| Quality rating | Fair |
| Water type | Fresh |
| Borehole viable | Yes |
| Borehole depth | 50–80m |
| Treatment needed | Moderate quality. Some areas near lagoon have salinity. |
| Sachet (pure water) | ₦500 | per bag (20 sachets) |
| Bottled water | ₦1,300 | per pack (12 bottles) |
| Tanker delivery | ₦28,000 | per 10,000L delivery |
| Borehole (drilling) | — | — |
| Borehole (monthly) | ₦15,000 | per month (Band A area) |
⚠ Water quality is fair — borehole water may need additional treatment beyond basic filtration. Test your water before relying on it for drinking. Consider a combination of borehole (for bathing/washing) and sachet water (for drinking).
BOREHOLE + FILTER: Drill to 60-80m. Basic sediment and carbon filter. Monthly: ₦12,000-₦20,000.
Surulere has moderate-quality groundwater at 50-80m depth. Some areas near the lagoon shore (Costain, Iddo side) have higher salinity. The interior residential areas have fresher water. Borehole plus basic filtration is the standard solution.
Under the Lagos State Environmental Management Protection Law, drilling a borehole without LASWARCO authorization is illegal. Fine: ₦500,000 + up to 1 month imprisonment. Always obtain a permit before drilling, and hire a licensed hydrogeological surveyor to assess your site.
LASWARCO permit required. ₦500,000 fine + 1 month imprisonment for drilling without authorization.