# Estimating Average and Peak Hour Wastewater Flow for Camp Swampy ## **Facility Composition** - **Campers:** 350 (central toilet and bath) - **Staff:** 40 (private bath, 2/staff cottage) - **Dining Hall:** Serves all meals ## **Assumptions** 1. **Standard per capita wastewater flow rates:** - **Campers (central facilities):** 50 gallons per capita per day (gpcd) - **Staff (private bath):** 75 gpcd - **Dining hall:** Included in the per-person flows (since meals are for all) 2. **Wastewater from kitchens, toilets, and baths included in above rates.** 3. **Peak hour factor (PHF):** 4 (common for camps) 4. **1 gallon = 3.785 liters** (for SI conversion if needed) --- ## **Step 1: Calculate Average Daily Wastewater Flow** ### **Campers** \[ 350 \text{ campers} \times 50 \text{ gpcd} = 17,500 \text{ gallons/day} \] ### **Staff** \[ 40 \text{ staff} \times 75 \text{ gpcd} = 3,000 \text{ gallons/day} \] ### **Total Average Daily Flow** \[ 17,500 + 3,000 = 20,500 \text{ gallons/day} \] --- ## **Step 2: Convert to Gallons per Hour (Average)** \[ \text{Average hourly flow} = \frac{20,500}{24} \approx 854 \text{ gallons/hour} \] --- ## **Step 3: Calculate Peak Hour Flow** \[ \text{Peak hour factor (PHF)} = 4 \] \[ \text{Peak hour flow} = \text{Average hourly flow} \times \text{PHF} \] \[ \text{Peak hour flow} = 854 \times 4 = 3,416 \text{ gallons/hour} \] --- ## **Summary Table** | Source | Population | Rate (gpcd) | Flow (gpd) | |----------|------------|-------------|------------| | Campers | 350 | 50 | 17,500 | | Staff | 40 | 75 | 3,000 | | **Total**| 390 | — | 20,500 | --- ## **Final Answers** - **Average Daily Wastewater Flow:** **20,500 gallons/day** - **Average Hourly Flow:** **854 gallons/hour** - **Peak Hour Flow:** **3,416 gallons/hour** --- ## **Notes** - If more precise per capita rates are available for such camps, adjust accordingly. - Dining hall flows are generally included in the per capita rates for camps and institutions. - For stricter design or regulatory requirements, consult local codes or guidelines. --- **No images are included in this text response.**