CIVIL STRUCTURAL MARINE TOPOGRAPHIC SURVEYING TBPE FIRM No. F-12240 PHONE: 361-946-4848 EMAIL: [email protected] 1608 S. BROWNLEE BLVD CORPUS CHRISTI, TX, 78404 MUNOZ ENGINEERING A 1 B C D E F G H J K 2 3 4 5 6 7 8 9 10 10 9 8 7 6 5 4 3 2 1 K J H G F E D C B A SHEET NUMBER This drawing is the property ofThis drawing is the property of the architect and may not be reproduced, published or used in any way without their permission. Copyright Dykema Architects, Inc. PROJECT NO. DATE REVISIONS: 6116 S. STAPLES ST. CORPUS CHRISTI, TX 78413 A - 05/12/17 0 SCALE: 1" = 30' 60 30 THIS EROSION AND POLLUTION CONTROL PLAN (E&PCP) IS TO PROVIDE GENERAL INFORMATION REGARDING EROSION AND POLLUTION CONTROLS FOR THE PROJECT. THIS PLAN IS NOT A STORMWATER POLLUTION PREVENTION PLAN AND WILL NOT SATISFY ALL THE REQUIREMENTS FOR THE PERMITTING OF DISCHARGE OF STORMWATER ASSOCIATED WITH THE CONSTRUCTION ACTIVITY. NOTICE: THIS PAGE OF THE DRAWINGS DOES NOT CONTAIN ALL NOTES AND REQUIREMENTS FOR THE PROJECT. IT WILL BE THE RESPONSIBILITY OF THE GENERAL CONTRACTOR AND ANY SUB-CONTRACTORS (BOTH OF WHICH HEREINAFTER SHALL BE KNOWN AS "CONTRACTOR) PERFORMING WORK ON THIS PROJECT TO BE KNOWLEDGEABLE WITH ALL PROJECT NOTES AND REQUIREMENTS, AND PROJECT DRAWINGS. GENERAL PROJECT INFORMATION 1. THIS PROJECT WILL CONSIST OF AND BE GENERALLY PERFORMED IN THE FOLLOWING SEQUENCE (NOTE: SOME IMPROVEMENTS LISTED MAY NOT BE APPLICABLE): 1.1. SITE PREPARATION 1.2. GENERAL SITE GRADING 1.3. INSTALLATION OF THE FOLLOWING UTILITIES: 1.3.1. SANITARY SEWER UTILITY 1.3.2. STORM SEWER UTILITY 1.3.3. WATER UTILITY 1.4. PAVEMENT IMPROVEMENTS 1.5. FINAL GRADING 1.6. SITE CLEAN-UP 1.7. SITE SOIL STABILIZATION 2. THE CONTRACTOR IS SOLELY RESPONSIBLE TO OBTAIN THE REQUIRED PERMITS AND TO ADHERE TO ALL POLLUTION PREVENTION REQUIREMENTS OF THE CITY, COUNTY, STATE, FEDERAL REGULATIONS, APPLICABLE PERMITS, AND THE STORM WATER POLLUTION PREVENTION PLAN(S) (SW3P) FOR THE PROJECT. 2.1. IN THE EVENT OF A CONFLICT WITH ANY REQUIREMENT, THE MOST STRINGENT REQUIREMENT SHALL BE APPLICABLE. 3. THE CONTRACTOR WILL BE RESPONSIBLE FOR COMPLIANCE, INSTALLATION, MAINTENANCE, AND REMOVAL AND IT WILL BE THE RESPONSIBILITY OF THE CONTRACTOR TO ENSURE THAT ALL MEASURES ARE TAKEN TO MAINTAIN COMPLIANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS UNTIL THE DISTURBED AREA ON THE SITE IS AT A MINIMUM OF SEVENTY-PERCENT (70%) STABILIZED. 3.1. THE EROSION AND POLLUTION CONTROL PLAN (E&PCP) WITHIN THIS SET OF DRAWINGS IS A MINIMUM RECOMMENDATION OF THE EROSION CONTROL DEVICES (ECDs) THAT WILL BE NEEDED. 3.2. THE CONTRACTOR MAY BE REQUIRED TO INSTALL ADDITIONAL EROSION CONTROL DEVICES AND BEST MANAGEMENT PRACTICES (BMPs) AS NOTED ON THE CONTRACTOR'S STORMWATER POLLUTION PREVENTION PLAN (CSW3P) MAY BE TO ENSURE COMPLIANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS TO SATISFY REQUIREMENTS AS THE PRIMARY OPERATOR AS DEFINED WITHIN THE TEXAS POLLUTANT DISCHARGE ELIMINATION SYSTEM (TPDES). 4. MATERIAL POSSIBLE POLLUTANT SOURCE 4.1. POTENTIAL POLLUTANTS FROM THE CONSTRUCTION SITE MAY INCLUDE, BUT ARE NOT LIMITED TO THE FOLLOWING: 4.1.1. SEDIMENT 4.1.2. SOLID WASTE 4.1.3. SANITARY WASTE 4.1.4. DEBRIS 4.1.5. CONSTRUCTION CHEMICALS 4.1.6. PETROLEUM PRODUCTS 4.1.7. CONSTRUCTION MATERIALS 4.1.8. NUTRIENTS 4.1.9. METALS 4.1.10. OTHERS DEPENDING ON THE TYPES AND METHODS OF CONSTRUCTION 5. INSPECTION 5.1. DAILY INSPECTION 5.1.1. THE CONTRACTOR WILL BE RESPONSIBLE FOR PERFORMING AN INSPECTION OF ALL ECDs AND BMPs AND PERFORM MAINTENANCE ON ANY DAMAGED OR COMPROMISED DEVICES IMMEDIATELY. 5.2. WEEKLY INSPECTION 5.2.1. THE CONTRACTOR WILL BE RESPONSIBLE FOR PERFORMING AN INSPECTION OF ALL ECDs AND BMPs EVERY SEVEN (7) CALENDAR DAYS AND WITHIN TWELVE (12) HOURS AFTER A WEATHER EVENT RESULTING IN A PRECIPITATION OF ONE-HALF INCH (1/2") OR GREATER. 5.3. THE INSPECTIONS SHALL BE DOCUMENTED ON A FORM APPROVED BY THE ENGINEER AND THE OWNER'S REPRESENTATIVE. 5.3.1. THIS REPORT IS TO BE PROVIDED TO THE ENGINEER AND THE OWNER'S REPRESENTATIVE WITHIN 24 HOURS OF COMPLETION. GENERAL REQUIREMENTS 1. THE STABILIZED CONSTRUCTION ENTRANCE / EXIT AND OTHER DEVICES SHALL BE INSTALLED PRIOR TO COMMENCING ANY CONSTRUCTION AND OTHER DEVICES SHALL BE INSTALLED WHEN APPROPRIATE. 2. STORM SEWER UTILITY APPURTENANCES SHALL BE PROTECTED AS THEY ARE INSTALLED WITH APPROPRIATE DEVICES. 3. STREETS, STORM SEWER INLETS, MANHOLES, OUTFALLS, AND OTHER STRUCTURES WITHIN AND ADJACENT TO THE DEVELOPMENT SHALL HAVE ANY SEDIMENTS AND DEBRIS REMOVED FROM THEM PRIOR TO AND AFTER EACH WEATHER EVENT. 4. STABILIZATION OF DISTURBED AREAS SHALL BE PROVIDED AS SOON AS POSSIBLE BY APPROVED METHODS. 5. STORM WATER FROM ADJACENT PROPERTIES SHALL NOT BE BLOCKED DURING CONSTRUCTION. 6. THE CONTRACTOR IS TO OBTAIN ALL REQUIRED POLLUTION PREVENTION PERMITS AND POST ON-SITE PRIOR TO COMMENCING CONSTRUCTION. PROTECTION OF VEGETATION AND ENVIRONMENTALLY SENSITIVE AREAS 1. VEGETATION AND ENVIRONMENTALLY SENSITIVE AREA(S) THAT ARE NOTED ON THE DRAWINGS OR AS DIRECTED BY THE OWNER'S REPRESENTATIVE TO REMAIN SHALL BE PROTECTED, BY INDUSTRY STANDARDS BY THE CONTRACTOR FROM DISTURBANCE AND DAMAGE. 2. CARE AND TRIMMING FOR ANY VEGETATION SHALL BE COMPLETED IN ACCORDANCE WITH STANDARD HORTICULTURAL PRACTICES. 2.1. THE CONTRACTOR WILL BE RESPONSIBLE FOR CARE/REPLACEMENT OF ANY DAMAGED VEGETATION BY A COMPETENT PERSON/COMPANY AT HIS SOLE EXPENSE FOR A TIME PERIOD OF NOT LESS THAN ONE-YEAR (1-YEAR). 3. DISTURBANCE OR DAMAGE TO ANY ENVIRONMENTALLY SENSITIVE AREA(S) BY THE CONTRACTOR WILL REQUIRE THE CONTRACTOR, AT HIS SOLE RESPONSIBILITY AND EXPENSE, INCLUDING ANY FINES, TO REMEDY THE DISTURBANCE OR DAMAGE TO THE REQUIREMENTS OF LOCAL, STATE, AND FEDERAL REGULATIONS AND REQUIREMENTS. 3.1. CONTRACTOR WILL BE REQUIRED TO PROVIDE APPROVALS FOR THE REMEDY AND APPROVAL THAT THE REMEDY IS COMPLETE PRIOR TO FINAL PAYMENT OF ANY RETAINAGE FOR THE PROJECT IS RELEASED. POLLUTION CONTROL NOTES 1. POLLUTION CONTROL PLAN 1.1. THE CONTRACTOR SHALL DEVELOP A POLLUTION CONTROL PLAN THAT ADDRESSES, BUT NOT LIMITED TO THE FOLLOWING: 1.1.1. SOLID WASTE, 1.1.2. SANITARY FACILITIES, 1.1.3. WASHING AREAS, 1.1.4. PREVENTING AND LIMITING DUST AND WIND TRANSPORTED MATERIALS, 1.1.5. EQUIPMENT MAINTENANCE AND REPAIR, 1.1.6. CONSTRUCTION MATERIALS, FLUIDS, AND CHEMICALS, 1.1.7. DEWATERING EFFLUENT, 1.1.8. AND RELATED INFORMATION FOR COMPLIANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS. 2. SOLID WASTE 2.1. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR ALL SOLID WASTE FROM CONSTRUCTION ACTIVITIES AND WILL BE HIS RESPONSIBILITY TO HANDLE, COLLECT, AND DISPOSE OF THE MATERIALS IN ACCORDANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS. 2.2. SOLID WASTE SHALL BE PLACED IN CONTAINERS THAT ARE APPROPRIATE AND IN GOOD CONDITION FOR THE TYPE OF WASTE. 2.2.1. CONTAINERS SHALL BE FREE OF GRAFFITI. 2.2.1. WASTE SHALL NOT BE PLACED IN THE CONTAINER ABOVE THE RIM. 3. SANITARY FACILITIES 3.1. ADEQUATE SANITARY FACILITIES FOR WORKERS SHALL BE SUPPLIED AND MAINTAINED ON-SITE THROUGHOUT THE DURATION OF THE PROJECT. 3.2. LOCATION OF FACILITIES SHALL PREVENT CONTAMINATION OF SOIL, SURFACE WATER, AND/OR GROUNDWATER. 3.3. PORTABLE UNITS 3.3.1. AT A MINIMUM OF ONCE PER WEEK THE SANITARY WASTE SHALL BE COLLECTED AND DISPOSED OF IN ACCORDANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS. 3.3.2. SHALL BE SECURED IN A MANNER THAT WILL PREVENT TIPPING OR SPILLING OF THE WASTE MATERIALS. 3.4. THE CONTRACTOR WILL BE RESPONSIBLE FOR CLEANING ANY SPILLAGE OF WASTE MATERIAL IMMEDIATELY AND DISPOSING THE MATERIAL IN ACCORDANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS. 4. WASHING AREAS 4.1. AREAS FOR VEHICLES AND EQUIPMENT TO BE WASHED AT SHALL BE DESIGNATED BY THE CONTRACTOR AT LOCATIONS OR DEVICES SUCH THAT THE WASH WATER WILL EVAPORATE OR HAULED OFF-SITE SO THAT ANY SOLIDS AND CONTAMINANTS CAN BE DISPOSED OF IN ACCORDANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS. 4.2. SHALL BE LOCATED SUCH THAT ANY RUNOFF WILL NOT FLOW INTO DRAINAGE WAYS, WATER BODIES, OR ENVIRONMENTALLY SENSITIVE AREAS. 4.3. CONCRETE TRUCK AND EQUIPMENT WASH LOCATIONS SHALL BE DETERMINED BY THE CONTRACTOR. 4.4. IF THIS SET OF DRAWINGS INDICATE AN LOCATION IT IS FOR REFERENCE ONLY AND CAN BE MOVED BY THE CONTRACTOR AT ANYTIME. 5. PREVENTING AND LIMITING DUST AND WIND TRANSPORTED MATERIALS 5.1. THE AMOUNT OF DUST AND WIND TRANSPORTED MATERIALS ON-SITE AND OFF-SITE SHALL BE LIMITED AND PREVENTED FROM OCCURRING DURING AND AFTER WORKING HOURS EACH DAY (WORKING OR NON-WORKING) THROUGHOUT THE DURATION OF THE PROJECT. 5.1.1. AT ANYTIME THAT THE AMOUNT OF DUST OR WIND TRANSPORTED MATERIALS CAUSES SAFETY HAZARDS ON-SITE OR OFF-SITE THE CONTRACTOR SHALL IMMEDIATELY TAKE ANY AND ALL MEASURES TO CONTROL THE DUST OR MATERIALS. 5.2. PHASING OF WORK ON THE SITE AND THE USE OF WATER, TEMPORARY COVER, AND/OR DUST CONTROL AGENTS SHALL BE IMPLEMENTED BY THE CONTRACTOR. 6. EQUIPMENT MAINTENANCE AND REPAIR 6.1. ALL EQUIPMENT ON-SITE SHALL BE PROPERLY MAINTAINED TO PREVENT POLLUTION OF THE PROJECT SITE. 6.2. EQUIPMENT MAINTENANCE ON-SITE SHALL BE AT LOCATIONS THAT WILL PREVENT CONTAMINANTS FROM POLLUTING THE SITE AND ENTERING INTO DRAINAGE WAYS, WATER BODIES, OR ENVIRONMENTALLY SENSITIVE AREAS. 6.3. EQUIPMENT REPAIR SHALL NOT BE PERFORMED ON-SITE UNLESS APPROVED BY THE OWNER'S REPRESENTATIVE AND IN SUCH CASE THE REPAIR SHALL BE DONE SUCH THAT CONTAMINANTS ARE PREVENTED FROM POLLUTING THE SITE AND ENTERING INTO DRAINAGE WAYS, WATER BODIES, OR ENVIRONMENTALLY SENSITIVE AREAS. 7. CONSTRUCTION MATERIALS, CHEMICALS, AND FLUIDS 7.1. GENERAL 7.1.1. THE AMOUNT AND TYPES OF MATERIALS, CHEMICALS, AND FLUIDS AT THE PROJECT SITE SHALL BE LIMITED TO WHAT IS REQUIRED TO PERFORM THE WORK. 7.1.2. IT WILL BE THE RESPONSIBILITY OF THE CONTRACTOR FOR COMPLIANCE WITH OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) HAZARD COMMUNICATION STANDARD (HCS) THROUGHOUT THE DURATION OF THE PROJECT. 7.1.3. STORAGE OF ALL CHEMICALS SHALL BE IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS, AND LOCAL, STATE, AND FEDERAL REGULATIONS AND FACILITIES SHALL BE SECURED WHEN PERSONNEL ARE NOT PRESENT. 7.1.4. STORAGE OF CHEMICALS AND METHODS SHALL PREVENT CHEMICALS FROM POLLUTING THE SURFACE, WATER BODIES, GROUNDWATER, OR ENVIRONMENTALLY SENSITIVE AREAS. 7.1.5. DISPOSAL OF MATERIALS, CHEMICALS, AND FLUIDS SHALL BE IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS AND LOCAL, STATE, AND FEDERAL REGULATIONS. 7.2. HAZARDOUS MATERIALS AND WASTES 7.2.1. MATERIAL SAFETY DATA SHEETS (MSDS's) SHALL BE POSTED AND ACCESSIBLE ON-SITE AT ALL TIMES FOR EACH SUBSTANCE WITH HAZARDOUS PROPERTIES THAT IS BEING USED DURING CONSTRUCTION. 7.2.2. THE CONTRACTOR WILL BE RESPONSIBLE FOR THE TRAINING OF PERSONNEL ON THE PROPER HANDLING AND DISPOSAL OF HAZARDOUS MATERIALS AND WASTES IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS, MSDS, AND LOCAL, STATE, AND FEDERAL REGULATIONS. 7.3. SPILLAGE OF HAZARDOUS LIQUIDS 7.3.1. MANUFACTURER'S RECOMMENDATIONS FOR SPILL CLEANUP SHALL BE POSTED ON-SITE AT THE LOCATION OF THE MATERIAL SAFETY DATA SHEETS (MSDS). 7.3.1.1. ALL PERSONNEL SHALL KNOW THE LOCATION OF THIS INFORMATION. 7.3.2. EQUIPMENT AND MATERIALS FOR SPILL CONTAINMENT SHALL BE KEPT ON-SITE AND ANY REQUIRED CLEANUP MATERIALS SHALL BE OBTAINED AND PROVIDED TO THE SITE IN A REASONABLE AMOUNT OF TIME. 7.3.3. IMMEDIATE CONTAINMENT AND CLEANUP OF ANY SPILLS SHALL BE COMPLETED BY THE CONTRACTOR IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS, MATERIAL SAFETY DATA SHEET'S (MSDS), AND ANY LOCAL, STATE, AND FEDERAL REGULATIONS AND REQUIREMENTS. 7.3.3.1. ANY SPILLS THAT ENTER DRAINAGE AREAS, WATERWAYS, WATER BODIES, AND/OR ENVIRONMENTALLY SENSITIVE AREA(S) WILL REQUIRE THE CONTRACTOR TO SOLELY NOTIFY ALL LOCAL, STATE, AND FEDERAL AGENCIES WITH JURISDICTION AND OBTAIN ANY REQUIRED APPROVALS FOR THE CLEANUP AND RESTORATION OF THE AREA AS REQUIRED BY THE ENTITY. 7.3.3.1.1. CONTRACTOR WILL BE REQUIRED TO PROVIDE APPROVALS FOR THE REMEDY AND APPROVAL THAT THE REMEDY IS COMPLETE PRIOR TO FINAL PAYMENT OF ANY RETAINAGE FOR THE PROJECT IS RELEASED. 7.3.4. THE CONTRACTOR SHALL CONTACT THE OWNER'S REPRESENTATIVE ABOUT ANY SPILLS AND PROVIDE THE PROCESS FOR CLEANUP. 7.4. FUEL 7.4.1. FUEL CONTAINERS AND DISPENSING EQUIPMENT SHALL BE FREE OF DAMAGE THAT POSSIBLY COULD COMPROMISE CONTAINMENT. 7.4.2. CONTAINERS AND DISPENSING EQUIPMENT SHALL MEET LOCAL, STATE, AND FEDERAL REGULATIONS. 7.4.3. FUEL CONTAINERS GREATER THEN SIX (6) GALLONS SHALL BE STORED WITHIN SECONDARY SPILL CONTAINMENT DEVICES THAT MEET APPLICABLE REGULATIONS. 7.4.4. FUEL STORAGE AREAS WILL BE REQUIRED TO MEET ALL LOCAL, STATE, AND FEDERAL REGULATIONS 8. DEMOLITION AREAS 8.1. DEMOLITION OF STRUCTURES WILL REQUIRE THE CONTRACTOR TO PROVIDE DUST CONTROL. 8.2. ANY LIQUIDS FROM DUST CONTROL SHALL BE KEPT ON-SITE AND NOT ALLOWED TO FLOW DIRECTLY INTO DRAINAGE WAYS, WATER BODIES, OR ENVIRONMENTALLY SENSITIVE AREAS WITHOUT GOING THROUGH PROPER POLLUTION CONTROL DEVICES 9. DEWATERING EFFLUENT 9.1. THE CONTRACTOR SHALL OBTAIN ANY PERMITS THAT ARE REQUIRED FOR ALL NON-STORMWATER DISCHARGES INTO THE LOCAL ENTITY STORM WATER UTILITY SYSTEM. 9.2. DEWATERING EFFLUENT WILL NOT BE ALLOWED TO BE DISCHARGED FROM THE PROJECT SITE WITHOUT GOING THROUGH APPROPRIATE POLLUTION PREVENTION / TREATMENT DEVICE(S). 9.3. DISCHARGE POINTS SHALL BE CONSTRUCTED SUCH THAT EROSION IS PREVENTED. 9.4. CONTRACTOR WILL BE REQUIRED TO TEST THE FIRST WATER BODY THAT WILL ACCEPT THE DEWATERING EFFLUENT PRIOR TO COMMENCING DEWATERING ACTIVITIES. 9.5. EFFLUENT DISCHARGE COMPOSITION LIMITS SHALL BE AS FOLLOWS, UNLESS OTHERWISE STATED OR REQUIRED BY THE LOCAL ENTITY: PARAMETER FREQUENCY OF MONITORING MAXIMUM LIMITATION (mg/L) TOTAL DISSOLVED SOLIDS (TDS) ONCE < RECEIVING WATER TDS TOTAL SUSPENDED SOLIDS (TSS) ONCE < RECEIVING WATER TSS pH EVERY 7 DAYS 6 - 9 STANDARD UNITS TOTAL PETROLEUM HYDROCARBONS EVERY 7 DAYS 15.0 (TCEQ METHOD 1500) TOTAL LEAD EVERY 7 DAYS 0.10 BENZENE EVERY 7 DAYS 0.005 TOTAL BTEX EVERY 7 DAYS 0.10 POLYNUCLEAR AROMATIC HYDROCARBONS EVERY 30 DAYS 0.01 MTBE EVERY 7 DAYS 0.15 9.5.1. THE CONTRACTOR WILL BE RESPONSIBLE FOR PROVIDING ALTERNATIVE METHOD(S) OF DISCHARGING EFFLUENT IF THE EFFLUENT DOES NOT MEET THE ABOVE REQUIREMENTS. 9.5.1.1. ANY METHOD(S) SHALL BE IN ACCORDANCE WITH LOCAL, STATE, AND FEDERAL REQUIREMENTS. 10. PROJECT COMPLETION 10.1. THE CONTRACTOR SHALL REMOVE ALL SOLID WASTE MATERIALS FROM THE SITE AND ENSURE THAT THE PROJECT SITE IS FREE OF CONTAMINANTS DUE TO CONSTRUCTION ACTIVITIES. 10.2. STREETS, STORM SEWER INLETS, MANHOLES, OUTFALLS, AND OTHER STRUCTURES WITHIN AND ADJACENT TO THE DEVELOPMENT SHALL HAVE ANY SEDIMENTS AND DEBRIS REMOVED FROM THEM AT COMPLETION OF CONSTRUCTION. 10.3. THE CONTRACTOR WILL BE RESPONSIBLE FOR STABILIZING ALL REMAINING DISTURBED UNSTABILIZED AREAS BY MEANS OF SEEDING, MULCHING, SODDING, AND / OR OTHER APPROVED METHODS BY THE OWNER OR OWNER'S REPRESENTATIVE. 10.4. AT TIME OF THE SITE BEING DEEMED STABILIZED, THE CONTRACTOR SHALL REMOVE ALL EROSION AND POLLUTION CONTROL DEVICES, UNLESS OTHERWISE INDICATED ON THE DRAWINGS OR BY THE OWNER'S REPRESENTATIVE. LEGEND PROPOSED STORMWATER / DRAINAGE FLOW DIRECTION ABBREVIATIONS AND DEFINITIONS A AREA AC ACRES C RUNOFF COEFFICIENT I RAINFALL INTENSITY (INCHES/HOUR) I 0 5 DESIGN RAINFALL INTENSITY FOR A 5-YEAR STORM I 10 DESIGN RAINFALL INTENSITY FOR A 10-YEAR STORM I 25 DESIGN RAINFALL INTENSITY FOR A 25-YEAR STORM I 5 0 DESIGN RAINFALL INTENSITY FOR A 50-YEAR STORM I 100 DESIGN RAINFALL INTENSITY FOR A 100-YEAR STORM Q PEAK RUNOFF FLOW Q 0 5 PEAK RUNOFF FOR A 5-YEAR STORM Q 10 PEAK RUNOFF FOR A 10-YEAR STORM Q 25 PEAK RUNOFF FOR A 25-YEAR STORM Q 50 PEAK RUNOFF FOR A 50-YEAR STORM Q 100 PEAK RUNOFF FOR A 100-YEAR STORM T c TIME OF CONCENTRATION CFS CUBIC FOOT PER SECOND CFT CUBIC FOOT FEMA FEDERAL EMERGENCY MANAGEMENT AGENCY 10 0 SCALE: 1" = 30' 60 30 9 8 7 RDOUS RDOUS DERAL DATA AINED TURER TS. QUIRE UIRED OR MEET S, OR TORM RIATE NCING S NOT EE OF HAVE CHING, NLESS