Precipitation Application January 0 0 0 0.49 None February 0 0 0 0.37 None March 0 0 0 1.12 0.16 April 2.0 0 1 1.85 0.16 May 4.2 1.9 1.9 2.51 0.16 June 6.4 4.0 4.0 1.88 0.16 July 8.0 7.3 7.3 1.48 0.16 August 6.6 6.6 6.6 1.15 0.16 September 3.8 2.0 2.0 1.16 0.16 October 0.6 0 2.0 1.0 0.16 November 0 0 0 0.82 None December 0 0 0 0.45 None Total 31.6 21.7 24.7 14.28 1.28 Notes: 1. Consumptive use data from NRCS Colorado Irrigation Guide, Greeley. 2. Precipitation data from NOAA, Greeley 3. Effluent application is limited to 2.02 MGD (6.20 acre-feet) each month during irrigation season. This volume (6.20 acre-feet) applied to 460 acres equals 0.16 inches/acre. Thus, the rate is 016 inch/ac/month or according to the permittee’s plan to apply this water during one day, 0.16 inch/ac/day. Agronomic Rate Assessment: Nitrogen Based For this assessment, the Division uses Water Quality Policy (WQP#21) entitled “Guidance for the Determination of Agronomic Rate for Application of Reclaimed Water Under Colorado Regulation No. 84” (July 2007). To determine the annual amount of nitrogen that is applied to the cropland, the following equation is used. Permit No. CO-0047104 Page 4 of 5 (Annual Volume of Effluent Applied in million gallons) x (Average annual TN in mg/l) x (8.34) (Total Area Irrigated with Effluent in arces) Using the data for this permit, the result of the equation is: (2.02 MGD x 8 days) x ( 19.3 mg/l* ) x (8.34) = 2,601 = 5.65 lbs/ac/yr (460 acres) 460 *An effluent sample from February 8 2005 was analyzed with the following results: ammonia (as nitrogen) = 19.3 mg/l and nitrate (as nitrogen) = less than 0.1 mg/l. The three crops will easily be able to utilize the inorganic nitrogen in the effluent applied to the land. A crop of corn or alfalfa will utilize several hundred pounds of plant available nitrogen during the growing season.The above policy uses a threshold of 174 lbsN/ac/yr for turf grass (i.e., the addition of inorganic nitrogen by the effluent should not be above this value.) Continued Monitoring of BOD and Fecal Colifoms The permittee submitted information on land treatment of BOD and coliforms, based on local soils data and reference information from soil science and from slow-rate system for treatment of wastewater. Also, the permittee noted that fecal coliforms rather than total coliforms is the appropriate colifom measure. The permittee will continue to monitor these parameters at Outfall 001, per permit requirements, and has volunteered to provide: (1) annual BOD and fecal coliform analyses of soil samples (taken from a depth of 72-84 inches, or below the root zone) from each cropland area, and (2) an annual report with the following information: total volume of effluent applied total number of acres used (with designation of types of irrigated crops) nitrogen loading (lbsN/acre/yr) BOD loading (lbs BOD/acre/yr) hydraulic loading (inches applied/ac/yr). The Division concluded that reasonable potential does not exist for the application of BOD and coliforms to the three irrigated land areas. However, these parameters are included in the permit for two reasons: the permittee volunteered to monitoring for these parameters and the acquisition of these measurements will be helpful to the Division when considering future permit conditions for land application of industrial wasterwaters. Compliance with the permit is determined from information provided on the monthly DMRs and any inspections performed by the Division and not from informaion provided in the annual report. The annual report provides documentation in the Division file for this permit that additional soil data were collected and are available, with companion summaries of the DMR data, for future evaluations. Removal of Monitoring Requirements The permit contained requirements for the following effluent parameters based on a need to protect groundwater quality: chloride, sulfate, total dissolved solids, dissolved cadmium, dissolved selenium, and dissolved lead. Based on the above hydraulic loading assessment, the Division concludes that the applied effluent will not reach groundwater and, thus, these requirements are removed. The permit contained a requirement for oil and grease, which is removed, since the effluent is not expected to contain significant quantities of this parameter. However, the requirement for pH will remain in the permit but be based on Regulation No. 62, not Regulation No. 41. Other Administrative Changes Permit No. CO-0047104 Page 5 of 5 Changes were made to Part I and Part II of the permit was replaced with current boilerplate for industrial permits. This was done since there was a long period between public notice and issuance of the permit which resulted in the information being significantly outdated. Figures 1, 2, and 3 were added to clarify the location of the facility, facility details, and the location of land application areas. Gary Beers October 23, 2009 V. PUBLIC NOTICE COMMENTS This section will be prepared after the public notice period, summarize the comments received during public notice, and provide the Division’s responses to these comments.
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