ࡱ> #` 6#bjbjmm B~  / / /8D/l/ jl00000pLpLpLUjWjWjWjWjWjWj$Blhn{j TFlLTT{j 00j{X{X{XT 80< l0Uj{XTUj{X{Xc$  ,d00 $^& /U*id1f$j0jd>oV*o4do dppL`N{XP\Q pLpLpL{j{jW|pLpLpLjTTTT $$ / /  OFFICE NO: 8 INSPECTOR: NNA PCA SYSTEM TASK NO.: 102  8 360105001 Colton, City of STP, Colton WDS No. NAME OF AGENCY OR PARTY RESPONSIBLE FOR DISCHARGE NAME OF FACILITY 05-075 650 N. La Cadena Drive 1201 S. Rancho Avenue WDR Ord No. AGENCY STREET ADDRESS FACILITY STREET  08 18 09 A1 Colton, CA 92324 Colton, CA 92324  MM DD YY TYPE AGENCY STREET ADDRESS FACILITY CITY & STATE 08 18 09 Eric R. Fraser Martin Guerrero Actual Inspection AGENCY CONTACT FACILITY CONTACT Date (YYDDMM)  (909)370-6111 (909) 825-7223 AGENCY PHONE NO. FACILITY PHONE NO. S Inspection Agency (S=STATE, J=JOINT STATE/USEPA)   N If this inspection is a compliance inspection on an NPDES facility, send a copy of this report to SWRCBs Division of Water Quality, Program Support Unit INSPECTION TYPE (Check One) A1 X A type compliance--Comprehensive inspection in which samples are taken. (EPA Type S) B1 B type compliance--A routine nonsampling inspection. (EPA Type C) 02 Noncompliance follow-up--Inspection made to verify correction of a previously identified violation. 03 Enforcement follow-up--Inspection made to verify that conditions of an enforcement action are being met. 04 Complaint--Inspection made in response to a complaint. 05 Pre-requirement--Inspection made to gather info. relative to preparing, modifying, or rescinding requirements. 06 Miscellaneous--Any inspection type not mentioned above. If this is an EPA inspection not mentioned above please note type. (e.g. biomonitoring, performance audit, diagnostic, etc.)  N Were violations noted during this inspection? (Yes/No/Pending Sample Results)  N Was this a Quality Assurance-Based inspection?  N Were bioassay samples taken? (N=no) If YES then, S= Static or F= Flow through. INSPECTION SUMMARY (REQUIRED) (100-character limit) Treatment plant is operating adequately and there were no violations at this time. INITIALS: NNA SIGNATURE: DATE: October 30, 2009 For Internal Use: Reviewed by: (1) (2) (3) Regional WDS Coordinator WDS Data Entry Date: -- -- Regional Board File Number:  VIOLATION (IF APPLICABLE) VIOLATION TYPE? (A-G) (See Pages IK05.0 and IK05.1 of the Micro Waste Discharger System Users Manual) DATE OF VIOLATION (YYMMDD): NA  DATE OF VIOLATION DETERMINATION (YYMMDD): DESCRIPTION OF VIOLATION (200 Character Limit): EMWD is in violation of Order #98-67 for exceeding pH limits at both ends of the acceptable range. EPA SUGGESTED INSPECTION CHECKLIST SatisfactoryMarginalUnsatisfactoryNot EvaluatedPermitXFlow MeasurementXPretreatmentXOperations and MaintenanceXRecords/ReportsXLaboratoriesXCompliance SchedulesXSludge DisposalXFacility Site ReviewXEffluent/Receiving WatersXSelf-MonitoringX Overall Facility Operation Evaluation  (5=Very Reliable; 3=Satisfactory; 1=Unrelaiable): 3 HISTORICAL INFORMATION: MOST RECENT: Order No.Adopted DateTypeDate of InspectionInspection TypeViolationsViolation TypeDate00-00910/06/00NPDES01/19/06A1N05-07509/30/05NPDES08/01/06B1N05-07509/30/05NPDES09/13/07A1N05-07509/30/05NPDES01/08/09B1N05-07509/30/05NPDES08/18/09A1N ADDITIONAL COMMENTS, SPECIAL INSTRUCTIONS, ITEMS FOR FOLLOWUP ON FUTURE INSPECTIONS, NOTES, ETC. (On following pages, if necessary) SEE ATTACHED INSPECTION NOTES. ADDITIONAL INFORMATION Report Date: October 30, 2009 Location & County: 650 N. La Cadena Drive, Colton, CA 92324, San Bernardino County Contact(s): Martin Guerrero, Chief Operator Inspection Date: August 18, 2009 Inspected By: Najah N. Amin, WRCE Site(s): STP, Colton, 120 S. Rancho Road, Colton, CA 92324 Observations and Comments: On August 18, 2009, I inspected the City of Colton's STP to verify the facilitys effluent discharge compliance with Order No. R8-2005-0075. Both screen bars at the head-works are operational and floating materials and solids are removed efficiently; nothing has changed mechanically or physically. One of the two chambers of the head-works was cleaned and repaired last year and put to operation. This year the second one is empty and the operators are in the process of cleaning this chamber by removing accumulated solids and repairing the structure of the chamber. Small amounts of the grit from the bottom of the head-works are being circulated to the top of the head-works to extend the time of the grit settlings. The grit is removed from head-works every 3 months. Digester #2 & #3 are operating and digester #1 is out of service due to a collapsed dome. Plant #1 is abandoned. Both digesters and plant #1 will be removed in the near future. Influent flow to the treatment plant is reduced due to water conservation or abandoned houses in this community. The total influent to the plant was 6.11 MGD. Plant #2 receives 2.45 MGD of wastewater and plant #3 receives 3.66 MGD. Plant #2 is running adequately and odor free. The city of Colton hired a few operators in training (OIT) and these operators are hard at work. They clean the aeration basin and the secondary clarifier daily to get rid of a massive algae build-up around the weirs and sludge crust on the surface of the aeration basin. Influent to Plant # 3 was 3.66 MGD. This plant has five oxidation ditches and they were operating very efficiently. Two of these units have SymBio systems. The SymBio system decreases the demand for continuous air flow. Mixed liquor color looked dark brown with a musky odor indicating good mixing. Wastewater in the secondary clarifiers looked clear and clean. A turbidity read-out instrument has been installed at the effluents discharge point to continuously read the effluent turbidity. The effluent flow reading was 6.07 MGD, pH 7.32 units, EC was 777, and turbidity was 1.12 NTU. City of Colton got rid of their own sewer crew and they are contracting Huston and Harris contractors for sewer cleanup and maintenance. Review of monthly reports and lab results indicate that this facility is in compliance with Order No. R8-2005- 0075. No violations were detected during this inspection.   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