| January-20 | Sofia, City Center | 12 tons | Large fatberg caused by the accumulation of cooking fats, oils, and wet wipes, blocking a major sewer line. |
| February-20 | Plovdiv, Kapana | 9 tons | Fatberg found in a historic area, primarily composed of fats and oils from nearby restaurants. |
| March-20 | Varna, City Center | 14 tons | Significant fatberg discovered in a central district, causing major sewer blockages. |
| April-20 | Burgas, Lazur | 8 tons | Smaller fatberg caused by improper waste disposal, leading to localized flooding. |
| May-20 | Sofia, Oborishte | 11 tons | Fatberg found near a commercial area, primarily composed of fats, oils, and non-biodegradable items. |
| June-20 | Plovdiv, Trakia | 7 tons | Smaller fatberg discovered in a residential district, composed mainly of organic waste and sanitary products. |
| July-20 | Varna, Asparuhovo | 13 tons | Major fatberg found in a busy district, requiring extensive removal efforts to unblock the sewer system. |
| August-20 | Sofia, Mladost | 10 tons | Fatberg caused by improper waste disposal, leading to significant sewer blockages. |
| September-20 | Burgas, Meden Rudnik | 12 tons | Fatberg discovered near a residential area, primarily composed of fats and oils from households. |
| October-20 | Sofia, Lozenets | 14 tons | Largest fatberg of the year, causing major disruptions in the sewer system of a residential district. |
| November-20 | Plovdiv, Marasha | 9 tons | Fatberg found near a historic site, primarily composed of fats, oils, and organic waste from nearby restaurants. |
| December-20 | Varna, Vinitsa | 11 tons | Significant fatberg discovered in a residential area, caused by improper disposal of cooking fats. |
| January-21 | Sofia, Lyulin | 8 tons | Smaller fatberg discovered near a commercial district, composed mainly of household and commercial waste. |
| February-21 | Plovdiv, Kamenitsa | 10 tons | Fatberg found in a residential area, causing localized flooding and sewer blockage. |
| March-21 | Burgas, Sarafovo | 14 tons | Major fatberg discovered in a densely populated district, requiring significant removal efforts. |
| April-21 | Sofia, Vitosha | 9 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to sewer blockages. |
| May-21 | Plovdiv, Smirnenski | 11 tons | Significant fatberg found near a commercial area, causing extensive sewer disruptions. |
| June-21 | Varna, Briz | 13 tons | Fatberg discovered in a residential district, primarily composed of fats, oils, and non-biodegradable waste. |
| July-21 | Sofia, Nadezhda | 10 tons | Fatberg found near a university, caused by improper disposal of fats, oils, and sanitary products. |
| August-21 | Plovdiv, Karshiaka | 9 tons | Smaller fatberg discovered in a residential area, primarily composed of household waste. |
| September-21 | Burgas, Izgrev | 14 tons | One of the largest fatbergs of the year, blocking a main sewer line in a commercial district. |
| October-21 | Sofia, Vrazhdebna | 11 tons | Fatberg discovered near a historic site, primarily composed of fats, oils, and non-biodegradable items. |
| November-21 | Varna, Levski | 10 tons | Fatberg caused by improper disposal of cooking fats, blocking a main sewer line in a residential area. |
| December-21 | Plovdiv, Zaharna Fabrika | 13 tons | Significant fatberg found in a residential district, causing major sewer blockages. |
| January-22 | Sofia, Hadzhi Dimitar | 8 tons | Smaller fatberg discovered near a university, primarily composed of fats, oils, and sanitary products. |
| February-22 | Burgas, Zornitsa | 10 tons | Fatberg found in a residential area, caused by improper disposal of waste, leading to localized flooding. |
| March-22 | Varna, Pobeda | 12 tons | Major fatberg discovered in a densely populated district, causing significant sewer disruptions. |
| April-22 | Sofia, Knyazhevo | 9 tons | Fatberg found near a historic site, primarily composed of organic waste from nearby restaurants. |
| May-22 | Plovdiv, Stolipinovo | 13 tons | Fatberg discovered near a residential district, primarily composed of fats, oils, and non-biodegradable waste. |
| June-22 | Burgas, Slaveykov | 11 tons | Significant fatberg discovered in a commercial area, causing major sewer blockages. |
| July-22 | Varna, Vladislav Varnenchik | 14 tons | Fatberg discovered near a residential district, primarily composed of fats, oils, and sanitary products. |
| August-22 | Sofia, Dragalevtsi | 10 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to sewer overflow. |
| September-22 | Plovdiv, Komatevo | 12 tons | Significant fatberg found near a commercial area, causing major sewer disruptions. |
| October-22 | Burgas, Kraimorie | 14 tons | Largest fatberg reported in late 2022, causing extensive sewer blockages in a busy district. |
| November-22 | Sofia, Bankya | 9 tons | Fatberg discovered near a historic site, primarily composed of fats, oils, and non-biodegradable items. |
| December-22 | Varna, Galata | 11 tons | Significant fatberg found in a residential area, caused by improper disposal of cooking fats and oils. |
| January-23 | Plovdiv, Hristo Smirnenski | 13 tons | Fatberg discovered near a commercial district, requiring extensive removal efforts to unblock the sewer system. |
| February-23 | Sofia, Gorna Banya | 10 tons | Fatberg found near a residential area, primarily composed of household waste and non-biodegradable items. |
| March-23 | Burgas, Banevo | 11 tons | Major fatberg discovered in a residential area, causing localized flooding and sewer blockages. |
| April-23 | Varna, Mladost | 14 tons | Fatberg caused by improper disposal of waste in a residential district, leading to extensive sewer damage. |
| May-23 | Sofia, Boyana | 9 tons | Fatberg found near a luxury residential area, primarily composed of fats, oils, and sanitary products. |
| June-23 | Plovdiv, Belomorski | 12 tons | Significant fatberg discovered near a commercial area, causing major sewer blockages. |
| July-23 | Burgas, Vetren | 14 tons | Fatberg found in a residential district, caused by improper disposal of fats and oils. |
| August-23 | Varna, Vinitsa | 10 tons | Fatberg discovered near a historic district, causing localized flooding and sewer overflow. |
| September-23 | Sofia, Simeonovo | 13 tons | Significant fatberg found in a busy district, requiring extensive removal efforts. |
| October-23 | Plovdiv, Ostromila | 14 tons | Major fatberg discovered near a university, causing extensive sewer disruptions. |
| November-23 | Burgas, Dolno Ezerovo | 10 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to sewer blockages. |
| December-23 | Varna, Aksakovo | 12 tons | Significant fatberg found in a commercial district, primarily composed of fats, oils, and non-biodegradable items. |
| January-24 | Sofia, Manastirski Livadi | 14 tons | Fatberg discovered near a historic district, causing extensive sewer blockages and minor flooding. |
| February-24 | Plovdiv, Proslav | 10 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to localized flooding. |
| March-24 | Burgas, Sarafovo | 12 tons | Significant fatberg discovered near a commercial area, causing major sewer blockages. |
| April-24 | Varna, Zvezditsa | 14 tons | Major fatberg discovered in a historic district, causing extensive sewer damage and traffic disruptions. |
| May-24 | Sofia, Ovcha Kupel | 10 tons | Fatberg found near a commercial district, primarily composed of fats, oils, and sanitary products. |
| June-24 | Plovdiv, Yug | 11 tons | Significant fatberg discovered in a residential area, causing major sewer disruptions. |
| July-24 | Burgas, Sarafovo | 13 tons | Fatberg discovered near a historic district, primarily composed of fats, oils, and non-biodegradable items. |
| August-24 | Varna, Maksuda | 10 tons | Fatberg caused by improper disposal of cooking fats, blocking a main sewer line in a residential area. |